1#include "fmt.h"
 2
 3unsigned int
 4fmt_str(char *s, const char *t)
 5{
 6  register unsigned int len;
 7  char ch;
 8  len = 0;
 9  if (s) { while ((ch = t[len]) != 0) s[len++] = ch; }
10  else while (t[len]) len++;
11  return len;
12}