Break Out To Top Of Loop

[JLucien]

Hi All.

I have a piece of code in a while loop where if something happens, I want to go back to the start of the loop. Is there any way to do that?

while(placementFailure)
    {
        if(d=='h')
        {
            cS=checkSpaces(grid, col, row, BoatSize, d);
            if(cS==1)
            {
                d=getDirection(rand()%10);
                col=resetColAndRow(col, row, BoatSize, d);
                GO BACK TO TOP OF LOOP HERE...
            }
            cout << "do edit grid from IF HORIZONTAL" << endl;
            editGrid(grid, col, row, BoatSize, d);
            return 0;
        }//end of 'if horizontal'
        else
        {
            cS=checkSpaces(grid, col, row, BoatSize, d);
            cout << "checkSpaces is: " << checkSpaces << endl;
            if(cS==1)
            {
                d=getDirection(rand()%10);
                col=resetColAndRow(col, row, BoatSize, d);
                cout << "if not checkSpaces..." ;
                GO BACK TO TOP OF LOOP HERE...
            }
            cout << "do edit grid FROM VERTICAL" << endl;
            editGrid(grid, col, row, BoatSize, d);
            return 0;
        }
     }
}//end of setBoat function 

Thanks!

[Lynx876]

You could try nested while loops, and add the break; keyword when you want to end the while loop you're in.

bool exit = false;

while( ! exit )
{
    while( placementFailure )
    {
        ...code
        break;
    }

//this will restart the second while loop
}

[Mathes]

continue; could help you too.

int i = 0;
while (i != 10)
{
    i++;
    continue;
    cout << "cat\n";
}

continue jumps back to the beginning of the loop. so in this little example cat will never be printed.

[modoran]

Just use continue keyword.

[Lynx876]

Oh, or that! I've never used continue; :O

[JLucien]

continue

works great, thanks!