diff options
| author | Victor Stinner <victor.stinner@gmail.com> | 2013-04-09 21:53:26 (GMT) |
|---|---|---|
| committer | Victor Stinner <victor.stinner@gmail.com> | 2013-04-09 21:53:26 (GMT) |
| commit | 247109e74dcdde19c491c966496655cb87834981 (patch) | |
| tree | d1a3f603a2743dfb853b9bf2546d53e65c0b44fc /Objects | |
| parent | 2a4df127c731330be8455ed8b0640987ec9dae6b (diff) | |
| download | cpython-247109e74dcdde19c491c966496655cb87834981.zip cpython-247109e74dcdde19c491c966496655cb87834981.tar.gz cpython-247109e74dcdde19c491c966496655cb87834981.tar.bz2 | |
Issue #17615: On Windows (VS2010), Performances of wmemcmp() to compare Unicode
strings are not convincing. For UCS2 (16-bit wchar_t type), use a dummy loop
instead of wmemcmp(). The dummy loop is as fast, or a little bit faster.
wchar_t is only 16-bit long on Windows. wmemcmp() is still used for 32-bit
wchar_t.
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/unicodeobject.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c index 6b63157..162221c 100644 --- a/Objects/unicodeobject.c +++ b/Objects/unicodeobject.c @@ -10375,16 +10375,7 @@ unicode_compare(PyObject *str1, PyObject *str2) break; case PyUnicode_2BYTE_KIND: { -#if defined(HAVE_WMEMCMP) && SIZEOF_WCHAR_T == 2 - int cmp = wmemcmp((wchar_t *)data1, (wchar_t *)data2, len); - /* normalize result of wmemcmp() into the range [-1; 1] */ - if (cmp < 0) - return -1; - if (cmp > 0) - return 1; -#else COMPARE(Py_UCS2, Py_UCS2); -#endif break; } case PyUnicode_4BYTE_KIND: |