Is void a data type in C?

Question

Hi, Can I know if void is data type in "C"? what type of values it can store, if we have int, float, char etc to store the values why is void needed?

Answer 1

It's considered a data type (for organizational purposes), but it is basically a keyword to use as a placeholder where you would put a data type, to represent "no data".

Hence, you can declare a routine which does not return a value as:

void MyRoutine();

But, you cannot declare a variable like this:

void bad_variable;

However, when used as a pointer, then it has a different meaning:

void* vague_pointer;

this declare a pointer, but without specifying what data type it is pointing to.