ref: 7bf8c43ed5c66b80bb4c9b1ac1c6fdcfe72b9f19 dir: /lib/c/setbuf.c/
#include <stdio.h> #undef setbuf void setbuf(FILE * restrict fp, char * restrict buf) { setvbuf(fp, buf, (buf) ? _IOFBF : _IONBF, BUFSIZ); }