For loop inside While loop not breaking - Matlab

Question

Flag = 0;

while Flag == 0
    for x = 1:10
        if x == 3
            Flag = 1;
        end % end: if
    end % end; for
end % end: while

Can anyone tell me why the while loop condition is not triggering when x is three? It runs the entire for loop and I get a value of 10. I am trying to have a flag trigger when a specific condition is met in the for loop.

Thank you!

Because a while loop only checks its guard at the start of each iteration. — Scott Hunter
– Scott Hunter, Commented Mar 27 at 18:33

Wolfie · Accepted Answer · 2025-03-28 08:28:51Z

5

If you want to break out of the for loop early then you should use break

Flag = 0;

while Flag == 0
    for x = 1:10
        if x == 3
            Flag = 1;
            break     % Exit the 'for' loop
        end
    end
end

answered Mar 28 at 8:28

Wolfie

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