How can I replace increment operators when using NSInteger and int properties

I am updating some old code to our new coding standards. In this code, the int variable was incremented with the old ++ operator. Now, the int variable is a property so using ++ isn't working so well. I'm not supposed to use dots and I'm not supposed 开发者_C百科to reference ivars directly.

Here is what I have come up with (totalHeads is the property of type int):

declaration section

@synthesize totalHeads = _totalHeads;

further down

[self setTotalHeads:[self totalHeads] + 1];

which replaces the old code of

_totalHeads ++;

Is there a more elegant way to do this?

(apologies if this is a duplicate question, I was having a hard time figuring out good search terms)

---

You can use the property and the postincrement operator. This code:

@interface Foo: NSObject
@property (assign) int bar;
@end

@implementation Foo
@synthesize bar;
@end

int main() {
    Foo *foo = [[Foo alloc] init];
    foo.bar = 3;
    foo.bar++;
    NSLog(@"foo.bar: %d", foo.bar);
    [foo release];
    return 0;
}

produces this result:

2011-06-21 21:17:53.552 Untitled[838:903] foo.bar: 4

---

It doesn't really matter that's a property - it's still an int and, unless you declare a different name for ivar associated with the property, you can still use totalHeads++;

---

If, as you've mentioned in the comments, you're not allowed to use dot syntax to access setter methods, then [self setTotalHeads:[self totalHeads] + 1]; is the only way to do it.

Coding standards that disallow use of language features under all circumstances are unproductive. Maybe you can use this example to make your case.

---

Based on a question about converting between NSInteger and int, I came up with the following:

- (NSInteger) incrementNSInteger: (NSInteger) nsInt byNumber: (int)increment
{
    int integer = nsInt;
    integer += increment;
    NSInteger result = integer;

    return result;
}

To use:

NSInteger one;
NSInteger two = [self incrementNSInteger: one byNumber: 1];

If you supply "byNumber" with -1, it'll decrement. Similarly, 2 increments by 2, -2 decrements by 2. (Why ++ and -- aren't sufficient baffles me).