libcpp: Keep a record of changes from upstream GCC (pre-43).

This makes it easier to track the changes in the rare event of the code
being distributed without access to version control.

MFC after:	3 weeks
This commit is contained in:
Pedro F. Giffuni 2013-11-24 20:54:52 +00:00
parent 299f9dc1a6
commit b5e1e9602d

View File

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2007-06-05 Joerg Wunsch <j.gnu@uriah.heep.sax.de> (r250566)
PR preprocessor/23479
* expr.c (cpp_classify_number): Implement 0b-prefixed binary
integer constants.
(append_digit): Likewise.
* include/cpplib.h: Add CPP_N_BINARY, to be used for 0b-prefixed
binary integer constants.
2007-05-21 Ian Lance Taylor <iant@google.com> (r124929)
* internal.h (struct cpp_reader): Add new fields:
nonexistent_file_hash and nonexistent_file_ob.
* files.c: Include "obstack.h".
(find_file_in_dir): Before trying to open the file, look up the
path name in the hash table of nonexistent files. After failing
to open the file, add the path name to the hash table.
(_cpp_find_file): Cache the results of looking up the file name
starting with the quote and bracket chain heads, if we can.
(nonexistent_file_hash_eq): New static function.
(_cpp_init_files): Initialize pfile->nonexistent_file_hash and
pfile->nonexistent_file_ob.
(_cpp_cleanup_files): Free pfile->nonexistent_file_hash and
pfile->nonexistent_file_ob.
2006-12-29 Ian Lance Taylor <iant@google.com> (r120263)
* lex.c (_cpp_clean_line): Add uses of __builtin_expect. Don't
look backward at the end of the line unless we saw a backslash.