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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/libiberty/strncmp.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/libiberty/strncmp.c')
-rw-r--r-- | gcc-4.9/libiberty/strncmp.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc-4.9/libiberty/strncmp.c b/gcc-4.9/libiberty/strncmp.c new file mode 100644 index 000000000..23f6df617 --- /dev/null +++ b/gcc-4.9/libiberty/strncmp.c @@ -0,0 +1,34 @@ +/* strncmp -- compare two strings, stop after n bytes. + This function is in the public domain. */ + +/* + +@deftypefn Supplemental int strncmp (const char *@var{s1}, @ + const char *@var{s2}, size_t @var{n}) + +Compares the first @var{n} bytes of two strings, returning a value as +@code{strcmp}. + +@end deftypefn + +*/ + +#include <ansidecl.h> +#include <stddef.h> + +int +strncmp(const char *s1, const char *s2, register size_t n) +{ + register unsigned char u1, u2; + + while (n-- > 0) + { + u1 = (unsigned char) *s1++; + u2 = (unsigned char) *s2++; + if (u1 != u2) + return u1 - u2; + if (u1 == '\0') + return 0; + } + return 0; +} |