Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
|
|
|
# News
|
|
|
|
|
2022-06-15 09:34:25 +00:00
|
|
|
## 5.3.3
|
|
|
|
|
|
|
|
This is a production release that fixes a build problem in the FreeBSD base
|
|
|
|
system.
|
|
|
|
|
|
|
|
All other users do **NOT** need to upgrade.
|
|
|
|
|
2022-06-14 20:06:28 +00:00
|
|
|
## 5.3.2
|
|
|
|
|
|
|
|
This is a production release that fixes prompt bugs with editline and readline
|
|
|
|
where the `BC_PROMPT` environment variable was not being respected.
|
|
|
|
|
|
|
|
This also fixes editline and readline output on `EOF`.
|
|
|
|
|
2022-06-11 09:54:23 +00:00
|
|
|
## 5.3.1
|
|
|
|
|
|
|
|
This is a production release that fixes a build problem in the FreeBSD base
|
|
|
|
system, as well as a problem in the `en_US` locale. If you don't have problems
|
|
|
|
with either, you do not need to upgrade.
|
|
|
|
|
2022-06-11 09:50:28 +00:00
|
|
|
## 5.3.0
|
|
|
|
|
|
|
|
This is a production release that adds features and has a few bug fixes.
|
|
|
|
|
|
|
|
First, support for editline and readline history has been added. To use
|
|
|
|
editline, pass `-e` to `configure.sh`, and to use readline, pass `-r`.
|
|
|
|
|
|
|
|
Second, history support for Windows has been fixed and re-enabled.
|
|
|
|
|
|
|
|
Third, command-line options to set `scale`, `ibase`, `obase`, and `seed` were
|
|
|
|
added. This was requested long ago, and I originally disagreed with the idea.
|
|
|
|
|
|
|
|
Fourth, the manuals had typos and were missing information. That has been fixed.
|
|
|
|
|
|
|
|
Fifth, the manuals received different formatting to be more readable as
|
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|
|
manpages.
|
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|
|
2022-05-10 12:47:43 +00:00
|
|
|
## 5.2.5
|
|
|
|
|
|
|
|
This is a production release that fixes this `bc`'s behavior on `^D` to match
|
|
|
|
GNU `bc`.
|
|
|
|
|
2022-04-17 11:20:54 +00:00
|
|
|
## 5.2.4
|
|
|
|
|
|
|
|
This is a production release that fixes two bugs in history:
|
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|
|
|
|
|
|
* Without prompt, the cursor could not be placed on the first character in a
|
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|
|
line.
|
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|
|
* Home and End key handling in `tmux` was fixed.
|
|
|
|
|
|
|
|
Any users that do not care about these improvements do not need to upgrade.
|
|
|
|
|
2022-03-07 22:08:20 +00:00
|
|
|
## 5.2.3
|
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|
|
|
|
|
|
This is a production release that fixes one bug, a parse error when passing a
|
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|
|
file to `bc` using `-f` if that file had a multiline comment or string in it.
|
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|
2022-02-05 21:26:36 +00:00
|
|
|
## 5.2.2
|
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|
|
|
|
|
|
This is a production release that fixes one bug, a segmentation fault if
|
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|
|
`argv[0]` equals `NULL`.
|
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|
|
|
|
|
|
This is not a critical bug; there will be no vulnerability as far as I can tell.
|
|
|
|
There is no need to update if you do not wish to.
|
|
|
|
|
2021-11-30 17:33:40 +00:00
|
|
|
## 5.2.1
|
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|
|
|
|
|
|
This is a production release that fixes two parse bugs when in POSIX standard
|
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|
|
mode. One of these bugs was due to a quirk of the POSIX grammar, and the other
|
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|
|
was because `bc` was too strict.
|
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|
2021-11-30 17:26:22 +00:00
|
|
|
## 5.2.0
|
|
|
|
|
|
|
|
This is a production release that adds a new feature, fixes some bugs, and adds
|
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|
|
out-of-source builds and a `pkg-config` file for `bcl`.
|
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|
|
|
|
|
|
The new feature is the ability to turn off exiting on expressions. It is also
|
|
|
|
possible to set the default using `configure.sh`. This behavior used to exist
|
|
|
|
with the `BC_EXPR_EXIT` environment variable, which is now used again.
|
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|
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|
|
|
|
Bugs fixed include:
|
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|
|
|
|
|
|
* Some possible race conditions with error handling.
|
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|
|
* Install and uninstall targets for `bcl` did not work.
|
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|
|
|
2021-10-06 21:27:16 +00:00
|
|
|
## 5.1.1
|
|
|
|
|
|
|
|
This is a production release that completes a bug fix from `5.1.0`. The bug
|
|
|
|
exists in all versions of `bc`.
|
|
|
|
|
|
|
|
The bug was that `if` statements without `else` statements would not be handled
|
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|
|
correctly at the end of files or right before a function definition.
|
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|
2021-10-04 19:22:35 +00:00
|
|
|
## 5.1.0
|
|
|
|
|
|
|
|
This is a production release with some fixes and new features.
|
|
|
|
|
|
|
|
* Fixed a bug where an `if` statement without an `else` before defining a
|
|
|
|
function caused an error.
|
|
|
|
* Fixed a bug with the `bc` banner and `-q`.
|
|
|
|
* Fixed a bug on Windows where files were not read correctly.
|
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|
|
* Added a command-line flag (`-z`) to make `bc` and `dc` print leading zeroes on
|
|
|
|
numbers `-1 < x < 1`.
|
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|
|
* Added four functions to `lib2.bc` (`plz()`, `plznl()`, `pnlz()`, and
|
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|
|
`pnlznl()`) to allow printing numbers with or without leading zeros, despite
|
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|
|
the use of `-z` or not.
|
|
|
|
* Added builtin functions to query global state like line length, global stacks,
|
|
|
|
and leading zeroes.
|
|
|
|
* Added a command-line flag (`-L`) to disable wrapping when printing numbers.
|
|
|
|
* Improved builds on Windows.
|
|
|
|
|
2021-09-19 12:41:20 +00:00
|
|
|
## 5.0.2
|
|
|
|
|
|
|
|
This is a production release with one fix for a flaky test. If you have not
|
|
|
|
experienced problems with the test suite, you do ***NOT*** need to upgrade.
|
|
|
|
|
|
|
|
The test was one that tested whether `bc` fails gracefully when it can't
|
|
|
|
allocate memory. Unfortunately, there are cases when Linux and FreeBSD lie and
|
|
|
|
pretend to allocate the memory.
|
|
|
|
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|
|
The reason they do this is because a lot of programs don't use all of the memory
|
|
|
|
they allocate, so those OS's usually get away with it.
|
|
|
|
|
|
|
|
However, this `bc` uses all of the memory it allocates (at least at page
|
|
|
|
granularity), so when it tries to use the memory, FreeBSD and Linux kill it.
|
|
|
|
|
|
|
|
This only happens sometimes, however. Other times (on my machine), they do, in
|
|
|
|
fact, refuse the request.
|
|
|
|
|
|
|
|
So I changed the test to not test for that because I think the graceful failure
|
|
|
|
code won't really change much.
|
|
|
|
|
|
|
|
## 5.0.1
|
|
|
|
|
|
|
|
This is a production release with two fixes:
|
|
|
|
|
|
|
|
* Fix for the build on Mac OSX.
|
|
|
|
* Fix for the build on Android.
|
|
|
|
|
|
|
|
Users that do not use those platforms do ***NOT*** need to update.
|
|
|
|
|
vendor/bc: imoport release 5.0.0
This is a new major release with a number of changes and extensions:
- Limited the number of temporary numbers and made the space for them
static so that allocating more space for them cannot fail.
- Allowed integers with non-zero scale to be used with power, places,
and shift operators.
- Added greatest common divisor and least common multiple to lib2.bc.
- Made bc and dc UTF-8 capable.
- Added the ability for users to have bc and dc quit on SIGINT.
- Added the ability for users to disable prompt and TTY mode by
environment variables.
- Added the ability for users to redefine keywords.
- Added dc's modular exponentiation and divmod to bc.
- Added the ability to assign strings to variables and array elements
and pass them to functions in bc.
- Added dc's asciify command and stream printing to bc.
- Added bitwise and, or, xor, left shift, right shift, reverse,
left rotate, right rotate, and mod functions to lib2.bc.
- Added the functions s2u(x) and s2un(x,n), to lib2.bc.
2021-08-09 20:32:55 +00:00
|
|
|
## 5.0.0
|
|
|
|
|
|
|
|
This is a major production release with several changes:
|
|
|
|
|
|
|
|
* Added support for OpenBSD's `pledge()` and `unveil()`.
|
|
|
|
* Fixed print bug where a backslash newline combo was printed even if only one
|
|
|
|
digit was left, something I blindly copied from GNU `bc`, like a fool.
|
|
|
|
* Fixed bugs in the manuals.
|
|
|
|
* Fixed a possible multiplication overflow in power.
|
|
|
|
* Temporary numbers are garbage collected if allocation fails, and the
|
|
|
|
allocation is retried. This is to make `bc` and `dc` more resilient to running
|
|
|
|
out of memory.
|
|
|
|
* Limited the number of temporary numbers and made the space for them static so
|
|
|
|
that allocating more space for them cannot fail.
|
|
|
|
* Allowed integers with non-zero `scale` to be used with power, places, and
|
|
|
|
shift operators.
|
|
|
|
* Added greatest common divisor and least common multiple to `lib2.bc`.
|
|
|
|
* Added `SIGQUIT` handling to history.
|
|
|
|
* Added a command to `dc` (`y`) to get the length of register stacks.
|
|
|
|
* Fixed multi-digit bugs in `lib2.bc`.
|
|
|
|
* Removed the no prompt build option.
|
|
|
|
* Created settings that builders can set defaults for and users can set their
|
|
|
|
preferences for. This includes the `bc` banner, resetting on `SIGINT`, TTY
|
|
|
|
mode, and prompt.
|
|
|
|
* Added history support to Windows.
|
|
|
|
* Fixed bugs with the handling of register names in `dc`.
|
|
|
|
* Fixed bugs with multi-line comments and strings in both calculators.
|
|
|
|
* Added a new error type and message for `dc` when register stacks don't have
|
|
|
|
enough items.
|
|
|
|
* Optimized string allocation.
|
|
|
|
* Made `bc` and `dc` UTF-8 capable.
|
|
|
|
* Fixed a bug with `void` functions.
|
|
|
|
* Fixed a misspelled symbol in `bcl`. This is technically a breaking change,
|
|
|
|
which requires this to be `5.0.0`.
|
|
|
|
* Added the ability for users to get the copyright banner back.
|
|
|
|
* Added the ability for users to have `bc` and `dc` quit on `SIGINT`.
|
|
|
|
* Added the ability for users to disable prompt and TTY mode by environment
|
|
|
|
variables.
|
|
|
|
* Added the ability for users to redefine keywords. This is another reason this
|
|
|
|
is `5.0.0`.
|
|
|
|
* Added `dc`'s modular exponentiation and divmod to `bc`.
|
|
|
|
* Added the ability to assign strings to variables and array elements and pass
|
|
|
|
them to functions in `bc`.
|
|
|
|
* Added `dc`'s asciify command and stream printing to `bc`.
|
|
|
|
* Added a command to `dc` (`Y`) to get the length of an array.
|
|
|
|
* Added a command to `dc` (`,`) to get the depth of the execution stack.
|
|
|
|
* Added bitwise and, or, xor, left shift, right shift, reverse, left rotate,
|
|
|
|
right rotate, and mod functions to `lib2.bc`.
|
|
|
|
* Added the functions `s2u(x)` and `s2un(x,n)`, to `lib2.bc`.
|
|
|
|
|
2021-05-12 05:35:58 +00:00
|
|
|
## 4.0.2
|
|
|
|
|
|
|
|
This is a production release that fixes two bugs:
|
|
|
|
|
|
|
|
1. If no files are used and the first statement on `stdin` is invalid, `scale`
|
|
|
|
would not be set to `20` even if `-l` was used.
|
|
|
|
2. When using history, `bc` failed to respond properly to `SIGSTOP` and
|
|
|
|
`SIGTSTP`.
|
|
|
|
|
2021-04-25 06:36:50 +00:00
|
|
|
## 4.0.1
|
|
|
|
|
|
|
|
This is a production release that only adds one thing: flushing output when it
|
|
|
|
is printed with a print statement.
|
|
|
|
|
2021-04-06 08:44:52 +00:00
|
|
|
## 4.0.0
|
|
|
|
|
|
|
|
This is a production release with many fixes, a new command-line option, and a
|
|
|
|
big surprise:
|
|
|
|
|
|
|
|
* A bug was fixed in `dc`'s `P` command where the item on the stack was *not*
|
|
|
|
popped.
|
|
|
|
* Various bugs in the manuals have been fixed.
|
|
|
|
* A known bug was fixed where history did not interact well with prompts printed
|
|
|
|
by user code without newlines.
|
|
|
|
* A new command-line option, `-R` and `--no-read-prompt` was added to disable
|
|
|
|
just the prompt when using `read()` (`bc`) or `?` (`dc`).
|
|
|
|
* And finally, **official support for Windows was added**.
|
|
|
|
|
|
|
|
The last item is why this is a major version bump.
|
|
|
|
|
|
|
|
Currently, only one set of build options (extra math and prompt enabled, history
|
|
|
|
and NLS/locale support disabled, both calculators enabled) is supported on
|
|
|
|
Windows. However, both debug and release builds are supported.
|
|
|
|
|
|
|
|
In addition, Windows builds are supported for the the library (`bcl`).
|
|
|
|
|
|
|
|
For more details about how to build on Windows, see the [README][5] or the
|
|
|
|
[build manual][13].
|
|
|
|
|
2021-03-19 08:39:56 +00:00
|
|
|
## 3.3.4
|
|
|
|
|
|
|
|
This is a production release that fixes a small bug.
|
|
|
|
|
|
|
|
The bug was that output was not flushed before a `read()` call, so prompts
|
|
|
|
without a newline on the end were not flushed before the `read()` call.
|
|
|
|
|
|
|
|
This is such a tiny bug that users only need to upgrade if they are affected.
|
|
|
|
|
2021-03-05 10:30:11 +00:00
|
|
|
## 3.3.3
|
|
|
|
|
|
|
|
This is a production release with one tweak and fixes for manuals.
|
|
|
|
|
|
|
|
The tweak is that `length(0)` returns `1` instead of `0`. In `3.3.1`, I changed
|
|
|
|
it so `length(0.x)`, where `x` could be any number of digits, returned the
|
|
|
|
`scale`, but `length(0)` still returned `0` because I believe that `0` has `0`
|
|
|
|
significant digits.
|
|
|
|
|
|
|
|
After request of FreeBSD and considering the arguments of a mathematician,
|
|
|
|
compatibility with other `bc`'s, and the expectations of users, I decided to
|
|
|
|
make the change.
|
|
|
|
|
|
|
|
The fixes for manuals fixed a bug where `--` was rendered as `-`.
|
|
|
|
|
|
|
|
## 3.3.2
|
|
|
|
|
|
|
|
This is a production release that fixes a divide-by-zero bug in `root()` in the
|
|
|
|
[extended math library][16]. All previous versions with `root()` have the bug.
|
|
|
|
|
|
|
|
## 3.3.1
|
|
|
|
|
|
|
|
This is a production release that fixes a bug.
|
|
|
|
|
|
|
|
The bug was in the reporting of number length when the value was 0.
|
|
|
|
|
2021-02-17 21:29:31 +00:00
|
|
|
## 3.3.0
|
|
|
|
|
|
|
|
This is a production release that changes one behavior and fixes documentation
|
|
|
|
bugs.
|
|
|
|
|
|
|
|
The changed behavior is the treatment of `-e` and `-f` when given through
|
|
|
|
`BC_ENV_ARGS` or `DC_ENV_ARGS`. Now `bc` and `dc` do not exit when those options
|
|
|
|
(or their equivalents) are given through those environment variables. However,
|
|
|
|
`bc` and `dc` still exit when they or their equivalents are given on the
|
|
|
|
command-line.
|
|
|
|
|
|
|
|
## 3.2.7
|
|
|
|
|
|
|
|
This is a production release that removes a small non-portable shell operation
|
|
|
|
in `configure.sh`. This problem was only noticed on OpenBSD, not FreeBSD or
|
|
|
|
Linux.
|
|
|
|
|
|
|
|
Non-OpenBSD users do ***NOT*** need to upgrade, although NetBSD users may also
|
|
|
|
need to upgrade.
|
|
|
|
|
2021-01-31 19:56:48 +00:00
|
|
|
## 3.2.6
|
|
|
|
|
|
|
|
This is a production release that fixes the build on FreeBSD.
|
|
|
|
|
|
|
|
There was a syntax error in `configure.sh` that the Linux shell did not catch,
|
|
|
|
and FreeBSD depends on the existence of `tests/all.sh`.
|
|
|
|
|
|
|
|
All users that already upgraded to `3.2.5` should update to this release, with
|
|
|
|
my apologies for the poor release of `3.2.5`. Other users should skip `3.2.5` in
|
|
|
|
favor of this version.
|
|
|
|
|
|
|
|
## 3.2.5
|
|
|
|
|
|
|
|
This is a production release that fixes several bugs and adds a couple small
|
|
|
|
things.
|
|
|
|
|
|
|
|
The two most important bugs were bugs that causes `dc` to access memory
|
|
|
|
out-of-bounds (crash in debug builds). This was found by upgrading to `afl++`
|
|
|
|
from `afl`. Both were caused by a failure to distinguish between the same two
|
|
|
|
cases.
|
|
|
|
|
|
|
|
Another bug was the failure to put all of the licenses in the `LICENSE.md` file.
|
|
|
|
|
|
|
|
Third, some warnings by `scan-build` were found and eliminated. This needed one
|
|
|
|
big change: `bc` and `dc` now bail out as fast as possible on fatal errors
|
|
|
|
instead of unwinding the stack.
|
|
|
|
|
|
|
|
Fourth, the pseudo-random number now attempts to seed itself with `/dev/random`
|
|
|
|
if `/dev/urandom` fails.
|
|
|
|
|
|
|
|
Finally, this release has a few quality-of-life changes to the build system. The
|
|
|
|
usage should not change at all; the only thing that changed was making sure the
|
|
|
|
`Makefile.in` was written to rebuild properly when headers changed and to not
|
|
|
|
rebuild when not necessary.
|
|
|
|
|
2020-12-27 20:53:09 +00:00
|
|
|
## 3.2.4
|
|
|
|
|
|
|
|
This is a production release that fixes a warning on `gcc` 6 or older, which
|
|
|
|
does not have an attribute that is used.
|
|
|
|
|
|
|
|
Users do ***NOT*** need to upgrade if they don't use `gcc` 6 or older.
|
|
|
|
|
2020-12-06 11:38:46 +00:00
|
|
|
## 3.2.3
|
|
|
|
|
|
|
|
This is a production release that fixes a bug in `gen/strgen.sh`. I recently
|
|
|
|
changed `gen/strgen.c`, but I did not change `gen/strgen.sh`.
|
|
|
|
|
|
|
|
Users that do not use `gen/strgen.sh` do not need to upgrade.
|
|
|
|
|
|
|
|
## 3.2.2
|
|
|
|
|
|
|
|
This is a production release that fixes a portability bug in `configure.sh`. The
|
|
|
|
bug was using the GNU `find` extension `-wholename`.
|
|
|
|
|
|
|
|
## 3.2.1
|
|
|
|
|
|
|
|
This is a production release that has one fix for `bcl(3)`. It is technically
|
|
|
|
not a bug fix since the behavior is undefined, but the `BclNumber`s that
|
|
|
|
`bcl_divmod()` returns will be set to `BCL_ERROR_INVALID_NUM` if there is an
|
|
|
|
error. Previously, they were not set.
|
|
|
|
|
2020-11-26 17:27:07 +00:00
|
|
|
## 3.2.0
|
|
|
|
|
|
|
|
This is a production release that has one bug fix and a major addition.
|
|
|
|
|
|
|
|
The bug fix was a missing `auto` variable in the bessel `j()` function in the
|
|
|
|
math library.
|
|
|
|
|
|
|
|
The major addition is a way to build a version of `bc`'s math code as a library.
|
|
|
|
This is done with the `-a` option to `configure.sh`. The API for the library can
|
|
|
|
be read in `./manuals/bcl.3.md` or `man bcl` once the library is installed with
|
|
|
|
`make install`.
|
|
|
|
|
|
|
|
This library was requested by developers before I even finished version 1.0, but
|
|
|
|
I could not figure out how to do it until now.
|
|
|
|
|
|
|
|
If the library has API breaking changes, the major version of `bc` will be
|
|
|
|
incremented.
|
|
|
|
|
2020-10-01 15:40:24 +00:00
|
|
|
## 3.1.6
|
|
|
|
|
|
|
|
This is a production release that fixes a new warning from Clang 12 for FreeBSD
|
|
|
|
and also removes some possible undefined behavior found by UBSan that compilers
|
|
|
|
did not seem to take advantage of.
|
|
|
|
|
|
|
|
Users do ***NOT*** need to upgrade, if they do not want to.
|
|
|
|
|
2020-08-05 10:07:43 +00:00
|
|
|
## 3.1.5
|
|
|
|
|
|
|
|
This is a production release that fixes the Chinese locales (which caused `bc`
|
|
|
|
to crash) and a crash caused by `bc` executing code when it should not have been
|
|
|
|
able to.
|
|
|
|
|
|
|
|
***ALL USERS SHOULD UPGRADE.***
|
|
|
|
|
2020-08-03 18:55:39 +00:00
|
|
|
## 3.1.4
|
|
|
|
|
|
|
|
This is a production release that fixes one bug, changes two behaviors, and
|
|
|
|
removes one environment variable.
|
|
|
|
|
|
|
|
The bug is like the one in the last release except it applies if files are being
|
|
|
|
executed. I also made the fix more general.
|
|
|
|
|
|
|
|
The behavior that was changed is that `bc` now exits when given `-e`, `-f`,
|
|
|
|
`--expression` or `--file`. However, if the last one of those is `-f-` (using
|
|
|
|
`stdin` as the file), `bc` does not exit. If `-f-` exists and is not the last of
|
|
|
|
the `-e` and `-f` options (and equivalents), `bc` gives a fatal error and exits.
|
|
|
|
|
|
|
|
Next, I removed the `BC_EXPR_EXIT` and `DC_EXPR_EXIT` environment variables
|
|
|
|
since their use is not needed with the behavior change.
|
|
|
|
|
|
|
|
Finally, I made it so `bc` does not print the header, though the `-q` and
|
|
|
|
`--quiet` options were kept for compatibility with GNU `bc`.
|
|
|
|
|
2020-07-10 11:00:40 +00:00
|
|
|
## 3.1.3
|
|
|
|
|
|
|
|
This is a production release that fixes one minor bug: if `bc` was invoked like
|
|
|
|
the following, it would error:
|
|
|
|
|
|
|
|
```
|
|
|
|
echo "if (1 < 3) 1" | bc
|
|
|
|
```
|
|
|
|
|
|
|
|
Unless users run into this bug, they do not need to upgrade, but it is suggested
|
|
|
|
that they do.
|
|
|
|
|
|
|
|
## 3.1.2
|
|
|
|
|
|
|
|
This is a production release that adds a way to install *all* locales. Users do
|
|
|
|
***NOT*** need to upgrade.
|
|
|
|
|
|
|
|
For package maintainers wishing to make use of the change, just pass `-l` to
|
|
|
|
`configure.sh`.
|
|
|
|
|
2020-07-07 07:02:33 +00:00
|
|
|
## 3.1.1
|
|
|
|
|
|
|
|
This is a production release that adds two Spanish locales. Users do ***NOT***
|
|
|
|
need to upgrade, unless they want those locales.
|
|
|
|
|
|
|
|
## 3.1.0
|
|
|
|
|
|
|
|
This is a production release that adjusts one behavior, fixes eight bugs, and
|
|
|
|
improves manpages for FreeBSD. Because this release fixes bugs, **users and
|
|
|
|
package maintainers should update to this version as soon as possible**.
|
|
|
|
|
|
|
|
The behavior that was adjusted was how code from the `-e` and `-f` arguments
|
|
|
|
(and equivalents) were executed. They used to be executed as one big chunk, but
|
|
|
|
in this release, they are now executed line-by-line.
|
|
|
|
|
|
|
|
The first bug fix in how output to `stdout` was handled in `SIGINT`. If a
|
|
|
|
`SIGINT` came in, the `stdout` buffer was not correctly flushed. In fact, a
|
|
|
|
clean-up function was not getting called. This release fixes that bug.
|
|
|
|
|
|
|
|
The second bug is in how `dc` handled input from `stdin`. This affected `bc` as
|
|
|
|
well since it was a mishandling of the `stdin` buffer.
|
|
|
|
|
|
|
|
The third fixed bug was that `bc` and `dc` could `abort()` (in debug mode) when
|
|
|
|
receiving a `SIGTERM`. This one was a race condition with pushing and popping
|
|
|
|
items onto and out of vectors.
|
|
|
|
|
|
|
|
The fourth bug fixed was that `bc` could leave extra items on the stack and
|
|
|
|
thus, not properly clean up some memory. (The memory would still get
|
|
|
|
`free()`'ed, but it would not be `free()`'ed when it could have been.)
|
|
|
|
|
|
|
|
The next two bugs were bugs in `bc`'s parser that caused crashes when executing
|
|
|
|
the resulting code.
|
|
|
|
|
|
|
|
The last two bugs were crashes in `dc` that resulted from mishandling of
|
|
|
|
strings.
|
|
|
|
|
|
|
|
The manpage improvement was done by switching from [ronn][20] to [Pandoc][21] to
|
|
|
|
generate manpages. Pandoc generates much cleaner manpages and doesn't leave
|
|
|
|
blank lines where they shouldn't be.
|
|
|
|
|
|
|
|
## 3.0.3
|
|
|
|
|
|
|
|
This is a production release that adds one new feature: specific manpages.
|
|
|
|
|
|
|
|
Before this release, `bc` and `dc` only used one manpage each that referred to
|
|
|
|
various build options. This release changes it so there is one manpage set per
|
|
|
|
relevant build type. Each manual only has information about its particular
|
|
|
|
build, and `configure.sh` selects the correct set for install.
|
|
|
|
|
Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
|
|
|
## 3.0.2
|
|
|
|
|
|
|
|
This is a production release that adds `utf8` locale symlinks and removes an
|
|
|
|
unused `auto` variable from the `ceil()` function in the [extended math
|
|
|
|
library][16].
|
|
|
|
|
|
|
|
Users do ***NOT*** need to update unless they want the locales.
|
|
|
|
|
|
|
|
## 3.0.1
|
|
|
|
|
|
|
|
This is a production release with two small changes. Users do ***NOT*** need to
|
|
|
|
upgrade to this release; however, if they haven't upgraded to `3.0.0` yet, it
|
|
|
|
may be worthwhile to upgrade to this release.
|
|
|
|
|
|
|
|
The first change is fixing a compiler warning on FreeBSD with strict warnings
|
|
|
|
on.
|
|
|
|
|
|
|
|
The second change is to make the new implementation of `ceil()` in `lib2.bc`
|
|
|
|
much more efficient.
|
|
|
|
|
|
|
|
## 3.0.0
|
|
|
|
|
|
|
|
*Notes for package maintainers:*
|
|
|
|
|
|
|
|
*First, the `2.7.0` release series saw a change in the option parsing. This made
|
|
|
|
me change one error message and add a few others. The error message that was
|
|
|
|
changed removed one format specifier. This means that `printf()` will seqfault
|
|
|
|
on old locale files. Unfortunately, `bc` cannot use any locale files except the
|
|
|
|
global ones that are already installed, so it will use the previous ones while
|
|
|
|
running tests during install. **If `bc` segfaults while running arg tests when
|
|
|
|
updating, it is because the global locale files have not been replaced. Make
|
|
|
|
sure to either prevent the test suite from running on update or remove the old
|
2020-07-07 07:02:33 +00:00
|
|
|
locale files before updating.** (Removing the locale files can be done with
|
vendor/bc: imoport release 5.0.0
This is a new major release with a number of changes and extensions:
- Limited the number of temporary numbers and made the space for them
static so that allocating more space for them cannot fail.
- Allowed integers with non-zero scale to be used with power, places,
and shift operators.
- Added greatest common divisor and least common multiple to lib2.bc.
- Made bc and dc UTF-8 capable.
- Added the ability for users to have bc and dc quit on SIGINT.
- Added the ability for users to disable prompt and TTY mode by
environment variables.
- Added the ability for users to redefine keywords.
- Added dc's modular exponentiation and divmod to bc.
- Added the ability to assign strings to variables and array elements
and pass them to functions in bc.
- Added dc's asciify command and stream printing to bc.
- Added bitwise and, or, xor, left shift, right shift, reverse,
left rotate, right rotate, and mod functions to lib2.bc.
- Added the functions s2u(x) and s2un(x,n), to lib2.bc.
2021-08-09 20:32:55 +00:00
|
|
|
`make uninstall` or by running the [`locale_uninstall.sh`][22] script.) Once
|
|
|
|
this is done, `bc` should install without problems.*
|
Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
|
|
|
|
|
|
|
*Second, **the option to build without signal support has been removed**. See
|
|
|
|
below for the reasons why.*
|
|
|
|
|
|
|
|
This is a production release with some small bug fixes, a few improvements,
|
|
|
|
three major bug fixes, and a complete redesign of `bc`'s error and signal
|
|
|
|
handling. **Users and package maintainers should update to this version as soon
|
|
|
|
as possible.**
|
|
|
|
|
|
|
|
The first major bug fix was in how `bc` executed files. Previously, a whole file
|
|
|
|
was parsed before it was executed, but if a function is defined *after* code,
|
|
|
|
especially if the function definition was actually a redefinition, and the code
|
|
|
|
before the definition referred to the previous function, this `bc` would replace
|
|
|
|
the function before executing any code. The fix was to make sure that all code
|
|
|
|
that existed before a function definition was executed.
|
|
|
|
|
|
|
|
The second major bug fix was in `bc`'s `lib2.bc`. The `ceil()` function had a
|
|
|
|
bug where a `0` in the decimal place after the truncation position, caused it to
|
|
|
|
output the wrong numbers if there was any non-zero digit after.
|
|
|
|
|
|
|
|
The third major bug is that when passing parameters to functions, if an
|
|
|
|
expression included an array (not an array element) as a parameter, it was
|
|
|
|
accepted, when it should have been rejected. It is now correctly rejected.
|
|
|
|
|
|
|
|
Beyond that, this `bc` got several improvements that both sped it up, improved
|
|
|
|
the handling of signals, and improved the error handling.
|
|
|
|
|
|
|
|
First, the requirements for `bc` were pushed back to POSIX 2008. `bc` uses one
|
|
|
|
function, `strdup()`, which is not in POSIX 2001, and it is in the X/Open System
|
|
|
|
Interfaces group 2001. It is, however, in POSIX 2008, and since POSIX 2008 is
|
|
|
|
old enough to be supported anywhere that I care, that should be the requirement.
|
|
|
|
|
|
|
|
Second, the BcVm global variable was put into `bss`. This actually slightly
|
|
|
|
reduces the size of the executable from a massive code shrink, and it will stop
|
|
|
|
`bc` from allocating a large set of memory when `bc` starts.
|
|
|
|
|
|
|
|
Third, the default Karatsuba length was updated from 64 to 32 after making the
|
|
|
|
optimization changes below, since 32 is going to be better than 64 after the
|
|
|
|
changes.
|
|
|
|
|
|
|
|
Fourth, Spanish translations were added.
|
|
|
|
|
|
|
|
Fifth, the interpreter received a speedup to make performance on non-math-heavy
|
|
|
|
scripts more competitive with GNU `bc`. While improvements did, in fact, get it
|
|
|
|
much closer (see the [benchmarks][19]), it isn't quite there.
|
|
|
|
|
|
|
|
There were several things done to speed up the interpreter:
|
|
|
|
|
|
|
|
First, several small inefficiencies were removed. These inefficiencies included
|
|
|
|
calling the function `bc_vec_pop(v)` twice instead of calling
|
|
|
|
`bc_vec_npop(v, 2)`. They also included an extra function call for checking the
|
|
|
|
size of the stack and checking the size of the stack more than once on several
|
|
|
|
operations.
|
|
|
|
|
|
|
|
Second, since the current `bc` function is the one that stores constants and
|
|
|
|
strings, the program caches pointers to the current function's vectors of
|
|
|
|
constants and strings to prevent needing to grab the current function in order
|
|
|
|
to grab a constant or a string.
|
|
|
|
|
|
|
|
Third, `bc` tries to reuse `BcNum`'s (the internal representation of
|
|
|
|
arbitary-precision numbers). If a `BcNum` has the default capacity of
|
|
|
|
`BC_NUM_DEF_SIZE` (32 on 64-bit and 16 on 32-bit) when it is freed, it is added
|
|
|
|
to a list of available `BcNum`'s. And then, when a `BcNum` is allocated with a
|
|
|
|
capacity of `BC_NUM_DEF_SIZE` and any `BcNum`'s exist on the list of reusable
|
|
|
|
ones, one of those ones is grabbed instead.
|
|
|
|
|
|
|
|
In order to support these changes, the `BC_NUM_DEF_SIZE` was changed. It used to
|
|
|
|
be 16 bytes on all systems, but it was changed to more closely align with the
|
|
|
|
minimum allocation size on Linux, which is either 32 bytes (64-bit musl), 24
|
|
|
|
bytes (64-bit glibc), 16 bytes (32-bit musl), or 12 bytes (32-bit glibc). Since
|
|
|
|
these are the minimum allocation sizes, these are the sizes that would be
|
|
|
|
allocated anyway, making it worth it to just use the whole space, so the value
|
|
|
|
of `BC_NUM_DEF_SIZE` on 64-bit systems was changed to 32 bytes.
|
|
|
|
|
|
|
|
On top of that, at least on 64-bit, `BC_NUM_DEF_SIZE` supports numbers with
|
|
|
|
either 72 integer digits or 45 integer digits and 27 fractional digits. This
|
|
|
|
should be more than enough for most cases since `bc`'s default `scale` values
|
|
|
|
are 0 or 20, meaning that, by default, it has at most 20 fractional digits. And
|
|
|
|
45 integer digits are *a lot*; it's enough to calculate the amount of mass in
|
|
|
|
the Milky Way galaxy in kilograms. Also, 72 digits is enough to calculate the
|
|
|
|
diameter of the universe in Planck lengths.
|
|
|
|
|
|
|
|
(For 32-bit, these numbers are either 32 integer digits or 12 integer digits and
|
|
|
|
20 fractional digits. These are also quite big, and going much bigger on a
|
vendor/bc: imoport release 5.0.0
This is a new major release with a number of changes and extensions:
- Limited the number of temporary numbers and made the space for them
static so that allocating more space for them cannot fail.
- Allowed integers with non-zero scale to be used with power, places,
and shift operators.
- Added greatest common divisor and least common multiple to lib2.bc.
- Made bc and dc UTF-8 capable.
- Added the ability for users to have bc and dc quit on SIGINT.
- Added the ability for users to disable prompt and TTY mode by
environment variables.
- Added the ability for users to redefine keywords.
- Added dc's modular exponentiation and divmod to bc.
- Added the ability to assign strings to variables and array elements
and pass them to functions in bc.
- Added dc's asciify command and stream printing to bc.
- Added bitwise and, or, xor, left shift, right shift, reverse,
left rotate, right rotate, and mod functions to lib2.bc.
- Added the functions s2u(x) and s2un(x,n), to lib2.bc.
2021-08-09 20:32:55 +00:00
|
|
|
32-bit system seems a little pointless since 12 digits is just under a trillion
|
Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
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and 20 fractional digits is still enough for about any use since `10^-20` light
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years is just under a millimeter.)
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All of this together means that for ordinary uses, and even uses in scientific
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work, the default number size will be all that is needed, which means that
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nearly all, if not all, numbers will be reused, relieving pressure on the system
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allocator.
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I did several experiments to find the changes that had the most impact,
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especially with regard to reusing `BcNum`'s. One was putting `BcNum`'s into
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buckets according to their capacity in powers of 2 up to 512. That performed
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worse than `bc` did in `2.7.2`. Another was putting any `BcNum` on the reuse
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list that had a capacity of `BC_NUM_DEF_SIZE * 2` and reusing them for `BcNum`'s
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that requested `BC_NUM_DEF_SIZE`. This did reduce the amount of time spent, but
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it also spent a lot of time in the system allocator for an unknown reason. (When
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using `strace`, a bunch more `brk` calls showed up.) Just reusing `BcNum`'s that
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had exactly `BC_NUM_DEF_SIZE` capacity spent the smallest amount of time in both
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user and system time. This makes sense, especially with the changes to make
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`BC_NUM_DEF_SIZE` bigger on 64-bit systems, since the vast majority of numbers
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will only ever use numbers with a size less than or equal to `BC_NUM_DEF_SIZE`.
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Last of all, `bc`'s signal handling underwent a complete redesign. (This is the
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reason that this version is `3.0.0` and not `2.8.0`.) The change was to move
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from a polling approach to signal handling to an interrupt-based approach.
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Previously, every single loop condition had a check for signals. I suspect that
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this could be expensive when in tight loops.
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Now, the signal handler just uses `longjmp()` (actually `siglongjmp()`) to start
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an unwinding of the stack until it is stopped or the stack is unwound to
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`main()`, which just returns. If `bc` is currently executing code that cannot be
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safely interrupted (according to POSIX), then signals are "locked." The signal
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handler checks if the lock is taken, and if it is, it just sets the status to
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indicate that a signal arrived. Later, when the signal lock is released, the
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status is checked to see if a signal came in. If so, the stack unwinding starts.
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This design eliminates polling in favor of maintaining a stack of `jmp_buf`'s.
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This has its own performance implications, but it gives better interaction. And
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the cost of pushing and popping a `jmp_buf` in a function is paid at most twice.
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Most functions do not pay that price, and most of the rest only pay it once.
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(There are only some 3 functions in `bc` that push and pop a `jmp_buf` twice.)
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As a side effect of this change, I had to eliminate the use of `stdio.h` in `bc`
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because `stdio` does not play nice with signals and `longjmp()`. I implemented
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custom I/O buffer code that takes a fraction of the size. This means that static
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builds will be smaller, but non-static builds will be bigger, though they will
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have less linking time.
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This change is also good because my history implementation was already bypassing
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`stdio` for good reasons, and unifying the architecture was a win.
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Another reason for this change is that my `bc` should *always* behave correctly
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in the presence of signals like `SIGINT`, `SIGTERM`, and `SIGQUIT`. With the
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addition of my own I/O buffering, I needed to also make sure that the buffers
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were correctly flushed even when such signals happened.
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For this reason, I **removed the option to build without signal support**.
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As a nice side effect of this change, the error handling code could be changed
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to take advantage of the stack unwinding that signals used. This means that
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signals and error handling use the same code paths, which means that the stack
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unwinding is well-tested. (Errors are tested heavily in the test suite.)
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It also means that functions do not need to return a status code that
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***every*** caller needs to check. This eliminated over 100 branches that simply
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checked return codes and then passed that return code up the stack if necessary.
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The code bloat savings from this is at least 1700 bytes on `x86_64`, *before*
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taking into account the extra code from removing `stdio.h`.
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## 2.7.2
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This is a production release with one major bug fix.
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The `length()` built-in function can take either a number or an array. If it
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takes an array, it returns the length of the array. Arrays can be passed by
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reference. The bug is that the `length()` function would not properly
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dereference arrays that were references. This is a bug that affects all users.
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**ALL USERS SHOULD UPDATE `bc`**.
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## 2.7.1
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This is a production release with fixes for new locales and fixes for compiler
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warnings on FreeBSD.
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## 2.7.0
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This is a production release with a bug fix for Linux, new translations, and new
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features.
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Bug fixes:
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* Option parsing in `BC_ENV_ARGS` was broken on Linux in 2.6.1 because `glibc`'s
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`getopt_long()` is broken. To get around that, and to support long options on
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every platform, an adapted version of [`optparse`][17] was added. Now, `bc`
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does not even use `getopt()`.
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* Parsing `BC_ENV_ARGS` with quotes now works. It isn't the smartest, but it
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does the job if there are spaces in file names.
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The following new languages are supported:
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* Dutch
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* Polish
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* Russian
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* Japanes
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* Simplified Chinese
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All of these translations were generated using [DeepL][18], so improvements are
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welcome.
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There is only one new feature: **`bc` now has a built-in pseudo-random number
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generator** (PRNG).
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The PRNG is seeded, making it useful for applications where
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`/dev/urandom` does not work because output needs to be reproducible. However,
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it also uses `/dev/urandom` to seed itself by default, so it will start with a
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good seed by default.
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It also outputs 32 bits on 32-bit platforms and 64 bits on 64-bit platforms, far
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better than the 15 bits of C's `rand()` and `bash`'s `$RANDOM`.
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In addition, the PRNG can take a bound, and when it gets a bound, it
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automatically adjusts to remove bias. It can also generate numbers of arbitrary
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size. (As of the time of release, the largest pseudo-random number generated by
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this `bc` was generated with a bound of `2^(2^20)`.)
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***IMPORTANT: read the [`bc` manual][9] and the [`dc` manual][10] to find out
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exactly what guarantees the PRNG provides. The underlying implementation is not
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guaranteed to stay the same, but the guarantees that it provides are guaranteed
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to stay the same regardless of the implementation.***
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On top of that, four functions were added to `bc`'s [extended math library][16]
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to make using the PRNG easier:
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* `frand(p)`: Generates a number between `[0,1)` to `p` decimal places.
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* `ifrand(i, p)`: Generates an integer with bound `i` and adds it to `frand(p)`.
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* `srand(x)`: Randomizes the sign of `x`. In other words, it flips the sign of
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`x` with probability `0.5`.
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* `brand()`: Returns a random boolean value (either `0` or `1`).
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## 2.6.1
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This is a production release with a bug fix for FreeBSD.
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The bug was that when `bc` was built without long options, it would give a fatal
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error on every run. This was caused by a mishandling of `optind`.
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## 2.6.0
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This release is a production release ***with no bugfixes***. If you do not want
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to upgrade, you don't have to.
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No source code changed; the only thing that changed was `lib2.bc`.
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This release adds one function to the [extended math library][16]: `p(x, y)`,
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which calculates `x` to the power of `y`, whether or not `y` is an integer. (The
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`^` operator can only accept integer powers.)
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This release also includes a couple of small tweaks to the [extended math
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library][16], mostly to fix returning numbers with too high of `scale`.
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## 2.5.3
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This release is a production release which addresses inconsistencies in the
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Portuguese locales. No `bc` code was changed.
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The issues were that the ISO files used different naming, and also that the
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files that should have been symlinks were not. I did not catch that because
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GitHub rendered them the exact same way.
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## 2.5.2
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This release is a production release.
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No code was changed, but the build system was changed to allow `CFLAGS` to be
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given to `CC`, like this:
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```
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CC="gcc -O3 -march=native" ./configure.sh
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```
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If this happens, the flags are automatically put into `CFLAGS`, and the compiler
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is set appropriately. In the example above this means that `CC` will be "gcc"
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and `CFLAGS` will be "-O3 -march=native".
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This behavior was added to conform to GNU autotools practices.
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## 2.5.1
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This is a production release which addresses portability concerns discovered
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in the `bc` build system. No `bc` code was changed.
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* Support for Solaris SPARC and AIX were added.
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* Minor documentations edits were performed.
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* An option for `configure.sh` was added to disable long options if
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`getopt_long()` is missing.
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## 2.5.0
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This is a production release with new translations. No code changed.
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The translations were contributed by [bugcrazy][15], and they are for
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Portuguese, both Portugal and Brazil locales.
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## 2.4.0
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This is a production release primarily aimed at improving `dc`.
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* A couple of copy and paste errors in the [`dc` manual][10] were fixed.
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* `dc` startup was optimized by making sure it didn't have to set up `bc`-only
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things.
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* The `bc` `&&` and `||` operators were made available to `dc` through the `M`
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and `m` commands, respectively.
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* `dc` macros were changed to be tail call-optimized.
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The last item, tail call optimization, means that if the last thing in a macro
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is a call to another macro, then the old macro is popped before executing the
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new macro. This change was made to stop `dc` from consuming more and more memory
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as macros are executed in a loop.
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The `q` and `Q` commands still respect the "hidden" macros by way of recording
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how many macros were removed by tail call optimization.
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## 2.3.2
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This is a production release meant to fix warnings in the Gentoo `ebuild` by
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making it possible to disable binary stripping. Other users do *not* need to
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upgrade.
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## 2.3.1
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This is a production release. It fixes a bug that caused `-1000000000 < -1` to
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return `0`. This only happened with negative numbers and only if the value on
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the left was more negative by a certain amount. That said, this bug *is* a bad
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bug, and needs to be fixed.
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**ALL USERS SHOULD UPDATE `bc`**.
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## 2.3.0
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This is a production release with changes to the build system.
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## 2.2.0
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This release is a production release. It only has new features and performance
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improvements.
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1. The performance of `sqrt(x)` was improved.
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2. The new function `root(x, n)` was added to the extended math library to
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calculate `n`th roots.
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3. The new function `cbrt(x)` was added to the extended math library to
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calculate cube roots.
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## 2.1.3
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This is a non-critical release; it just changes the build system, and in
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non-breaking ways:
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1. Linked locale files were changed to link to their sources with a relative
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link.
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2. A bug in `configure.sh` that caused long option parsing to fail under `bash`
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was fixed.
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## 2.1.2
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This release is not a critical release.
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1. A few codes were added to history.
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2. Multiplication was optimized a bit more.
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3. Addition and subtraction were both optimized a bit more.
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## 2.1.1
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This release contains a fix for the test suite made for Linux from Scratch: now
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the test suite prints `pass` when a test is passed.
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Other than that, there is no change in this release, so distros and other users
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do not need to upgrade.
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## 2.1.0
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This release is a production release.
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The following bugs were fixed:
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1. A `dc` bug that caused stack mishandling was fixed.
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2. A warning on OpenBSD was fixed.
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3. Bugs in `ctrl+arrow` operations in history were fixed.
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4. The ability to paste multiple lines in history was added.
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5. A `bc` bug, mishandling of array arguments to functions, was fixed.
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6. A crash caused by freeing the wrong pointer was fixed.
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7. A `dc` bug where strings, in a rare case, were mishandled in parsing was
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fixed.
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In addition, the following changes were made:
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1. Division was slightly optimized.
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2. An option was added to the build to disable printing of prompts.
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3. The special case of empty arguments is now handled. This is to prevent
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errors in scripts that end up passing empty arguments.
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4. A harmless bug was fixed. This bug was that, with the pop instructions
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(mostly) removed (see below), `bc` would leave extra values on its stack for
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`void` functions and in a few other cases. These extra items would not
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affect anything put on the stack and would not cause any sort of crash or
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even buggy behavior, but they would cause `bc` to take more memory than it
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needed.
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On top of the above changes, the following optimizations were added:
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1. The need for pop instructions in `bc` was removed.
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2. Extra tests on every iteration of the interpreter loop were removed.
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3. Updating function and code pointers on every iteration of the interpreter
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loop was changed to only updating them when necessary.
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4. Extra assignments to pointers were removed.
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Altogether, these changes sped up the interpreter by around 2x.
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***NOTE***: This is the last release with new features because this `bc` is now
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considered complete. From now on, only bug fixes and new translations will be
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added to this `bc`.
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## 2.0.3
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This is a production, bug-fix release.
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Two bugs were fixed in this release:
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1. A rare and subtle signal handling bug was fixed.
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2. A misbehavior on `0` to a negative power was fixed.
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The last bug bears some mentioning.
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When I originally wrote power, I did not thoroughly check its error cases;
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instead, I had it check if the first number was `0` and then if so, just return
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`0`. However, `0` to a negative power means that `1` will be divided by `0`,
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which is an error.
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I caught this, but only after I stopped being cocky. You see, sometime later, I
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had noticed that GNU `bc` returned an error, correctly, but I thought it was
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wrong simply because that's not what my `bc` did. I saw it again later and had a
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double take. I checked for real, finally, and found out that my `bc` was wrong
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all along.
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That was bad on me. But the bug was easy to fix, so it is fixed now.
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There are two other things in this release:
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|
|
|
1. Subtraction was optimized by [Stefan Eßer][14].
|
|
|
|
2. Division was also optimized, also by Stefan Eßer.
|
|
|
|
|
|
|
|
## 2.0.2
|
|
|
|
|
|
|
|
This release contains a fix for a possible overflow in the signal handling. I
|
|
|
|
would be surprised if any users ran into it because it would only happen after 2
|
|
|
|
billion (`2^31-1`) `SIGINT`'s, but I saw it and had to fix it.
|
|
|
|
|
|
|
|
## 2.0.1
|
|
|
|
|
|
|
|
This release contains very few things that will apply to any users.
|
|
|
|
|
|
|
|
1. A slight bug in `dc`'s interactive mode was fixed.
|
|
|
|
2. A bug in the test suite that was only triggered on NetBSD was fixed.
|
|
|
|
3. **The `-P`/`--no-prompt` option** was added for users that do not want a
|
|
|
|
prompt.
|
|
|
|
4. A `make check` target was added as an alias for `make test`.
|
|
|
|
5. `dc` got its own read prompt: `?> `.
|
|
|
|
|
|
|
|
## 2.0.0
|
|
|
|
|
|
|
|
This release is a production release.
|
|
|
|
|
|
|
|
This release is also a little different from previous releases. From here on
|
|
|
|
out, I do not plan on adding any more features to this `bc`; I believe that it
|
|
|
|
is complete. However, there may be bug fix releases in the future, if I or any
|
|
|
|
others manage to find bugs.
|
|
|
|
|
|
|
|
This release has only a few new features:
|
|
|
|
|
|
|
|
1. `atan2(y, x)` was added to the extended math library as both `a2(y, x)` and
|
|
|
|
`atan2(y, x)`.
|
|
|
|
2. Locales were fixed.
|
|
|
|
3. A **POSIX shell-compatible script was added as an alternative to compiling
|
|
|
|
`gen/strgen.c`** on a host machine. More details about making the choice
|
|
|
|
between the two can be found by running `./configure.sh --help` or reading
|
|
|
|
the [build manual][13].
|
|
|
|
4. Multiplication was optimized by using **diagonal multiplication**, rather
|
|
|
|
than straight brute force.
|
|
|
|
5. The `locale_install.sh` script was fixed.
|
|
|
|
6. `dc` was given the ability to **use the environment variable
|
|
|
|
`DC_ENV_ARGS`**.
|
|
|
|
7. `dc` was also given the ability to **use the `-i` or `--interactive`**
|
|
|
|
options.
|
|
|
|
8. Printing the prompt was fixed so that it did not print when it shouldn't.
|
|
|
|
9. Signal handling was fixed.
|
|
|
|
10. **Handling of `SIGTERM` and `SIGQUIT`** was fixed.
|
|
|
|
11. The **built-in functions `maxibase()`, `maxobase()`, and `maxscale()`** (the
|
|
|
|
commands `T`, `U`, `V` in `dc`, respectively) were added to allow scripts to
|
|
|
|
query for the max allowable values of those globals.
|
|
|
|
12. Some incompatibilities with POSIX were fixed.
|
|
|
|
|
|
|
|
In addition, this release is `2.0.0` for a big reason: the internal format for
|
|
|
|
numbers changed. They used to be a `char` array. Now, they are an array of
|
|
|
|
larger integers, packing more decimal digits into each integer. This has
|
|
|
|
delivered ***HUGE*** performance improvements, especially for multiplication,
|
|
|
|
division, and power.
|
|
|
|
|
|
|
|
This `bc` should now be the fastest `bc` available, but I may be wrong.
|
|
|
|
|
|
|
|
## 1.2.8
|
|
|
|
|
|
|
|
This release contains a fix for a harmless bug (it is harmless in that it still
|
|
|
|
works, but it just copies extra data) in the [`locale_install.sh`][12] script.
|
|
|
|
|
|
|
|
## 1.2.7
|
|
|
|
|
|
|
|
This version contains fixes for the build on Arch Linux.
|
|
|
|
|
|
|
|
## 1.2.6
|
|
|
|
|
|
|
|
This release removes the use of `local` in shell scripts because it's not POSIX
|
|
|
|
shell-compatible, and also updates a man page that should have been updated a
|
|
|
|
long time ago but was missed.
|
|
|
|
|
|
|
|
## 1.2.5
|
|
|
|
|
|
|
|
This release contains some missing locale `*.msg` files.
|
|
|
|
|
|
|
|
## 1.2.4
|
|
|
|
|
|
|
|
This release contains a few bug fixes and new French translations.
|
|
|
|
|
|
|
|
## 1.2.3
|
|
|
|
|
|
|
|
This release contains a fix for a bug: use of uninitialized data. Such data was
|
|
|
|
only used when outputting an error message, but I am striving for perfection. As
|
|
|
|
Michelangelo said, "Trifles make perfection, and perfection is no trifle."
|
|
|
|
|
|
|
|
## 1.2.2
|
|
|
|
|
|
|
|
This release contains fixes for OpenBSD.
|
|
|
|
|
|
|
|
## 1.2.1
|
|
|
|
|
|
|
|
This release contains bug fixes for some rare bugs.
|
|
|
|
|
|
|
|
## 1.2.0
|
|
|
|
|
|
|
|
This is a production release.
|
|
|
|
|
|
|
|
There have been several changes since `1.1.0`:
|
|
|
|
|
|
|
|
1. The build system had some changes.
|
|
|
|
2. Locale support has been added. (Patches welcome for translations.)
|
|
|
|
3. **The ability to turn `ibase`, `obase`, and `scale` into stacks** was added
|
|
|
|
with the `-g` command-line option. (See the [`bc` manual][9] for more
|
|
|
|
details.)
|
|
|
|
4. Support for compiling on Mac OSX out of the box was added.
|
|
|
|
5. The extended math library got `t(x)`, `ceil(x)`, and some aliases.
|
|
|
|
6. The extended math library also got `r2d(x)` (for converting from radians to
|
|
|
|
degrees) and `d2r(x)` (for converting from degrees to radians). This is to
|
|
|
|
allow using degrees with the standard library.
|
|
|
|
7. Both calculators now accept numbers in **scientific notation**. See the
|
|
|
|
[`bc` manual][9] and the [`dc` manual][10] for details.
|
|
|
|
8. Both calculators can **output in either scientific or engineering
|
|
|
|
notation**. See the [`bc` manual][9] and the [`dc` manual][10] for details.
|
|
|
|
9. Some inefficiencies were removed.
|
|
|
|
10. Some bugs were fixed.
|
|
|
|
11. Some bugs in the extended library were fixed.
|
|
|
|
12. Some defects from [Coverity Scan][11] were fixed.
|
|
|
|
|
|
|
|
## 1.1.4
|
|
|
|
|
|
|
|
This release contains a fix to the build system that allows it to build on older
|
|
|
|
versions of `glibc`.
|
|
|
|
|
|
|
|
## 1.1.3
|
|
|
|
|
|
|
|
This release contains a fix for a bug in the test suite where `bc` tests and
|
|
|
|
`dc` tests could not be run in parallel.
|
|
|
|
|
|
|
|
## 1.1.2
|
|
|
|
|
|
|
|
This release has a fix for a history bug; the down arrow did not work.
|
|
|
|
|
|
|
|
## 1.1.1
|
|
|
|
|
|
|
|
This release fixes a bug in the `1.1.0` build system. The source is exactly the
|
|
|
|
same.
|
|
|
|
|
|
|
|
The bug that was fixed was a failure to install if no `EXECSUFFIX` was used.
|
|
|
|
|
|
|
|
## 1.1.0
|
|
|
|
|
|
|
|
This is a production release. However, many new features were added since `1.0`.
|
|
|
|
|
|
|
|
1. **The build system has been changed** to use a custom, POSIX
|
|
|
|
shell-compatible configure script ([`configure.sh`][6]) to generate a POSIX
|
|
|
|
make-compatible `Makefile`, which means that `bc` and `dc` now build out of
|
|
|
|
the box on any POSIX-compatible system.
|
|
|
|
2. Out-of-memory and output errors now cause the `bc` to report the error,
|
|
|
|
clean up, and die, rather than just reporting and trying to continue.
|
|
|
|
3. **Strings and constants are now garbage collected** when possible.
|
|
|
|
4. Signal handling and checking has been made more simple and more thorough.
|
|
|
|
5. `BcGlobals` was refactored into `BcVm` and `BcVm` was made global. Some
|
|
|
|
procedure names were changed to reflect its difference to everything else.
|
|
|
|
6. Addition got a speed improvement.
|
|
|
|
7. Some common code for addition and multiplication was refactored into its own
|
|
|
|
procedure.
|
|
|
|
8. A bug was removed where `dc` could have been selected, but the internal
|
|
|
|
`#define` that returned `true` for a query about `dc` would not have
|
|
|
|
returned `true`.
|
|
|
|
9. Useless calls to `bc_num_zero()` were removed.
|
|
|
|
10. **History support was added.** The history support is based off of a
|
|
|
|
[UTF-8 aware fork][7] of [`linenoise`][8], which has been customized with
|
|
|
|
`bc`'s own data structures and signal handling.
|
|
|
|
11. Generating C source from the math library now removes tabs from the library,
|
|
|
|
shrinking the size of the executable.
|
|
|
|
12. The math library was shrunk.
|
|
|
|
13. Error handling and reporting was improved.
|
|
|
|
14. Reallocations were reduced by giving access to the request size for each
|
|
|
|
operation.
|
|
|
|
15. **`abs()` (`b` command for `dc`) was added as a builtin.**
|
|
|
|
16. Both calculators were tested on FreeBSD.
|
|
|
|
17. Many obscure parse bugs were fixed.
|
|
|
|
18. Markdown and man page manuals were added, and the man pages are installed by
|
|
|
|
`make install`.
|
|
|
|
19. Executable size was reduced, though the added features probably made the
|
|
|
|
executable end up bigger.
|
|
|
|
20. **GNU-style array references were added as a supported feature.**
|
|
|
|
21. Allocations were reduced.
|
|
|
|
22. **New operators were added**: `$` (`$` for `dc`), `@` (`@` for `dc`), `@=`,
|
|
|
|
`<<` (`H` for `dc`), `<<=`, `>>` (`h` for `dc`), and `>>=`. See the
|
|
|
|
[`bc` manual][9] and the [`dc` manual][10] for more details.
|
|
|
|
23. **An extended math library was added.** This library contains code that
|
|
|
|
makes it so I can replace my desktop calculator with this `bc`. See the
|
|
|
|
[`bc` manual][3] for more details.
|
|
|
|
24. Support for all capital letters as numbers was added.
|
|
|
|
25. **Support for GNU-style void functions was added.**
|
|
|
|
26. A bug fix for improper handling of function parameters was added.
|
|
|
|
27. Precedence for the or (`||`) operator was changed to match GNU `bc`.
|
|
|
|
28. `dc` was given an explicit negation command.
|
|
|
|
29. `dc` was changed to be able to handle strings in arrays.
|
|
|
|
|
|
|
|
## 1.1 Release Candidate 3
|
|
|
|
|
|
|
|
This release is the eighth release candidate for 1.1, though it is the third
|
|
|
|
release candidate meant as a general release candidate. The new code has not
|
|
|
|
been tested as thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.1 Release Candidate 2
|
|
|
|
|
|
|
|
This release is the seventh release candidate for 1.1, though it is the second
|
|
|
|
release candidate meant as a general release candidate. The new code has not
|
|
|
|
been tested as thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.1 FreeBSD Beta 5
|
|
|
|
|
|
|
|
This release is the sixth release candidate for 1.1, though it is the fifth
|
|
|
|
release candidate meant specifically to test if `bc` works on FreeBSD. The new
|
|
|
|
code has not been tested as thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.1 FreeBSD Beta 4
|
|
|
|
|
|
|
|
This release is the fifth release candidate for 1.1, though it is the fourth
|
|
|
|
release candidate meant specifically to test if `bc` works on FreeBSD. The new
|
|
|
|
code has not been tested as thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.1 FreeBSD Beta 3
|
|
|
|
|
|
|
|
This release is the fourth release candidate for 1.1, though it is the third
|
|
|
|
release candidate meant specifically to test if `bc` works on FreeBSD. The new
|
|
|
|
code has not been tested as thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.1 FreeBSD Beta 2
|
|
|
|
|
|
|
|
This release is the third release candidate for 1.1, though it is the second
|
|
|
|
release candidate meant specifically to test if `bc` works on FreeBSD. The new
|
|
|
|
code has not been tested as thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.1 FreeBSD Beta 1
|
|
|
|
|
|
|
|
This release is the second release candidate for 1.1, though it is meant
|
|
|
|
specifically to test if `bc` works on FreeBSD. The new code has not been tested as
|
|
|
|
thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.1 Release Candidate 1
|
|
|
|
|
|
|
|
This is the first release candidate for 1.1. The new code has not been tested as
|
|
|
|
thoroughly as it should for release.
|
|
|
|
|
|
|
|
## 1.0
|
|
|
|
|
|
|
|
This is the first non-beta release. `bc` is ready for production use.
|
|
|
|
|
|
|
|
As such, a lot has changed since 0.5.
|
|
|
|
|
|
|
|
1. `dc` has been added. It has been tested even more thoroughly than `bc` was
|
|
|
|
for `0.5`. It does not have the `!` command, and for security reasons, it
|
|
|
|
never will, so it is complete.
|
|
|
|
2. `bc` has been more thoroughly tested. An entire section of the test suite
|
|
|
|
(for both programs) has been added to test for errors.
|
|
|
|
3. A prompt (`>>> `) has been added for interactive mode, making it easier to
|
|
|
|
see inputs and outputs.
|
|
|
|
4. Interrupt handling has been improved, including elimination of race
|
|
|
|
conditions (as much as possible).
|
|
|
|
5. MinGW and [Windows Subsystem for Linux][1] support has been added (see
|
|
|
|
[xstatic][2] for binaries).
|
|
|
|
6. Memory leaks and errors have been eliminated (as far as ASan and Valgrind
|
|
|
|
can tell).
|
|
|
|
7. Crashes have been eliminated (as far as [afl][3] can tell).
|
|
|
|
8. Karatsuba multiplication was added (and thoroughly) tested, speeding up
|
|
|
|
multiplication and power by orders of magnitude.
|
|
|
|
9. Performance was further enhanced by using a "divmod" function to reduce
|
|
|
|
redundant divisions and by removing superfluous `memset()` calls.
|
|
|
|
10. To switch between Karatsuba and `O(n^2)` multiplication, the config variable
|
|
|
|
`BC_NUM_KARATSUBA_LEN` was added. It is set to a sane default, but the
|
|
|
|
optimal number can be found with [`karatsuba.py`][4] (requires Python 3)
|
|
|
|
and then configured through `make`.
|
|
|
|
11. The random math test generator script was changed to Python 3 and improved.
|
|
|
|
`bc` and `dc` have together been run through 30+ million random tests.
|
|
|
|
12. All known math bugs have been fixed, including out of control memory
|
|
|
|
allocations in `sine` and `cosine` (that was actually a parse bug), certain
|
|
|
|
cases of infinite loop on square root, and slight inaccuracies (as much as
|
|
|
|
possible; see the [README][5]) in transcendental functions.
|
|
|
|
13. Parsing has been fixed as much as possible.
|
|
|
|
14. Test coverage was improved to 94.8%. The only paths not covered are ones
|
|
|
|
that happen when `malloc()` or `realloc()` fails.
|
|
|
|
15. An extension to get the length of an array was added.
|
|
|
|
16. The boolean not (`!`) had its precedence change to match negation.
|
|
|
|
17. Data input was hardened.
|
|
|
|
18. `bc` was made fully compliant with POSIX when the `-s` flag is used or
|
|
|
|
`POSIXLY_CORRECT` is defined.
|
|
|
|
19. Error handling was improved.
|
|
|
|
20. `bc` now checks that files it is given are not directories.
|
|
|
|
|
|
|
|
## 1.0 Release Candidate 7
|
|
|
|
|
|
|
|
This is the seventh release candidate for 1.0. It fixes a few bugs in 1.0
|
|
|
|
Release Candidate 6.
|
|
|
|
|
|
|
|
## 1.0 Release Candidate 6
|
|
|
|
|
|
|
|
This is the sixth release candidate for 1.0. It fixes a few bugs in 1.0 Release
|
|
|
|
Candidate 5.
|
|
|
|
|
|
|
|
## 1.0 Release Candidate 5
|
|
|
|
|
|
|
|
This is the fifth release candidate for 1.0. It fixes a few bugs in 1.0 Release
|
|
|
|
Candidate 4.
|
|
|
|
|
|
|
|
## 1.0 Release Candidate 4
|
|
|
|
|
|
|
|
This is the fourth release candidate for 1.0. It fixes a few bugs in 1.0 Release
|
|
|
|
Candidate 3.
|
|
|
|
|
|
|
|
## 1.0 Release Candidate 3
|
|
|
|
|
|
|
|
This is the third release candidate for 1.0. It fixes a few bugs in 1.0 Release
|
|
|
|
Candidate 2.
|
|
|
|
|
|
|
|
## 1.0 Release Candidate 2
|
|
|
|
|
|
|
|
This is the second release candidate for 1.0. It fixes a few bugs in 1.0 Release
|
|
|
|
Candidate 1.
|
|
|
|
|
|
|
|
## 1.0 Release Candidate 1
|
|
|
|
|
|
|
|
This is the first Release Candidate for 1.0. `bc` is complete, with `dc`, but it
|
|
|
|
is not tested.
|
|
|
|
|
|
|
|
## 0.5
|
|
|
|
|
|
|
|
This beta release completes more features, but it is still not complete nor
|
|
|
|
tested as thoroughly as necessary.
|
|
|
|
|
|
|
|
## 0.4.1
|
|
|
|
|
|
|
|
This beta release fixes a few bugs in 0.4.
|
|
|
|
|
|
|
|
## 0.4
|
|
|
|
|
|
|
|
This is a beta release. It does not have the complete set of features, and it is
|
|
|
|
not thoroughly tested.
|
|
|
|
|
|
|
|
[1]: https://docs.microsoft.com/en-us/windows/wsl/install-win10
|
|
|
|
[2]: https://pkg.musl.cc/bc/
|
|
|
|
[3]: http://lcamtuf.coredump.cx/afl/
|
vendor/bc: imoport release 5.0.0
This is a new major release with a number of changes and extensions:
- Limited the number of temporary numbers and made the space for them
static so that allocating more space for them cannot fail.
- Allowed integers with non-zero scale to be used with power, places,
and shift operators.
- Added greatest common divisor and least common multiple to lib2.bc.
- Made bc and dc UTF-8 capable.
- Added the ability for users to have bc and dc quit on SIGINT.
- Added the ability for users to disable prompt and TTY mode by
environment variables.
- Added the ability for users to redefine keywords.
- Added dc's modular exponentiation and divmod to bc.
- Added the ability to assign strings to variables and array elements
and pass them to functions in bc.
- Added dc's asciify command and stream printing to bc.
- Added bitwise and, or, xor, left shift, right shift, reverse,
left rotate, right rotate, and mod functions to lib2.bc.
- Added the functions s2u(x) and s2un(x,n), to lib2.bc.
2021-08-09 20:32:55 +00:00
|
|
|
[4]: ./scripts/karatsuba.py
|
Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
|
|
|
[5]: ./README.md
|
|
|
|
[6]: ./configure.sh
|
|
|
|
[7]: https://github.com/rain-1/linenoise-mob
|
|
|
|
[8]: https://github.com/antirez/linenoise
|
2020-07-07 07:02:33 +00:00
|
|
|
[9]: ./manuals/bc/A.1.md
|
|
|
|
[10]: ./manuals/dc/A.1.md
|
Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
|
|
|
[11]: https://scan.coverity.com/projects/gavinhoward-bc
|
vendor/bc: imoport release 5.0.0
This is a new major release with a number of changes and extensions:
- Limited the number of temporary numbers and made the space for them
static so that allocating more space for them cannot fail.
- Allowed integers with non-zero scale to be used with power, places,
and shift operators.
- Added greatest common divisor and least common multiple to lib2.bc.
- Made bc and dc UTF-8 capable.
- Added the ability for users to have bc and dc quit on SIGINT.
- Added the ability for users to disable prompt and TTY mode by
environment variables.
- Added the ability for users to redefine keywords.
- Added dc's modular exponentiation and divmod to bc.
- Added the ability to assign strings to variables and array elements
and pass them to functions in bc.
- Added dc's asciify command and stream printing to bc.
- Added bitwise and, or, xor, left shift, right shift, reverse,
left rotate, right rotate, and mod functions to lib2.bc.
- Added the functions s2u(x) and s2un(x,n), to lib2.bc.
2021-08-09 20:32:55 +00:00
|
|
|
[12]: ./scripts/locale_install.sh
|
Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
|
|
|
[13]: ./manuals/build.md
|
|
|
|
[14]: https://github.com/stesser
|
|
|
|
[15]: https://github.com/bugcrazy
|
2020-07-07 07:02:33 +00:00
|
|
|
[16]: ./manuals/bc/A.1.md#extended-library
|
Import new 2-clause BSD licenced implementation of the bc and dc commands
These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:
- They do not depend on external large number functions (i.e. no dependency
on OpenSSL or any other large number library)
- They implements all features found in GNU bc/dc (with the exception of
the forking of sub-processes, which the author of this version considers
as a security issue).
- They are significantly faster than the current code in base (more than
2 orders of magnitude in some of my tests, e.g. for 12345^100000).
- They should be fully compatible with all features and the behavior of the
current implementations in FreeBSD (not formally verified).
- They support POSIX message catalogs and come with localized messages in
Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
and Russian.
- They offer very detailed man-pages that provide far more information than
the current ones.
Approved by: imp
Obtained from: https://git.yzena.com/gavin/bc
Differential Revision: https://reviews.freebsd.org/D19982
2020-06-27 15:03:19 +00:00
|
|
|
[17]: https://github.com/skeeto/optparse
|
|
|
|
[18]: https://www.deepl.com/translator
|
|
|
|
[19]: ./manuals/benchmarks.md
|
2020-07-07 07:02:33 +00:00
|
|
|
[20]: https://github.com/apjanke/ronn-ng
|
|
|
|
[21]: https://pandoc.org/
|
vendor/bc: imoport release 5.0.0
This is a new major release with a number of changes and extensions:
- Limited the number of temporary numbers and made the space for them
static so that allocating more space for them cannot fail.
- Allowed integers with non-zero scale to be used with power, places,
and shift operators.
- Added greatest common divisor and least common multiple to lib2.bc.
- Made bc and dc UTF-8 capable.
- Added the ability for users to have bc and dc quit on SIGINT.
- Added the ability for users to disable prompt and TTY mode by
environment variables.
- Added the ability for users to redefine keywords.
- Added dc's modular exponentiation and divmod to bc.
- Added the ability to assign strings to variables and array elements
and pass them to functions in bc.
- Added dc's asciify command and stream printing to bc.
- Added bitwise and, or, xor, left shift, right shift, reverse,
left rotate, right rotate, and mod functions to lib2.bc.
- Added the functions s2u(x) and s2un(x,n), to lib2.bc.
2021-08-09 20:32:55 +00:00
|
|
|
[22]: ./scripts/locale_uninstall.sh
|