Preprocessor macro value to Objective-C string literal

Question

I have a preprocessor macro defined in build settings

FOO=BAR

That value I want to massage into an Objective-C string literal that can be passe

Answer 1

Here's a modified version of Adam Rosenfield's answer with clearer semantics:

#define NSStringize_helper(x) #x
#define NSStringize(x) @NSStringize_helper(x)

I use it to replace code like this:

case OneEnumValue: name = @"OneEnumValue"; break;
case AnotherEnumValue: name = @"AnotherEnumValue"; break;

with this:

#define case_for_type(type) case type: name = NSStringize(type); break

case_for_type(OneEnumValue);
case_for_type(AnotherEnumValue);