c++ macro

 C++ Code 
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/*
version: 1.0
author: hellogiser
blog: http://www.cnblogs.com/hellogiser
date: 2014/9/25
*/


#include "stdafx.h"
#include <iostream>
using namespace std;

void test_macro()
{
    printf(
"File: %s ", __FILE__);
    printf(
"Line: %d ", __LINE__);
    printf(
"Date: %s ", __DATE__);
    printf(
"Time: %s ", __TIME__);
}

int main()
{
    test_macro();
    
return 0;
}
/*
File: f:openjudgeopenjudge00_test00_test.cpp
Line: 15
Date: Sep 25 2014
Time: 21:16:24
*/

原文地址:https://www.cnblogs.com/hellogiser/p/c-macros.html