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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-has-no-incomplete-ranges
// template<class T>
// concept range;
#include <ranges>
#include <vector>
#include "test_range.h"
static_assert(std::ranges::range<test_range<cpp20_input_iterator> >);
struct incompatible_iterators {
int* begin();
long* end();
};
static_assert(!std::ranges::range<incompatible_iterators>);
struct int_begin_int_end {
int begin();
int end();
};
static_assert(!std::ranges::range<int_begin_int_end>);
struct iterator_begin_int_end {
int* begin();
int end();
};
static_assert(!std::ranges::range<iterator_begin_int_end>);
struct int_begin_iterator_end {
int begin();
int* end();
};
static_assert(!std::ranges::range<int_begin_iterator_end>);
// Test ADL-proofing.
struct Incomplete;
template<class T> struct Holder { T t; };
static_assert(!std::ranges::range<Holder<Incomplete>*>);
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