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| author | Tim J. Robbins <tjr@FreeBSD.org> | 2004-08-21 07:00:40 +0000 |
|---|---|---|
| committer | Tim J. Robbins <tjr@FreeBSD.org> | 2004-08-21 07:00:40 +0000 |
| commit | 17211a5f9a0963117be5a2aef12bcaa8312b2cc6 (patch) | |
| tree | 591477643be7239310fc803ef18c49b7cc25ba86 /include | |
| parent | 8c9610c9febb8d3c6f6fb5812c9e198bbda471fe (diff) | |
| download | src-17211a5f9a0963117be5a2aef12bcaa8312b2cc6.tar.gz src-17211a5f9a0963117be5a2aef12bcaa8312b2cc6.zip | |
Let GCC know that ___runetype(), ___tolower() and ___toupper() are pure
functions, allowing it to generate better code for the <ctype.h> and
<wctype.h> functions. For example, it can now keep _CurrentRuneLocale
in a register across calls to these functions, and can delete calls to
___runetype() if the result is already known or not used.
Notes
Notes:
svn path=/head/; revision=134101
Diffstat (limited to 'include')
| -rw-r--r-- | include/_ctype.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/_ctype.h b/include/_ctype.h index a1fc0a2e973e..1a42952a09dc 100644 --- a/include/_ctype.h +++ b/include/_ctype.h @@ -72,9 +72,9 @@ /* See comments in <sys/_types.h> about __ct_rune_t. */ __BEGIN_DECLS -unsigned long ___runetype(__ct_rune_t); -__ct_rune_t ___tolower(__ct_rune_t); -__ct_rune_t ___toupper(__ct_rune_t); +unsigned long ___runetype(__ct_rune_t) __pure; +__ct_rune_t ___tolower(__ct_rune_t) __pure; +__ct_rune_t ___toupper(__ct_rune_t) __pure; __END_DECLS /* |