Flipping a BOOL value

Question

I have a program in which I want to flip a BOOL value without doing this:

@property (nonatomic, assign) BOOL *boolValue;

if (boolValue == YES) {
    boolValue = NO;
}
if (boolValue == NO) {
    boolValue = YES;
}

Is there a method I can use to switch the value without using this way?

[related](http://stackoverflow.com/questions/541289/objective-c-bool-vs-bool); looks like you can just `boolValue ^= 1`. — Kenney, Oct 27 '15 at 00:24
Kenney has the right idea. At the very least, for the second statement you can use an `else`. — intcreator, Oct 27 '15 at 00:44

score 4 · Accepted Answer · answered Oct 27 '15 at 00:34

You have several things wrong here.

Your code becomes:

@property (nonatomic, assign) BOOL boolValue;

boolValue = !boolValue; // "flip" the BOOL value

BTW - for point #2 you should write such if statements like this:

if (boolValue) { // is it YES?

or:

if (!boolValue) { // is it NO?

But neither are needed to flip the value.

1 Answers1