[cfe-dev] better way to test for explicit C++ constructor?

[Peeter Joot]

But why not instead just directly look at the initializer for
> theBigGiantGlobalVariable, which will be a CXXConstructExpr pointing
> directly to the default constructor?  You can then walk over the
> initializers in that constructor — which, since it's an implicitly-defined
> default constructor, should all be non-trivial — and see what constructors
> they use, etc.
>
>
sounds reasonable.  Why not is because I didn't know enough to do this the
smart way.


> Anyway, this would also be a reasonable enhancement request for
> -Wglobal-constructors;  we could easily say:
>   warning: declaration requires a global constructor
>   ...
>   note: because type 'a' has a non-trivial default constructor
>   note: because type 'b' has a non-trivial default constructor
>   note: because type 'nowHasConstructor' has a non-trivial default
> constructor
>
>
That sounds excellent.  Is -Wglobal-constructors documented?  I don't see
it in the User manual?

-- 
Peeter
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