do_printf.c.svn-base

来自「SImple Microkernel Distributed Operating」· SVN-BASE 代码 · 共 18 行

#include <stdio.h>
#include "local.h"

int (_do_printf)(const char *fmt, va_list ap, FILE *stream)
{
	int 	n_chars = 0;
	int 	c = '\0';
	
	while(c == *(fmt++)){
		if((putc(c, stream)) == EOF)
			return n_chars ? -n_chars : -1;
		n_chars++;
	}

	return n_chars;
}