vsprintf.c

来自「avr单片机的一些实际应用源码」· C语言 代码 · 共 27 行

#include <stdio.h>
#include <stdarg.h>
#include "_stdio.h"

static char *p;

#if defined(_HC12)
#pragma nonpaged_function _vsdepi
#endif

/* static */ /* workaround for AVR code compressor for > 128K bytes
func_lit entry must be a public symbol */
void _vsdepi(char c)
	{
	*p++ = c;
	}
	
int vsprintf(char *buf, CONST char *fmt, va_list va)
	{

	p = buf;
	_print(_vsdepi, fmt, va);
	*p = 0;

	return p - buf;
	}