1 #include <string.h>
2
strncat(char *restrict d, const char *restrict s, size_t n)3 char *strncat(char *restrict d, const char *restrict s, size_t n)
4 {
5 char *a = d;
6 while (*d != 0) d++;
7 while (n && *s) n--, *d++ = *s++;
8 *d++ = 0;
9 return a;
10 }
11