ref: 08a32f26c08c322c5549b94c05032d2e87f1df3c 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); }