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| author | Ulrich Drepper <drepper@redhat.com> | 2001-01-08 08:50:37 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2001-01-08 08:50:37 +0000 |
| commit | 9b2c75233e67af1943af87a4fd39c6b316064b1f (patch) | |
| tree | 5cf54675b0067d9be0ee80e5f2d3e8fb2f3a180c /libio/bits/stdio.h | |
| parent | bf2c10ded6bd31d7b923408f099b32b549acb934 (diff) | |
| download | glibc-9b2c75233e67af1943af87a4fd39c6b316064b1f.tar.gz | |
Update.
2001-01-08 Ulrich Drepper <drepper@redhat.com>
* libio/bits/stdio.h (printf): Define macro to map printf call to
fprintf which gcc can optimize.
Diffstat (limited to 'libio/bits/stdio.h')
| -rw-r--r-- | libio/bits/stdio.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libio/bits/stdio.h b/libio/bits/stdio.h index 2522a3846e..0b4f614221 100644 --- a/libio/bits/stdio.h +++ b/libio/bits/stdio.h @@ -1,5 +1,5 @@ /* Optimizing macros and inline functions for stdio functions. - Copyright (C) 1998, 2000 Free Software Foundation, Inc. + Copyright (C) 1998, 2000, 2001 Free Software Foundation, Inc. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as @@ -28,6 +28,13 @@ #ifdef __USE_EXTERN_INLINES +/* Since version 2.97 GCC knows about `fprintf' and can optimize certain + cases. Help gcc to optimize more code by mapping `printf' to the known + `fprintf' function. Unfortunately we have to use a macro. */ +# if __GNUC_PREREQ (2,97) +# define printf(fmt, args...) fprintf (stdout, fmt, ##args) +# endif + /* Write formatted output to stdout from argument list ARG. */ __STDIO_INLINE int vprintf (__const char *__restrict __fmt, _G_va_list __arg) __THROW |