How to rename a function in C at runtime or compile time?

Question

I assume that constant must be initialized to a constant value at compile time, but following code the return value of ge_const() is assigned to x which will be collected at run time. So this must cause an error but I am getting the output as 50. Can someone clarify the detail?

main()
{
    const int x = get_const();
    printf("%d", x);
}
int get_const()
{
    return 50;
}

Answer 1

use preprocessor like

#define FunctionName() newFunctionName()

and there is no other way.

Comments

thanks for selecting as best ans.

Answer 2

Using help of macros. You can do this.

Answer 3

If you are looking a function to be identified with two names then try typedef.
If want to change the name permanently then use macro as Shivam suggested.