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abs()Prototype: int abs(int aNum);Header File: stdlib.h (C) or cstdlib (C++) Explanation: The abs function returns the absolute value of a number (makes it positive) as an integer. Example:
//Program asks for user input of an integer
//It will convert it to positive if it was negative
#include <cstdlib>
#include <iostream>
using namespace std;
int main()
{
int aNum;
cout<<"Enter a positive or negative integer";
cin>>aNum;
cout<<abs(aNum);
}
Other Functions
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