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How to call some function before main() function in C++?

Last Updated: 11 March 2023

Since it is known that main() method is the entry point of the program. Hence it is the first method that will get executed by the compiler. But this article explains how ...read more

Technical Scripter 2019

How can we write main as a class in C++?

Last Updated: 07 February 2020

As it is already known that main() method is the entry point in any program in C++, hence creating a class named "main" is a challenge and is generally not possible. But t...read more

School Programming

return 0 vs return 1 in C++

Last Updated: 20 June 2022

The Return statement in C/C++:C and C++ support return statements, which are also called jump statements.It is used to return a value from the function or stop the executi...read more

Technical Scripter

Programming Language

Return Statement vs Exit() in main() in C++

Last Updated: 06 May 2023

The return statement in C++ is a keyword used to return the program control from the called function to the calling function. On the other hand, the exit() function in C i...read more

Can main() be overloaded in C++?

Last Updated: 16 October 2019

Predict the output of following C++ program.C highllight=12-5 #include iostreamusing namespace std;int main(int a){ cout a \n; return 0;}int main(char *...read more

Is it fine to write void main() or main() in C/C++?

Last Updated: 17 May 2025

In C/C++ the default return type of the main function is int, i.e. main() will return an integer value by default. The return value of the main tells the status of the exe...read more

Difference between "int main()" and "int main(void)" in C/C++?

Last Updated: 19 October 2023

Note: This was true for older versions of C but has been changed in C11 (and newer versions). In newer versions, foo() is same as foo(void).Consider the following two defi...read more

Command Line Arguments in C++

Last Updated: 26 May 2025

Command-line arguments are arguments that are passed to a program when it is executed from the command line or terminal. They are provided in the command-line shell of ope...read more

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