Thread: Program segfaults when trying to print non-null integer type value

Ill edit your code to show whats happening:

Code:

if(active->ptr->threadId == NULL)
{
    printf("null actve\n");
}
else
{
    printf("not null\n")
}

//always gets executed, including when the pointer is null
printf("id: %d\n", (int)(*(active->ptr->threadId)));

Its best practice to always surround these blocks of code (if, while, etc) with {}, even if the content is one line.

the pointer is never null.

missing a semicolon there after the printf

D'oh, good catch Epy.

foolfoolz, why are you posting code different from what you are running? You obviously arent running this code, because its syntactically incorrect and therefore cannot be compiled. Make the changes suggested above, recompile, and test again. If problems persist, post your actual code, and give more context, as well as any other useful information.