Synthesize Singleton

SynthesizeSingleton.h

#define SYNTHESIZE_SINGLETON_FOR_CLASS_WITH_CUSTOM_METHOD_NAME(classname, methodname) \
\
static classname *shared##classname = nil; \
\
+ (classname *)methodname \
{ \
	@synchronized(self) \
	{ \
		if (shared##classname == nil) \
		{ \
			shared##classname = [[self alloc] init]; \
		} \
	} \
	\
	return shared##classname; \
}

#define SYNTHESIZE_SINGLETON_FOR_CLASS(classname) \
\
SYNTHESIZE_SINGLETON_FOR_CLASS_WITH_CUSTOM_METHOD_NAME(classname, shared##classname)