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Don't check whether the first byte of the buffer is a null byte when

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the buffer has zero length (n == 0).
This commit is contained in:
Tim J. Robbins 2002-11-10 10:49:14 +00:00
parent e8ef497c66
commit 2f5154a2c1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=106725
1 changed files with 1 additions and 7 deletions
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8
lib/libc/locale/mbrtowc.c
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@ -45,12 +45,6 @@ mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
n = 1;
}
if (*s == '\0') {
if (pwc != NULL)
*pwc = L'\0';
return (0);
}
if ((r = sgetrune(s, n, &e)) == _INVALID_RUNE) {
/*
* The design of sgetrune() doesn't give us any way to tell
@ -77,5 +71,5 @@ mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
if (pwc != NULL)
*pwc = (wchar_t)r;
return ((size_t)(e - s));
return (r != 0 ? (size_t)(e - s) : 0);
}