[Next] [Prev] [Right] [____] [Up] [Index] [Root]
The break statement

The break statement

The statement

> break;

inside an iterative statement (loop) causes immediate exit from the statement. If several loops are nested then execution jumps out of the innermost enclosing loop.

In a for-statement nested inside another for-statement, the statement

> break IDENTIFIER;

causes an exit from the for-loop whose loop identifier is the given identifier. This allows an exit from a loop other than the innermost one.

The break-statement should be carefully distinguished from the continue-statement (see The continue statement).

Example

> // (inefficient) search for the next perfect number above n
> n := 1000;
> repeat
repeat> n +:= 1;
repeat> if n gt 5000 then
repeat|if> print "exceeded limit";
repeat|if> break;
repeat|if> end if;
repeat> until n eq &+Prune(Divisors(n));
exceeded limit

> p := 10037; > for x in [1..100] do for> for y in [1..100] do for|for> if x^2 + y^2 eq p then for|for|if> print x, y; for|for|if> break; for|for|if> end if; for|for> end for; for> end for; 46 89 89 46

> p := 10037; > for x in [1..100] do for> for y in [1..100] do for|for> if x^2 + y^2 eq p then for|for|if> print x, y; for|for|if> break x; for|for|if> end if; for|for> end for; for> end for; 46 89

[Next] [Prev] [Right] [____] [Up] [Index] [Root]