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C++ Language > Learn C++ Language > What is the significance of the main() function in C++?
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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){} read less
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