You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
16 lines
450 B
C
16 lines
450 B
C
#include "byte.h"
|
|
|
|
/* byte_copyr copies in[len-1] to out[len-1], in[len-2] to out[len-2],
|
|
* ... and in[0] to out[0] */
|
|
void byte_copyr(void* out, unsigned int len, const void* in) {
|
|
register char* s=(char*)out+len;
|
|
register const char* t=in;
|
|
register const char* u=t+len;
|
|
for (;;) {
|
|
if (t>=u) break; --u; --s; *s=*u;
|
|
if (t>=u) break; --u; --s; *s=*u;
|
|
if (t>=u) break; --u; --s; *s=*u;
|
|
if (t>=u) break; --u; --s; *s=*u;
|
|
}
|
|
}
|