return string !!!NOT complete

#include<stdio.h>
#include<math.h>
const char * myFunction();
main()
{
    char a[2];


}
//void int sdgf()
const char * myFunction()
{
    char b[]="OK";
    return "b[]";
}
//http://stackoverflow.com/questions/1496313/returning-c-string-from-a-function