cast.cpp

来自「本课程主要介绍面向对象程序设计的方法和c++语言的基本概念。以c++语言中的面向」· C++ 代码 · 共 16 行

// cast.cpp
// tests signed and unsigned integers
#include <iostream>
using namespace std;

int main()
   {
   int intVar = 1500000000;                 //1,500,000,000
   intVar = (intVar * 10) / 10;             //result too large
   cout << "intVar = " << intVar << endl;   //wrong answer

   intVar = 1500000000;                     //cast to double
   intVar = (static_cast<double>(intVar) * 10) / 10;      
   cout << "intVar = " << intVar << endl;   //right answer
   return 0;
   }