CodeBlocks C ++ Bug [英] CodeBlocks C++ Bug

问题描述

我在做C ++（CodeBlocks），但我发现一个奇怪的问题。我把我的代码发送给我的朋友（他在DevC ++测试），它的工作。
我试过这两个代码：

I was doing something in C++ (CodeBlocks), but I found a weird problem. I sent my code to my friend (he tested it in DevC++) and it worked. I tried these two codes:

#include <iostream>
#include <math.h>
using namespace std;

int main() //this function works
{
    if (pow(3, 2) + pow(4, 2) == pow(5, 2)) {
        cout << "Works" << endl;
    } else { cout << "Nope" << endl; } 
}

但是我改变了main函数， t work）：

But, then I changed the main function like this (and it didn't work):

int main() //this function doesn't work
{
    int t1 = 3, t2 = 4, t3 = 5;
    if (pow(t1, 2) + pow(t2, 2) == pow(t3, 2)) {
        cout << "Works" << endl;
    } else { cout << "Doesn't work" << endl; }
}

任何人都知道有什么问题？

Anyone knows what's the problem ?

推荐答案

问题是，math.h不工作，所以我必须使用cmath。第二，不是整数，而是浮点数或双精度。

The problem is that the math.h doesn't work, so I have to use cmath. Second, not int, but float or double.

代码：

#include <iostream>
#include <cmath>

using namespace std;

int main()
{

    float t1 = 3, t2 = 4, t3 = 5;

    if (pow(t1, 2) + pow(t2, 2) == pow(t3, 2)) {
        cout << "PT" << endl;
    }
    else {
        cout << pow(t1, 2) + pow(t2, 2) << endl;
        cout << pow(t3, 2) << endl;
    }

}

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