判断浮点数是否为整数

Posted 2022-06-09 spzeno

#include<bits/stdc++.h>
using namespace std;
const double eps=1e-2;
bool f(double x)

    if(x>(int)(x+0.5))
    
         if(x-(int)(x+0.5)<eps)
            return true;
    
    else
    
        if((int)(x+0.5)-x<eps)
            return true;
    

    return false;

int main()

    cout<<f(1.000000000002)<<endl;
    return 0;