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msvcrt: Optimize _strnicmp_l implementation. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48723
Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2020-03-09 13:54:29 +01:00 committed by Alexandre Julliard
parent b526077189
commit 471425c16d
1 changed files with 20 additions and 2 deletions
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22
dlls/msvcrt/string.c
View File

@ -2310,6 +2310,7 @@ int __cdecl MSVCRT_strncmp(const char *str1, const char *str2, MSVCRT_size_t len
int __cdecl MSVCRT__strnicmp_l(const char *s1, const char *s2,
MSVCRT_size_t count, MSVCRT__locale_t locale)
{
MSVCRT_pthreadlocinfo locinfo;
int c1, c2;
if(s1==NULL || s2==NULL)
@ -2318,9 +2319,26 @@ int __cdecl MSVCRT__strnicmp_l(const char *s1, const char *s2,
if(!count)
return 0;
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[MSVCRT_LC_CTYPE])
{
do {
if ((c1 = *s1++) >= 'A' && c1 <= 'Z')
c1 -= 'A' - 'a';
if ((c2 = *s2++) >= 'A' && c2 <= 'Z')
c2 -= 'A' - 'a';
}while(--count && c1 && c1==c2);
return c1-c2;
}
do {
c1 = MSVCRT__tolower_l(*s1++, locale);
c2 = MSVCRT__tolower_l(*s2++, locale);
c1 = MSVCRT__tolower_l((unsigned char)*s1++, locale);
c2 = MSVCRT__tolower_l((unsigned char)*s2++, locale);
}while(--count && c1 && c1==c2);
return c1-c2;