ref: 4bf1a97b6f21f2728afe47c7a9f59909b9eb84c7 dir: /lib/c/putc.c/
#include <stdio.h> #undef putc int putc(int ch, FILE *fp) { return (fp->wp >= fp->rp) ? __putc(c,fp) : *fp->wp++ = c; }