Question

When I checked my application for memory leaks it is showing 12 leaks. What will be the effect of this?

I used global variables as shown below

#import "file1.m"

int num;

#import "file2.m"

extern int num;
num = 10;

Can this cause memory leaks?

Anyone please help. I am a beginner in programming.

Answer 1

I very much doubt it. Memory leaks are dynamic allocations (in other words, run-time allocation rather than compile-time) where you forget to free them. Global variables like num are supposed to exist for the duration of the executable so they should not be considered a leak.

I suspect you’ll have to look elsewhere.

Perhaps if you posted the output from your leak checker, we could help out some more.