C program without main

The main function is the entry point of a program, and it is required for the program to execute. A C program cannot run without a main function. The main function is where program execution begins, and it typically contains the code that performs the program’s tasks.

Attempting to create a C program without a main function will result in a compilation error, and the program will not run.

Here’s a simple example of a C program with a main function:

#include <stdio.h>

int main() {
    printf("Hello, World!\n");
    return 0;
}

This is a standard C program that prints “Hello, World!” to the console when executed. The main function is where the program starts execution, and it contains the code for this simple task.