ref: 18cffd69099077966d80b47aad16bf5f7f6b2e5b
dir: /src/libc/string/strncat.c/
#include <string.h> #undef strncat char * strncat(char *restrict s1, const char *restrict s2, size_t n) { char *ret = s1; while(*s1) ++s1; while (n-- > 0 && *s2) *s1++ = *s2++; *s1 = '\0'; return ret; }