[cxx-abi-dev] C++17 mangling for result of lambda conversion function

[Richard Smith]

On 5 October 2016 at 11:54, Hubert Tong <hstong at ca.ibm.com> wrote:

> In N4604 subclause 5.1.5 [expr.prim.lambda] paragraph 7, the conversion
> function to a pointer-to-function is constexpr.
> This means that the resulting pointer-to-function may be used as a
> template non-type argument and thus need a mangling.
>
> Clang currently mangles as a member of the closure type named __invoke,
> and GCC seems to use _FUN in place of __invoke.
> I find the Clang name to be less jarring.
>
I'd be fine with specifying either of these, or with some new custom
mangling. I note that EDG uses the _FUN mangling, like GCC, but unlike GCC
and Clang, does not make the name visible to class member name lookup.
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