Question

I’m coming from javascript/php/python and probably I’m missing something, here is the code:

const int a = 50;
const int c = 100;
const int d = 100;
int endX = c + a;
int endY = d;
int startX, startY, b;

I get

ex1.4.c:6: error: initializer element is not constant
ex1.4.c:7: error: initializer element is not constant

Does someone have an explanation?

Answer 1

If you are declaring endX as a global variable the error makes sense.

The reason is that global variables are initialized in compiling time, and you are trying to initialize endX as an operation that must be done in execution time.