ref: 46d3eab0b1e077005fcc4a7bc5257be9a411d1a1 dir: /lib/c/src/putc.c/
#include <stdio.h> #undef putc int putc(int ch, FILE *fp) { return (fp->wp >= fp->rp) ? __putc(c,fp) : *fp->wp++ = c; }