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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncmp.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncmp.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncmp.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncmp.c b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncmp.c new file mode 100644 index 000000000..7a8eb6fd2 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncmp.c @@ -0,0 +1,27 @@ +extern void abort (void); +extern int inside_main; + +typedef __SIZE_TYPE__ size_t; + +__attribute__ ((__noinline__)) +int +strncmp(const char *s1, const char *s2, size_t n) +{ + const unsigned char *u1 = (const unsigned char *)s1; + const unsigned char *u2 = (const unsigned char *)s2; + unsigned char c1, c2; + +#ifdef __OPTIMIZE__ + if (inside_main) + abort(); +#endif + + while (n > 0) + { + c1 = *u1++, c2 = *u2++; + if (c1 == '\0' || c1 != c2) + return c1 - c2; + n--; + } + return c1 - c2; +} |