Re: [boost] [wave][function] Suppressing gcc-4.4.1 warnings

Subject: Re: [boost] [wave][function] Suppressing gcc-4.4.1 warnings
From: Jeffrey Bosboom (jbosboom_at_[hidden])
Date: 2009-11-07 02:49:56

Gottlob Frege wrote:
> 2. What is left for reinterpret_cast to do?  casting to/from ints to
> pointers, etc?  (useful in lockfree programming, etc).  Which would be
> better accomplished with unions I suppose.

Casting from pointer-to-function to pointer-to-object types (e.g., 
void*) is conditionally-supported for reinterpret_cast, and there's a 
guarantee that if both directions are supported, you can call through 
the pointer after casting it back to its original type.  static_cast 
can't do this.  (There's also the question of why you'd do this at all 
-- if you really need a typeless function pointer, you can cast to 
void(*)() with static_cast.)

--Jeffrey