ref: 56f48a1788a3d7e1e6ee53d58f4849c6b9b3a01c dir: /src/libc/stdio/putc.c/
#include <stdio.h> #undef putc int putc(int ch, FILE *fp) { return (fp->wp >= fp->rp) ? __putc(ch,fp) : (*fp->wp++ = ch); }