absval.cpp

来自「C++ sample code, for the book: C++ blac」· C++ 代码 · 共 15 行

#include <iostream>
using namespace std;

int main()
{
    int value = -10;

    if(value > 0) {
        cout << "Abs(" << value << ") = " << value << endl;
    }
    else {
        cout << "Abs(" << value << ") = " << -value << endl;
    }
}