The llabs() function can be thought as the long long int version of abs().
It is defined in <cstdlib> header file.
[Mathematics] |x| = llabs(x) [C++ Programming]
llabs() prototype [As of C++ 11 standard]
long long llabs(long long x); long long int llabs(long long int x);
The llabs() function takes a single argument of type long long or long long int and returns a value of same type.
llabs() Parameters
x: A long long or long long int data whose absolute value is returned.
llabs() Return value
The llabs() function returns the absolute value of x i.e. |x|.
Example: How llabs() function works in C++?
#include <iostream>
#include <cstdlib>
using namespace std;
int main()
{
long long x,y;
x = -79182028361LL;
y = 129301730192LL;
cout << "llabs(" << x << ") = |" << x << "| = " << llabs(x) << endl;
cout << "llabs(" << y << ") = |" << y << "| = " << llabs(y) << endl;
return 0;
}
When you run the program, the output will be:
llabs(-79182028361) = |-79182028361| = 79182028361 llabs(129301730192) = |129301730192| = 129301730192
