ChangeLog.gcc43 revision 259408 
12007-06-05  Joerg Wunsch  <j.gnu@uriah.heep.sax.de> (r250566)
2
3	PR preprocessor/23479
4	* expr.c (cpp_classify_number): Implement 0b-prefixed binary
5	integer constants.
6	(append_digit): Likewise.
7	* include/cpplib.h: Add CPP_N_BINARY, to be used for 0b-prefixed
8	binary integer constants.
9	
102007-05-21  Ian Lance Taylor  <iant@google.com> (r124929)
11
12	* internal.h (struct cpp_reader): Add new fields:
13	nonexistent_file_hash and nonexistent_file_ob.
14	* files.c: Include "obstack.h".
15	(find_file_in_dir): Before trying to open the file, look up the
16	path name in the hash table of nonexistent files.  After failing
17	to open the file, add the path name to the hash table.
18	(_cpp_find_file): Cache the results of looking up the file name
19	starting with the quote and bracket chain heads, if we can.
20	(nonexistent_file_hash_eq): New static function.
21	(_cpp_init_files): Initialize pfile->nonexistent_file_hash and
22	pfile->nonexistent_file_ob.
23	(_cpp_cleanup_files): Free pfile->nonexistent_file_hash and
24	pfile->nonexistent_file_ob.
25
262006-12-29  Ian Lance Taylor  <iant@google.com> (r120263)
27
28	* lex.c (_cpp_clean_line): Add uses of __builtin_expect.  Don't
29	look backward at the end of the line unless we saw a backslash.
30