Mirror of :pserver:cvs@cvs.fefe.de:/cvs libowfat https://www.fefe.de/libowfat/
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#include "str.h"
size_t str_copy(char *out,const char *in) {
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register char* s=out;
register const char* t=in;
for (;;) {
if (!(*s=*t)) break;
++s; ++t;
if (!(*s=*t)) break;
++s; ++t;
if (!(*s=*t)) break;
++s; ++t;
if (!(*s=*t)) break;
++s; ++t;
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}
return (size_t)(s-out);
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}
#ifdef UNITTEST
#include <assert.h>
#include <string.h>
int main() {
char buf[100];
memset(buf,1,sizeof(buf)); assert(str_copy(buf,"foo")==3 && !memcmp(buf,"foo",4));
}
#endif