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| author | goldsteinn <35538541+goldsteinn@users.noreply.github.com> | 2022-05-24 01:45:31 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-24 01:45:31 (GMT) |
| commit | 7108bdf27c7a460cf83c4a01dea54ae4591d8aea (patch) | |
| tree | 0ebf080594979a194459f6d5f4f30cb6fafffdac /Objects/stringlib/ucs4lib.h | |
| parent | f7fabae75c7b8ecd0c5673b5d62a15db24a05953 (diff) | |
| download | cpython-7108bdf27c7a460cf83c4a01dea54ae4591d8aea.zip cpython-7108bdf27c7a460cf83c4a01dea54ae4591d8aea.tar.gz cpython-7108bdf27c7a460cf83c4a01dea54ae4591d8aea.tar.bz2 | |
gh-93033: Use wmemchr in stringlib (GH-93034)
Generally comparable perf for the "good" case where memchr doesn't
return any collisions (false matches on lower byte) but clearly faster
with collisions.
Diffstat (limited to 'Objects/stringlib/ucs4lib.h')
| -rw-r--r-- | Objects/stringlib/ucs4lib.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Objects/stringlib/ucs4lib.h b/Objects/stringlib/ucs4lib.h index 57344f2..def4ca5 100644 --- a/Objects/stringlib/ucs4lib.h +++ b/Objects/stringlib/ucs4lib.h @@ -21,6 +21,10 @@ #define STRINGLIB_CHECK PyUnicode_Check #define STRINGLIB_CHECK_EXACT PyUnicode_CheckExact #define STRINGLIB_MUTABLE 0 +#if SIZEOF_WCHAR_T == 4 +#define STRINGLIB_FAST_MEMCHR(s, c, n) \ + (Py_UCS4 *)wmemchr((const wchar_t *)(s), c, n) +#endif #define STRINGLIB_TOSTR PyObject_Str #define STRINGLIB_TOASCII PyObject_ASCII |