ref: 57b7d9443f8a5ea6e19a7080f5ed310b86c3db74
dir: /src/libc/string/strcat.c/
#include <string.h> #undef strcat char * strcat(char * restrict dst, const char * restrict src) { char *ret = dst; while (*dst) ++dst; while (*dst++ = *src++) ; return ret; }