Question

Okay, well let’s say I have a variable list of items. It can be any number of items. Each item can be either 0,1,2,3, or 4. So I make a loop.

foreach(item in allitems)
{
    if (item == 0) continue;
    do stuff for items 1-4.
}

Let’s say that every single item it goes through is 0. Well what if I want to execute a specific line of code in that case? Of course I could do something like

int count = 0
foreach(item in allitems)
{
    if (item == 0) {count++; continue;}
    do stuff for items 1-4.
}
if(count == allitems.Count())
{
    do stuff
}

But I always felt cheap using count variables to do something like this. Is there any thing I can do that doesn’t feel like duct-taping a solution together?

Answer 1

There’s no need to use a count here – just keep a flag which is set if you get past the check, rather than within the check:

bool anyNonZeroItems = false;
foreach(item in allitems)
{
    if (item == 0)
    {
        continue;
    }
    anyNonZeroItems = true;
    // Whatever else
}
if (!anyNonZeroItems)
{
    // Everything was 0 (or the collection was empty)
}