How to create a Singleton in C?

Question

What\'s the best way to create a singleton in C? A concurrent solution would be nice.

I am aware that C isn\'t the first language you would use for a singleton.

Answer 1

Just do

void * getSingleTon() {
    static Class object = (Class *)malloc( sizeof( Class ) );
    return &object;
}

which works in a concurrent environment too.