NSString compare:options:range: - which value to pass for no options?

Question

I want to call [NSString compare:options:range:] and pass no options.

What should be the correct value to provide for the options parameter?

Both nil and NULL produce a warning in Xcode : "Incompatible pointer to integer conversion sending 'void *' to parameter of type ... "

Answer 1

Just pass 0. Alternatively, if you've been around the Mac block a few times, you might catch yourself passing kNilOptions which is just another name for 0, but implies the relevant flagginess.

Answer 2

You should pass 0. The options argument is a bit mask, which really means it's just an integer. That's also why the warning says "integer conversion".