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Author SHA1 Message Date
David Schultz
ad760e6fc9 Add dprintf() and vdprintf() from POSIX.1-2008. Like getline(), 
dprintf() is a simple wrapper around another function, so we may as
well implement it. But also like getline(), we can't prototype it by
default right now because it would break too many ports.
 2009-03-04 03:38:51 +00:00
David Schultz
aa83f5fff9 Update the manpage to reflect r145172. 2009-01-28 04:37:27 +00:00
David Schultz
e058c00c40 Updates for changes in the way printf() handles hex floating point 
numbers.
 2008-04-12 03:11:56 +00:00
Warner Losh
c879ae3536 Per Regents of the University of Calfornia letter, remove advertising 
clause.

# If I've done so improperly on a file, please let me know.
 2007-01-09 00:28:16 +00:00
Tim J. Robbins
6595b51a7f Remove references to nonexistent "FreeBSD Security Architecture" document. 2005-09-05 09:49:33 +00:00
Stefan Farfeleder
df103a1515 Document that the length modifier l is ignored for floating point 
conversion specifiers (a, A, e, E, f, F, g and G).
 2004-10-16 16:00:01 +00:00
Ruslan Ermilov
33992dc0ed Markup, grammar, and spelling fixes. 2004-06-30 20:09:10 +00:00
David Schultz
e18c6616e2 Bring the *printf(3) documentation up to date with the code: 
- Update and improve the documentation for %[aA]
  o Like %[eE], %[aA] may round the result if a precision is specified.
  o Grammar police: Fix a split infinitive.
  o The FreeBSD implementation does better than the minimum required
    by C99 (literal translation of the mantissa).  The digit before
    the hexadecimal-point is never 0 unless the number itself is 0.
  o Clarify that the exponent field represents a decimal exponent of 2.
  o Discuss the fact that multiple valid representations are possible.
  o Remove the entry in the BUGS section claiming that %[aA] is not
    implemented.

- Remove the entry in the BUGS section claiming that the ' flag for
  printing thousands separators is unimplemented for floating-point.

- Remove the entry in the BUGS section claiming that the L modifier
  reduces the precision to "double" before conversion.
 2004-01-19 08:28:30 +00:00
Tim J. Robbins
e2b090f34f Note that the printf(3) and scanf(3) family of functions don't deal with 
multibyte characters in the format string correctly.
 2003-01-06 06:19:19 +00:00
Tim J. Robbins
4aca04ee5c Document the fact that the printf() family of functions return negative 
values (EOF in our case) on error, and some of the possible errno values
in an Errors section.

PR:		39257
 2002-12-20 08:28:10 +00:00
Ruslan Ermilov
1fae73b137 mdoc(7) police: "The .Fn function". 2002-12-18 12:45:11 +00:00
Ruslan Ermilov
ae82896268 Consistently mark std(in|out|err) with .Dv, because that's how they 
are marked up in stdio(3), and because they are defined expressions
of type "FILE *".

Approved by:	re
 2002-12-04 18:57:46 +00:00
Tim J. Robbins
9619813de9 Cross-reference fmtcheck(3). 2002-10-20 03:56:37 +00:00
Tim J. Robbins
118bb75e02 Indent code example with one tab, not two, for consistency with the rest. 2002-10-19 13:48:45 +00:00
Tim J. Robbins
38b5abad06 Add cross-references between wide character and single-byte character 
versions of printf() and scanf().
 2002-09-24 09:22:47 +00:00
Tim J. Robbins
b9aac30810 Implement the %ls and %lc conversions for printing wide character strings 
and wide characters. These were already documented in the manual page,
with an entry mentioning that they were not implemented yet. The XSI
%S and %C synoyms have not been added.
 2002-09-19 12:50:28 +00:00
Tim J. Robbins
58d38e2520 Style: One space between "restrict" qualifier and "*". 2002-09-06 11:24:06 +00:00
Robert Drehmel
f8418db73e - For compliance with IEEE Std 1003.1-2001, add the 'restrict' 
qualifier to function prototypes and definitions where
   appropriate using the '__restrict' macro.
 - Update the manual page.
 2002-08-15 10:28:52 +00:00
Robert Drehmel
71a00a449f - Introduce the 'restrict' qualifier to function prototypes and 
definitions to comply with IEEE Std 1003.1-2001.
 - Update the manual pages.
 2002-08-15 09:47:10 +00:00
Jens Schweikhardt
2b239dd118 Fix typos; each file has at least one s/seperat/separat/ 
(I skipped those in contrib/, gnu/ and crypto/)
While I was at it, fixed a lot more found by ispell that I
could identify with certainty to be errors. All of these
were in comments or text, not in actual code.

Suggested by:	bde
MFC after:	3 days
 2002-08-11 13:05:30 +00:00
Ruslan Ermilov
a8272f7106 mdoc(7) police: punctuation. 2002-08-09 11:24:21 +00:00
Garrett Wollman
c98a4bf3fb Don't claim to fully implement C99 in the STANDARDS section and then disclaim 
compliance in the BUGS section immediately below.
 2002-07-15 19:46:06 +00:00
Chris Costello
1b5c321d3f Fix style and wording bugs introduced in my last commit. 
Sponsored by:	DARPA, NAI Labs
 2002-06-18 08:55:17 +00:00
Chris Costello
5f9c048ce7 o Move more information from BUGS into SECURITY CONSIDERATIONS and 
condense the redundant bits.
o Provide an example for using snprintf over sprintf.  This may be
  supplemented with an asprintf() example soon.

Sponsored by:	DARPA, NAI Labs
 2002-06-15 06:00:56 +00:00
Chris Costello
7bc7869122 Include information on the dangers of passing a user-supplied string as 
a format string.  This will later on be changed to a reference to the
FreeBSD Security Architecture after it has been committed.

PR:		docs/39320
Sposnored by:	DARPA, NAI Labs
 2002-06-13 23:35:22 +00:00
Ruslan Ermilov
ce9df6eefc mdoc(7) police: 
Stop abusing the .%J macro for where the .Pa macro should have been used.
 2002-01-09 14:01:22 +00:00
Chris Costello
e125c135a8 Add new "SECURITY CONSIDERATIONS" sections. 
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
 2002-01-06 21:16:41 +00:00
Ruslan Ermilov
2554caf28c mdoc(7) police: Minor formatting nits and optimizations to rev. 1.34. 2001-12-12 14:36:28 +00:00
Bill Fenner
828829cda5 Remove blank line. 2001-12-07 03:25:26 +00:00
Bill Fenner
7735bb0f64 Implement several of the c99 updates to printf(3): 
- New length modifiers: hh, j, t, z.
 - New flag: '.  Note that %'f is not yet implemented.
 - Use "inf"/"nan" for efg formats, "INF"/"NAN" for EFG formats.
 - Implemented %q in terms of %ll; if "quad_t" is not "long long"
   %q will break.

Still to do:
 - %C, %S, %lc, %ls (wide character support)
 - %'f (thousands in integer portion of %f)
 - %a/%A (exact hex representation of floating-point numbers)

Garrett Wollman wrote the first version of the vfprintf.c update;
Mike Barcroft wrote the first version of the printf.3 changes.
 2001-11-30 06:12:15 +00:00
Ruslan Ermilov
32eef9aeb1 mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00
Ruslan Ermilov
4988599f44 mdoc(7) police: fixed/simplified formatting. 2001-07-04 11:59:14 +00:00
Jens Schweikhardt
32b21f091e Add description for the 'll' modifier for long long. In essence a copy 
from the 'l' description with s/long/long long/g.

PR:		27017
Submitted by:	Guy Harris <guy@alum.mit.edu>
MFC after:	2 weeks
 2001-06-13 19:05:12 +00:00
Warner Losh
656f411d33 Back out my changes describing how snprintf nul terminates. It 
was from the iso standard.  Keep the sentence that says it is always
NUL terminated to make sure that people understand that.

Requested by: bde
 2001-06-05 23:39:45 +00:00
Warner Losh
890d5b436d Minor improvements: 
o Explain snprintf's return value better.
o Document snprintf, et al, were defined in C-99
o Warn against %n.
 2001-06-05 04:22:30 +00:00
Gregory Neil Shapiro
1259dd85eb Correct the documentation for snprintf() and vsprintf() which actually 
return the number of characters that would have been in the new string.

Obtained from:	OpenBSD
MFC after:	3 days
 2001-05-30 23:47:14 +00:00
Eric Melville
2de2196026 Add warnings about trusting user-supplied data. 
Reviewed by:	ru
Approved by:	murray
Obtained from:	OpenBSD
 2001-05-25 20:42:40 +00:00
Ruslan Ermilov
2d105f1659 mdoc(7) police: fix markup. 2001-04-18 13:16:47 +00:00
Ruslan Ermilov
588a200ce1 .St -ansiC -> .St -isoC 2001-02-26 13:23:47 +00:00
Ruslan Ermilov
429d919c70 mdoc(7) police: mark LC_NUMERIC with .Dv. 2001-02-10 10:26:52 +00:00
Andrey A. Chernov
1c97c57770 Note that decimal point taken from locale (SUSv2) 2001-02-10 06:32:03 +00:00
Ruslan Ermilov
d0353b836e mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:38:02 +00:00
Ben Smithurst
7e7a6ec033 Make it a bit clearer that asprintf doesn't actually "return" a pointer in 
the normal sense of the word, but does it through one of its arguments which
is a pointer to a pointer.

PR:		23717
Submitted by:	phk
 2001-01-01 05:19:52 +00:00
Ruslan Ermilov
4263595653 Prepare for mdoc(7)NG. 2000-12-29 14:08:20 +00:00
Ruslan Ermilov
726b61ab5f Avoid use of direct troff requests in mdoc(7) manual pages. 2000-11-10 17:46:15 +00:00
Alexey Zelkin
25bb73e063 Introduce ".Lb" macro to libc manpages. 
More libraries manpages updates following.
 2000-04-21 09:42:15 +00:00
Sheldon Hearn
4e86fcacf6 Remove more single-space hard sentence breaks. 2000-03-02 14:54:02 +00:00
Sheldon Hearn
c6ff3a1bf7 Remove single-space hard sentence breaks. These degrade the quality 
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.
 2000-03-02 09:14:21 +00:00
Kris Kennaway
466c0416c8 We no longer care about the VAX and Tahoe compilers :-) 2000-01-17 01:28:00 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00