在MingW下,简单的C++程序没有在Windows上链接

Question

我不知道为什么我无法链接这个程序.首先,这是我的头文件,gcd.h:

#ifndef GCD_H
#define GCD_H

/**
 * Calculate the greatest common divisor of two integers.
 * Note: gcd(0,0) will return 0 and print an error message.
 * @param a the first integer
 * @param b the second integer
 * @return the greatest common divisor of a and b
 */

long gcd(long a, long b);

#endif

这是我的gcd.cpp文件:

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

long gcd(long a, long b) {

    // if a and b are both zero, print an error and return 0
    if ( (a==0) && (b==0) ) {
        cerr << "WARNING: gcd called with both arguments equal to zero." << endl;
        return 0;
    }

    // Make sure a and b are both nonnegative
    if (a<0) {
        a = -a;
    }
    if (b<0) {
        b = -b;
    }

    // if a is zero, the answer is b
    if (a==0) {
        return b;
    }

    // otherwise, we check all the possibilities from 1 to a
    long d; // d will hold the answer

    for (long t=1; t<=a; t++) {
        if ( (a%t==0) && (b&t==0) ) {
            d = t;
        }
    }

    return d;
}

主要问题是当我编译时,它返回错误

c:/ mingw/bin /../ lib/gcc/mingw32/4.5.2 /../../../ libmingw32.a(main.o):main.c :(.text + 0xd2):undefined引用`WinMain @ 16'colle2:ld返回1退出状态

我不明白这意味着什么.

请帮忙？

好吧,实际上有人可以修改我的代码以便它正常运行吗？这是最好的选择,因为那时我真的明白我做错了什么.

Answer 1

你的main功能在哪里(程序的入口点......)？

顺便说一下,我喜欢你写的"主要问题":)