d8fad66149
* adds `sized_range` and conformance tests * moves `disable_sized_range` into namespace `std::ranges` * removes explicit type parameter Implements part of P0896 'The One Ranges Proposal'. Differential Revision: https://reviews.llvm.org/D102434
29 lines
762 B
C++
29 lines
762 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: c++03, c++11, c++14, c++17
|
|
// UNSUPPORTED: libcpp-no-concepts
|
|
// UNSUPPORTED: gcc-10
|
|
|
|
// template<class T>
|
|
// concept sized_range;
|
|
|
|
#include <ranges>
|
|
|
|
template <std::ranges::range R>
|
|
consteval bool check_subsumption() {
|
|
return false;
|
|
}
|
|
|
|
template <std::ranges::sized_range R>
|
|
consteval bool check_subsumption() {
|
|
return true;
|
|
}
|
|
|
|
static_assert(check_subsumption<int[5]>());
|