diff options
Diffstat (limited to 'ruby_1_8_5/missing/memmove.c')
-rw-r--r-- | ruby_1_8_5/missing/memmove.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/ruby_1_8_5/missing/memmove.c b/ruby_1_8_5/missing/memmove.c new file mode 100644 index 0000000000..c9d67d8b45 --- /dev/null +++ b/ruby_1_8_5/missing/memmove.c @@ -0,0 +1,22 @@ +/* public domain rewrite of memcmp(3) */ + +void * +memmove (d, s, n) + void *d, *s; + int n; +{ + char *dst = d; + char *src = s; + void *ret = dst; + + if (src < dst) { + src += n; + dst += n; + while (n--) + *--dst = *--src; + } + else if (dst < src) + while (n--) + *dst++ = *src++; + return ret; +} |