Question

I want to know if it is possible to end a for loop in C++ when an ending condition (different from the reacheing right number of iterations) is verified. For instance:

for (int i = 0; i < maxi; ++i)     for (int j = 0; j < maxj; ++j)         // But if i == 4 < maxi AND j == 3 < maxj,          // then jump out of the two nested loops. 

I know that this is possible in Perl with the next LABEL or last LABEL calls and labeled blocks, is it possible to do it in C++ or I should use a while loop?

Thank you.

Answer 1

You can use the return keyword: move the nested loop into a subroutine, invoke the subroutine to run the nested loops, and ‘return’ from the subroutine to exit [all] the loops.