[llvm-bugs] [Bug 43090] self reference function variable cannot deduce auto return type

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=43090

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
Clang's diagnostic is correct. You cannot mention a variable with a deduced
type in its own initializer. See [dcl.spec.auto]p11: "If the name of an entity
with an undeduced placeholder type appears in an expression, the program is
ill-formed."

Something about the generic lambda seems to be confusing GCC and MSVC, and
they're not properly enforcing this rule. ICC / EDG enforces the rule properly,
rejecting this like Clang does.

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