Why do we use void function in C?

In computer programming, when void is used as a function return type, it indicates that the function does not return a value. When void appears in a pointer declaration, it specifies that the pointer is universal. When used in a function’s parameter list, void indicates that the function takes no parameters.

Why we use void data type?

The void data type is typically used in the definition and prototyping of functions to indicate that either nothing is being passed in and/or nothing is being returned.

What is * Before function in C?

The * refers to the return type of the function, which is void * .

What is void function?

Void functions are created and used just like value-returning functions except they do not return a value after the function executes. In lieu of a data type, void functions use the keyword “void.” A void function performs a task, and then control returns back to the caller–but, it does not return a value.

Is void a keyword in C?

void. The void keyword meaning nothing or no value. Here, the testFunction() function cannot return a value because its return type is void.

What is void in C programming?

When used as a function return type, the void keyword specifies that the function doesn’t return a value. When used for a function’s parameter list, void specifies that the function takes no parameters. When used in the declaration of a pointer, void specifies that the pointer is “universal.”

What is the void data type in C?

The void type, in several programming languages derived from C and Algol68, is the type for the result of a function that returns normally, but does not provide a result value to its caller. Usually such functions are called for their side effects, such as performing some task or writing to their output parameters.

What is void * function in C?

What does void * function mean in C?

When used as a function return type, the void keyword specifies that the function doesn’t return a value. When used for a function’s parameter list, void specifies that the function takes no parameters. A void* pointer can be converted into any other type of data pointer.

What is void type in C?

What is void display in C?

void means that the function will not return anything. It is also possible to define a function without any argument. See an example over this. #include void display() { printf(“Function with no argument\n”); } int main() { display(); return 0; } Function with no argument.

How do you write a void function?

A void function has a heading that names the function followed by a pair of parentheses. The function identifier/name is preceded by the word void. The parameter list with the corresponding data type is within the parentheses. The body of the function is between the pair of braces.