Eric Fiselier a32a775e66 Fix PR40495 - is_invokable_v<void> does not compile ...

The meta-programming that attempted to form the invoke call expression
was not in a SFINAE context. This made it a hard error to provide
non-referencable types like 'void' or 'void (...) const'.

This patch fixes the error by checking the validity of the call
expression within a SFINAE context.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@352522 91177308-0d34-0410-b5e6-96231b3b80d8

2019-01-29 18:01:14 +00:00

..

allocator.adaptor

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

any

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

charconv

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

function.objects

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

intseq

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

memory

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

meta

Fix PR40495 - is_invokable_v<void> does not compile

2019-01-29 18:01:14 +00:00

optional

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

ratio

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

smartptr/unique.ptr

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

template.bitset

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

time

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

tuple

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

type.index

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

utilities.general

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

utility

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

utility.requirements

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

variant

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00

nothing_to_do.pass.cpp

Update more file headers across all of the LLVM projects in the monorepo

2019-01-19 10:56:40 +00:00