[LLVMbugs] [Bug 24134] Clang ignores nonnull attributes on declarations following definitions when compiling as C++; behavior differs from gcc and EDG

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24134

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |richard-llvm at metafoo.co.uk
         Resolution|---                         |WONTFIX

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
(From mailing list discussion:)

We don't support adding attributes after a definition. (In the case where the
attributes affect the generated code for the definition, that way lies madness,
and we don't distinguish between those attributes and others for consistency --
note that nonnull *does* affect code generation in some cases.) The difference
between C and C++ here is most likely exactly what you suspect (the first
declaration is only a tentative definition in C).

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