singleton::exists() addition for K_GLOBAL_STATIC

Thiago Macieira thiago at
Mon May 5 16:06:57 BST 2008

On Monday 05 May 2008 15:15:56 David Faure wrote:
> > I'd go as far now as marking all of those extra methods
> > __attribute__((always_inline)) to make sure gcc never generates them if
> > they're not used.
> Is this really necessary with template classes? I thought this happened
> automatically.

True, for template classes, unless you're on Windows and you exporting the 

But this isn't a template class (the KDE 3 equivalent was). This is an 
anonymous struct:

static struct K_GLOBAL_STATIC_STRUCT_NAME(NAME)                            \

It can't be a template class because it might still generate global symbols, 
especially if you're not building with visibility support. This way, we 
defined an anonymous class on a file-static variable. There are no exports.

(Except on one broken compiler that doesn't like anonymous structs)

> If not, then it sounds like something for kdemacros.h.cmake
> (KDE_ALWAYS_INLINE?). But it does sound like something people will abuse
> instead of letting the compiler choose :)


  Thiago Macieira  -  thiago (AT) - thiago (AT)
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