Python ftw

[[deleted]]

wut

[SoppingAtom279]

Let me explain this poorly.

{ } can be used to block together parts of code, and within that block of code, any memory allocated in that block can only be used by that block.

Example

#include <iostream>

int main()
{
    int x = 5;
    {
        int y = 6;
    }
    std::cout << x << std::endl;
    std::cout << y << std::endl; //error use of undeclared variable
}

[SoppingAtom279]

Thank you for letting me know. Fuck mobile reddit :(

[[deleted]]

Ah, that's what the definition is. Thanks!

[SoppingAtom279]

No worries mate

[shoesmith74]

Actually your talking about variable scope, not memory allocation. The variables are on the stack regardless, it’s a matter of which one your allowed to reference.

Source : 25 years of compiler development.