C++ <cstdlib> - abs() Function

The C++ <cstdlib> abs() function returns the absolute value (positive value) of the specified integral value. For example - absolute value of integral value x will be |x|.

Syntax

C++98
C++11

int abs (int x);
long int abs (long int x);

int abs (int x);
long int abs (long int x);
long long int abs (long long int x);

Parameters

`x`	Specify an integral value whose absolute value need to be determined.

Return Value

Returns the absolute value (positive value) of integral argument.

Example:

The example below shows the usage of <cstdlib> abs() function.

#include <iostream>
#include <cstdlib>
using namespace std;
 
int main (){
  cout<<"abs(10) = "<<abs(10)<<"\n";
  cout<<"abs(-10) = "<<abs(-10)<<"\n";
  cout<<"abs(50) = "<<abs(-50)<<"\n";
  cout<<"abs(-50) = "<<abs(50)<<"\n";  
  return 0;
}

The output of the above code will be:

abs(10) = 10
abs(-10) = 10
abs(50) = 50
abs(-50) = 50

❮ C++ <cstdlib> Library