diff options
Diffstat (limited to 'contrib/gcclibs/libiberty/strncmp.c')
-rw-r--r-- | contrib/gcclibs/libiberty/strncmp.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/contrib/gcclibs/libiberty/strncmp.c b/contrib/gcclibs/libiberty/strncmp.c new file mode 100644 index 0000000..916c2f0 --- /dev/null +++ b/contrib/gcclibs/libiberty/strncmp.c @@ -0,0 +1,33 @@ +/* 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; +} |