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am f56e0e4b: am 6aed6077: Merge "Fix unnecessary call to __strncpy_chk2"

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* commit 'f56e0e4b5e97f4e7fed6e06dde30053ea687716e':
  Fix unnecessary call to __strncpy_chk2
This commit is contained in:
Nick Kralevich 2013-09-27 15:18:21 -07:00 committed by Android Git Automerger
commit cadc6aaf41
1 changed files with 4 additions and 0 deletions
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libc/include/string.h
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@ -135,6 +135,10 @@ char* strncpy(char* __restrict dest, const char* __restrict src, size_t n) {
return __builtin___strncpy_chk(dest, src, n, bos_dest); return __builtin___strncpy_chk(dest, src, n, bos_dest);
} }
if (__builtin_constant_p(n) && (n <= bos_src)) {
return __builtin___strncpy_chk(dest, src, n, bos_dest);
}
size_t slen = __builtin_strlen(src); size_t slen = __builtin_strlen(src);
if (__builtin_constant_p(slen)) { if (__builtin_constant_p(slen)) {
return __builtin___strncpy_chk(dest, src, n, bos_dest); return __builtin___strncpy_chk(dest, src, n, bos_dest);