Breaking out of a loop from within a function called in that loop

Question

I\'m currently trying to figure out a way to break out of a for loop from within a function called in that loop. I\'m aware of the possibility to just have the

Answer 1

If you cannot use the break instruction you could define a local variable in your module and add a second run condition to the for loop. For example like the following code:

#include 
#include 

static bool continueLoop = true;

void foo (int a)
{
    bool doBreak = true;

    printf("a: %d",a);

    if(doBreak == true){
        continueLoop = false;
    }
    else {
        continueLoop = true;
    }
}
int main(void) {
    continueLoop = true;   // Has to be true before entering the loop
    for (int i = 0; (i <= 100) && continueLoop; i++)
    {
        foo(i);
    }
    return 0;
}

Note that in this example this is not exactly a break-instruction, but the forloop will not do another iteration. If you want to do a break you have to insert an if-condition with the variable continueLoop which leads to break:

int main(void) {
    continueLoop = true;   // Has to be true before entering the loop
    for (int i = 0; i <= 100; i++)
    {
        foo(i);
        if(!continueLoop){
            break;
        }
    }
    return 0;
}