ref: 5b42385090b777a97827b76840e814f57a859cb8
dir: /lib/c/strncat.c/
#include <string.h> #undef strncat char * strncat(char * restrict dst, const char * restrict src, size_t n) { char *ret = dst; while (*dst) ++dst; while (n-- > 0 && *src) *dst++ = *src++; *dst = '\0'; return ret; }