Question

Possible Duplicate:
In C, what is the correct syntax for declaring pointers?
good way to write “pointer to something” in C/C++

I am currently reading a book on C. At the moment I read about pointers.

Basically, I think that I have understood the concept. Anyway one thing puzzles me:

Sometimes the author uses

void *foo;

to create a new pointer, but sometimes it’s

void* foo;

Is there a difference? Does it matter? Doesn’t it? When to use what? …?

Answer 1

You can have as many or as few spaces either side of the * as you like. It means exactly the same thing either way:

void*foo;
void *foo;
void* foo;
void * foo;
void                     * foo;
void *                     foo;
void           *           foo;

All are exactly the same thing. If you work on a project, there is usually some “coding style standard” that explains which is preferred in that project. But the compiler won’t do any different based on if/where there are spaces.