346a29908e
Found while running libc++'s test suite with MSVC's STL. This is structured into a series of commits for easier reviewing; I could also split this into smaller PRs if desired. * Add void-casts for `invoke_r` calls to fix MSVC STL `[[nodiscard]]` warnings. + Our rationale is that if someone is calling `invoke_r<NonVoidType>`, it sure looks like they care about the return value. * Add `[[maybe_unused]]` to silence `-Wunused-parameter` warnings. + This happens because the parameters are used within `LIBCPP_ASSERT`, which vanishes for MSVC's STL. This also motivates the following changes. * Add `[[maybe_unused]]` to fix `-Wunused-variable` warnings. * Always void-cast `debug_comparisons` to fix `-Wunused-variable` warnings. + As this was already unused with a void-cast in one `_LIBCPP_HARDENING_MODE` branch, I'm simply lifting it next to the variable definition. * Add `[[maybe_unused]]` to fix `-Wunused-local-typedef` warnings.
40 lines
1.5 KiB
C++
40 lines
1.5 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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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME
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// template<container-compatible-range<T> R>
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// constexpr void append_range(R&& rg); // C++23
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#include <deque>
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#include "../../insert_range_sequence_containers.h"
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#include "test_macros.h"
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// Tested cases:
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// - different kinds of insertions (appending an {empty/one-element/mid-sized/long range} into an
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// {empty/one-element/full} container);
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// - appending move-only elements;
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// - an exception is thrown when copying the elements or when allocating new elements.
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int main(int, char**) {
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static_assert(test_constraints_append_range<std::deque, int, double>());
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for_all_iterators_and_allocators<int, const int*>([]<class Iter, class Sent, class Alloc>() {
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test_sequence_append_range<std::deque<int, Alloc>, Iter, Sent>([]([[maybe_unused]] auto&& c) {
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LIBCPP_ASSERT(c.__invariants());
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});
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});
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test_sequence_append_range_move_only<std::deque>();
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test_append_range_exception_safety_throwing_copy<std::deque>();
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test_append_range_exception_safety_throwing_allocator<std::deque, int>();
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return 0;
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}
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