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avstring: Add locale independent implementations of strcasecmp/strncasecmp

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Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Reimar Döffinger
2011-11-05 17:20:41 +02:00
committed by Martin Storsjö
parent 07b172fe8f
commit ba04ecfdac
4 changed files with 37 additions and 1 deletions
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21
libavutil/avstring.c
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@@ -134,6 +134,27 @@ char *av_get_token(const char **buf, const char *term)
return ret;
}
int av_strcasecmp(const char *a, const char *b)
{
uint8_t c1, c2;
do {
c1 = av_tolower(*a++);
c2 = av_tolower(*b++);
} while (c1 && c1 == c2);
return c1 - c2;
}
int av_strncasecmp(const char *a, const char *b, size_t n)
{
const char *end = a + n;
uint8_t c1, c2;
do {
c1 = av_tolower(*a++);
c2 = av_tolower(*b++);
} while (a < end && c1 && c1 == c2);
return c1 - c2;
}
#ifdef TEST
#undef printf