Is there a difference between i==0 and 0==i?

Question

First code:

  if(i==0) {// do instructions here}

Second code:

  if(0==i) { // do instructions here }

What

Answer 1

For C++, it's possible, though unlikely, that there could be a difference. It depends upon what i's type is. e.g.

struct Foo
{
    int x;
};

bool operator==(Foo lhs, int rhs)
{
    return lhs.x == rhs;
}

bool operator==(int lhs, Foo rhs)
{
    std::cout << "Hi!";
    return true;
}

Someone who writes code like that should of course be shot.