llvm-project/libcxx/test/std/strings/basic.string/range_concept_conformance.compile.pass.cpp
Christopher Di Bella fa3e26266c [libcxx][iterator][ranges] adds forward_iterator and forward_range
Implements parts of:
    * P0896R4 The One Ranges Proposal`

Depends on D100271.

Differential Revision: https://reviews.llvm.org/D100275
2021-05-03 20:46:18 +00:00

29 lines
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//===----------------------------------------------------------------------===//
//
// 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
// string
#include <string>
#include <concepts>
#include <ranges>
namespace stdr = std::ranges;
static_assert(std::same_as<stdr::iterator_t<std::string>, std::string::iterator>);
static_assert(stdr::common_range<std::string>);
static_assert(stdr::forward_range<std::string>);
static_assert(std::same_as<stdr::iterator_t<std::string const>, std::string::const_iterator>);
static_assert(stdr::common_range<std::string const>);
static_assert(stdr::forward_range<std::string const>);