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LONG_MAX constant with example in C++

C++ LONG_MAX constant: Here, we are going to learn about the LONG_MAX macro constant of climits header in C++.
Submitted by IncludeHelp, on May 03, 2019

C++ LONG_MAX macro constant

LONG_MAX constant is a macro constant which is defied in climits header, it is used to get the maximum value of a long int object, it returns the maximum value that a long int object can store, which is 9223372036854775807 (on 32 bits compiler).

Note:

• The actual value depends on the compiler architecture or library implementation.
• We can also use <limits.h> header file instead of <climits> header as LONG_MAX constant is defined in both of the libraries.

Syntax

Syntax of LONG_MAX constant:

LONG_MAX

Sample Input and Output

Constant call:
cout << LONG_MAX;

Output:
9223372036854775807

Example 1

C++ code to demonstrate example of LONG_MAX constant with climits header:

// C++ code to demonstrate example of 
// LONG_MAX constant with climits header
#include<iostream>
#include<climits>
using namespace std;

int main()
{
   //prinitng the value of LONG_MAX
    cout<<"LONG_MAX: "<<LONG_MAX<<endl;
    return 0;
}

Output

LONG_MAX: 9223372036854775807

Example 2

C++ code to demonstrate example of LONG_MAX constant with limits.h header file:

// C++ code to demonstrate example of 
// LONG_MAX constant with <limits.h> header file
#include<iostream>
#include<limits.h>
using namespace std;

int main()
{
   //prinitng the value of LONG_MAX
    cout<<"LONG_MAX: "<<LONG_MAX<<endl;
    return 0;
}

Output

LONG_MAX: 9223372036854775807