Loops/Nested: Difference between revisions

=={{header|Pike}}==

Pike does not have a generic goto, but break is a special case in that

you can specify labels and break several levels of loop. In practise

this is extremely seldom used in favor of using a state variable or

containing the nest in a function that you <tt>return</tt> from in the

inner loop. However it's there if you want it:

<lang>

int main()

{

// enumerate() normally returns a linearly enumerated array, but

// allows for the forth argument to specify a function that will

// be called and return the value that should be in each cell. We

// create an anonymous function (lambda) that just returns a

// random value.

array a = ({});

for(int i=0; i<20; i++)

a += ({ enumerate( 20, 1, 1, lambda(){return random(20)+1;} ) });

// We could use for() and a[x][y] indexing, but foreach is just

// shorter and easier to use even if the 2D-array becomes less

// obvious.

mynestedloops:

foreach(a, array inner_a) {

foreach(inner_a, int value) {

write(value +" ");

if(value == 20)

break mynestedloops;

}

}

write("\n");

}

</lang>