c2df707666
There are a handful of standard library types that are intended
to support CTAD but don't need any explicit deduction guides to
do so.
This patch adds a dummy deduction guide to those types to suppress
-Wctad-maybe-unsupported (which gets emitted in user code).
This is a re-application of the original patch by Eric Fiselier in
fcd549a7d8 which had been reverted due to reasons lost at this point.
I also added the macro to a few more types. Reviving this patch was
prompted by the discussion on https://llvm.org/D133425.
Differential Revision: https://reviews.llvm.org/D133535
31 lines
738 B
C++
31 lines
738 B
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// UNSUPPORTED: no-threads
|
|
// UNSUPPORTED: c++98, c++03, c++11, c++14
|
|
|
|
// <mutex>
|
|
|
|
// unique_lock
|
|
|
|
// Make sure that the implicitly-generated CTAD works.
|
|
|
|
#include <mutex>
|
|
|
|
#include "test_macros.h"
|
|
|
|
int main(int, char**) {
|
|
std::mutex mutex;
|
|
{
|
|
std::unique_lock lock(mutex);
|
|
ASSERT_SAME_TYPE(decltype(lock), std::unique_lock<std::mutex>);
|
|
}
|
|
|
|
return 0;
|
|
}
|