Question

Is there a Macro that can return a unique-string at compile-time, so that it could be used as the name of an objective-c class?

I’m thinking of something like:

#define my_macro(params) \
@implementation my_macro_function_giving_unique_string_(MyTrickyRuntimeExtension) \
  //Do stuff \
@end \

Answer 1

there is a macro __COUNTER__ predefined in Visual Studio that could help

I used iammilind suggestions

#define UNIQUE2(param) YourClassBaseNames##param
#define UNIQUE1(param) UNIQUE2(param)
#define UNIQUE UNIQUE1(__COUNTER__)

class UNIQUE
{

};

class UNIQUE
{

};

counter – returns new count ech time

reference: http://msdn.microsoft.com/en-us/library/b0084kay(v=vs.80).aspx

it is also available in GCC