Question

I came across some standalone code without headers. I believe it to be straight C/C++, but am not sure. If so, what does the “CLASS” in the following mean? I know it’s not a class declaration or definition. Is this a method of a class named “CLASS”?

void CLASS functionName(){
  //
  //
  //
}

I’m used to seeing <returnType> <functionName>() {...}, but not the above. Am I forgetting something? (Pardon me, as I’ve been in JS and Objective-C lately.)

Answer 1

Although it’s not common AFAIK, it could be that CLASS is a macro as below. Since its name is CLASS, I would say it’s more likely that it’s a macro for a class or namespace.

1. Class Name

class A
{
   void functionName();
};

#define CLASS A::

void CLASS functionName()
{}

2. Namespace

namespace A
{
   void functionName();
};

#define CLASS A::

void CLASS functionName()
{}

3. Calling Convertion

// or __cdecl, etc.
define CLASS __stdcall

4. Others

There could be others (e.g., a macro for a pointer) which are syntactically correct, but they’re less likely in your case. Or it could simply be a comment, as Hostile points out below.