Re: unconstify()/unvolatize() vs g++/clang++

On 11.12.23 01:42, Thomas Munro wrote:
> AFAICS you can't use unconstify()/unvolatize() in a static inline
> function in a .h file, or in a .cpp file, because
> __builtin_types_compatible_p is only available in C, not C++.  Seems
> like a reasonable thing to want to be able to do, no?  I'm not
> immediately sure what the right fix is; would #if
> defined(HAVE__BUILTIN_TYPES_COMPATIBLE_P) && !defined(__cplusplus)
> around the relevant versions of constify()/unvolatize() be too easy?

That seems right to me.

If you are slightly more daring, you can write an alternative definition 
in C++ using const_cast?