Is there some ninja trick to make a variable constant after its declaration?

Question

I know the answer is 99.99% no, but I figured it was worth a try, you never know.

void SomeFunction(int a)
{
    // Here some processing happens on a, for ex         


        

Answer 1

this might be one way to do it, if you are just trying to avoid another name. i suggest you think twice before using this.

int func ()
{
    int a;
    a %= 10;

const int const_a = a;
#define a const_a

    a = 10;  // this will cause an error, as needed.
#undef a
}