Stack order issue

Using the following code:

Code:

---

{
        int a,b;
        int Loop;
        int c;

---

I find the following facts (in release mode):

Quote:

---

&a: 0012FED4
&b: 0012FED8
&Loop: 0012FED0
&c: 0012FEDC

---

I find it odd the way the variables are positioned in memory. Shouldn't the address of 'c' be 4 less than the address of 'Loop'? Ie, shouldn't 'c' have been pushed onto the stack after 'Loop'?

EDIT: Also, would I be correct in saying that the order they were pushed onto the stack was 'c','b','a','Loop'?

Do you use them at all, or just declare them? Perhaps they also look at the frequency in which you use a variable before determining which one get's pushed on first.

Yeah I guess the compiler does its own thing.

> I find the following facts (in release mode):
The only time you can compare pointers is when you have two pointers to different elements of the same array, or different elements of the same block of allocated memory.

So taking any pair of local variables and trying to figure out a 'before' or 'after' relationship is simply a curiosity exercise. Ordering and padding are both very specific to the compiler.

By the time the compiler optimiser has finished, it may no longer exist as a variable, only as a register.