4f80c064eb
In the libc++ test suite, we consistently declare main() functions with full parameters and explicitly return from the function. This helps code that compiles the tests with -ffreestanding, where main() is not a special function (with an implicit return and special mangling). This patch fixes a few stray declarations, including in libunwind and libc++abi.
70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// REQUIRES: std-at-least-c++20
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// [range.access.general]/1:
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// In addition to being available via inclusion of the <ranges> header, the customization point objects in
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// [range.access] are available when the header <iterator> is included.
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#include <iterator>
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#include <type_traits>
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#include "test_macros.h"
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template <class CPO, class... Args>
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constexpr void test(CPO& o, Args&&... args) {
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static_assert(std::is_const_v<CPO>);
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static_assert(std::is_class_v<CPO>);
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static_assert(std::is_trivially_copyable_v<CPO>);
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static_assert(std::is_trivially_default_constructible_v<CPO>);
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auto p = o;
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using T = decltype(p);
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(void)o(args...); // to make sure the CPO can actually be used
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// The type of a customization point object, ignoring cv-qualifiers, shall model semiregular.
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static_assert(std::semiregular<T>);
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// The type T of a customization point object, ignoring cv-qualifiers, shall model...
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static_assert(std::invocable<T&, Args...>);
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static_assert(std::invocable<const T&, Args...>);
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static_assert(std::invocable<T, Args...>);
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static_assert(std::invocable<const T, Args...>);
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}
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int a[10];
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constexpr bool test() {
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test(std::ranges::begin, a);
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test(std::ranges::end, a);
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test(std::ranges::cbegin, a);
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test(std::ranges::cdata, a);
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test(std::ranges::cend, a);
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test(std::ranges::crbegin, a);
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test(std::ranges::crend, a);
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test(std::ranges::data, a);
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test(std::ranges::empty, a);
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test(std::ranges::rbegin, a);
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test(std::ranges::rend, a);
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test(std::ranges::size, a);
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test(std::ranges::ssize, a);
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#if TEST_STD_VER >= 26
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// test(std::views::reserve_hint, a);
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#endif
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return true;
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}
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int main(int, char**) {
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test();
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static_assert(test());
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return 0;
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}
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