diff options
Diffstat (limited to 'ruby_1_8_6/missing/memcmp.c')
-rw-r--r-- | ruby_1_8_6/missing/memcmp.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/ruby_1_8_6/missing/memcmp.c b/ruby_1_8_6/missing/memcmp.c new file mode 100644 index 0000000000..9edc9c13b9 --- /dev/null +++ b/ruby_1_8_6/missing/memcmp.c @@ -0,0 +1,18 @@ +/* public domain rewrite of memcmp(3) */ + +int +memcmp(s1,s2,len) + char *s1; + char *s2; + register int len; +{ + register unsigned char *a = (unsigned char*)s1; + register unsigned char *b = (unsigned char*)s2; + register int tmp; + + while (len--) { + if (tmp = *a++ - *b++) + return tmp; + } + return 0; +} |