c479e0c994
- Several -Wshadow warnings - Several places where we did not initialize our base class explicitly - Unused variable warnings - Some tautological comparisons - Some places where we'd pass null arguments to functions expecting non-null (in unevaluated contexts) - Add a few pragmas to turn off spurious warnings - Fix warnings about declarations that don't declare anything - Properly disable deprecation warnings in ext/ tests (the pragmas we were using didn't work on GCC) - Disable include_as_c.sh.cpp because GCC complains about C++ flags when compiling as C. I couldn't find a way to fix this one properly, so I'm disabling the test. This isn't great, but at least we'll be able to enable warnings in the whole test suite with GCC.
96 lines
2.9 KiB
C++
96 lines
2.9 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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// <stack>
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// UNSUPPORTED: c++03, c++11, c++14
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// UNSUPPORTED: clang-5, apple-clang-9
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// UNSUPPORTED: libcpp-no-deduction-guides
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// Clang 5 will generate bad implicit deduction guides
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// Specifically, for the copy constructor.
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// template<class Container>
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// stack(Container) -> stack<typename Container::value_type, Container>;
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//
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// template<class Container, class Allocator>
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// stack(Container, Allocator) -> stack<typename Container::value_type, Container>;
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#include <stack>
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#include <vector>
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#include <list>
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#include <iterator>
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#include <cassert>
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#include <cstddef>
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#include <climits> // INT_MAX
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#include "test_macros.h"
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#include "test_iterators.h"
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#include "test_allocator.h"
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struct A {};
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int main(int, char**)
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{
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// Test the explicit deduction guides
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{
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std::vector<int> v{0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
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std::stack stk(v);
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static_assert(std::is_same_v<decltype(stk), std::stack<int, std::vector<int>>>, "");
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assert(stk.size() == v.size());
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assert(stk.top() == v.back());
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}
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{
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std::list<long, test_allocator<long>> l{10, 11, 12, 13, 14, 15, 16, 17, 18, 19 };
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std::stack stk(l, test_allocator<long>(0,2)); // different allocator
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static_assert(std::is_same_v<decltype(stk)::container_type, std::list<long, test_allocator<long>>>, "");
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static_assert(std::is_same_v<decltype(stk)::value_type, long>, "");
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assert(stk.size() == 10);
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assert(stk.top() == 19);
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// I'd like to assert that we've gotten the right allocator in the stack, but
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// I don't know how to get at the underlying container.
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}
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// Test the implicit deduction guides
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{
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// We don't expect this one to work - no way to implicitly get value_type
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// std::stack stk(std::allocator<int>()); // stack (allocator &)
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}
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{
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std::stack<A> source;
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std::stack stk(source); // stack(stack &)
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static_assert(std::is_same_v<decltype(stk)::value_type, A>, "");
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static_assert(std::is_same_v<decltype(stk)::container_type, std::deque<A>>, "");
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assert(stk.size() == 0);
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}
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{
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// This one is odd - you can pass an allocator in to use, but the allocator
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// has to match the type of the one used by the underlying container
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typedef short T;
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typedef test_allocator<T> Alloc;
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typedef std::deque<T, Alloc> Container;
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Container c{0,1,2,3};
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std::stack<T, Container> source(c);
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std::stack stk(source, Alloc(2)); // stack(stack &, allocator)
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static_assert(std::is_same_v<decltype(stk)::value_type, T>, "");
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static_assert(std::is_same_v<decltype(stk)::container_type, Container>, "");
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assert(stk.size() == 4);
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assert(stk.top() == 3);
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}
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return 0;
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}
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