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What is the significance of the main() function in C++?

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The main function serves as the starting point for program execution. It usually controls program execution by directing the calls to other functions in the program
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Experienced Computer trainer having worked in IT sector for 20 years.

The main function is an integral part of the programming languages such as C, C++, and Java. The main function in C is the entry point of a program where the execution of a program starts. It is a user-defined function that is mandatory for the execution of a program because when a C program is executed,...
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The main function is an integral part of the programming languages such as C, C++, and Java. The main function in C is the entry point of a program where the execution of a program starts. It is a user-defined function that is mandatory for the execution of a program because when a C program is executed, the operating system starts executing the statements in the main() function.

 

Syntax of C main() Function

return_type main() {

    // Statement 1;

    // Statement 2;

    // and so on..

    return;

}

We can write the main function in many ways in C language as follows:

 

int main(){} or int main(void){}

main(){} or void main(){} or main(void){} or void main(void){}

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