quick_exit() function in C++

Syntax

void quick_exit(int val);

Parameter

This method has only one parameter, val, which is an integral value that represents a program's exit state.

• If exit_code is 0 or EXIT SUCCESS, the program has been terminated.
• If the parameter value is non-zero or EXIT FAILURE, the application was not terminated successfully. These functions are called in the reverse order in which they were called.

Return Value

The quick_exit() function had no return value.

Also Read - C++ Interview Questions

Example

Consider the following code snippet :

#include <bits/stdc++.h>
using namespace std;
void func1()
{
    cout << "Inside Function 1" << "\n";
}
void func2()
{
    cout << " Inside Exit Function 2" << "\n";
}
 
int main()
{
    at_quick_exit(func1);
    at_quick_exit(func2);
    quick_exit(0);
    return 0;
}

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Output:

Inside Exit Function 2
Inside Exit Function 1

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Explanation :

In the above code snippet, the func1 was first registered with the quick_exit() function, but the output displays that func2 is called first, which shows that quick_exit() functions are called in the reverse order in which they were called.

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Frequently Asked Questions

What is the Standard Template Library?

The Standard Template Library is a set of template classes written in C++. that provide common data structures and functions, including lists, stacks, and arrays.

What is the quick_exit() function?

The quick_exit() function is used to terminate a process normally without cleaning up the resources.

In which header file the quick_exit() function is defined?

The stdlib header file defines the quick_exit() function.

What is the return value of the quick_exit() function?

The quick_exit() function had no return value.

Conclusion

In this article, we have extensively discussed the quick_exit() function in C++. The article explains the details of the quick_exit() function in C++.
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