What is a void main() in the C programming language?

In C, `void main()` is not a standard signature for the `main` function. The correct signature for the `main` function in C is `int main()`. The `int` return type indicates that the function returns an integer value, typically used to convey the exit status of the program to the operating system. The `void` keyword indicates that the function does not return any value. Using `void main()` is a common mistake or misunderstanding, and it may not be supported by all compilers. read less

In the C programming language, void main() is not a valid signature for the main function. The correct signature for the main() function in C is either int main() or int main(int argc, char *argv[]). The main() function serves as the entry point of a C program. It is where the execution of the program begins. The int return type indicates that the main() function should return an integer value to the operating system upon completion. By convention, a return value of 0 typically indicates successful execution, while a non-zero value indicates an error or abnormal termination. Here's a brief explanation of the correct signatures: int main(): This signature is used when your program doesn't require any command-line arguments. The absence of parameters means that the program doesn't receive any arguments from the command line. int main(int argc, char *argv[]): This signature is used when your program needs to accept command-line arguments. The argc parameter represents the count of command-line arguments passed to the program, and argv[] is an array of strings containing those arguments. read less