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117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <vector>
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// UNSUPPORTED: libcpp-no-deduction-guides
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// template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
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// deque(InputIterator, InputIterator, Allocator = Allocator())
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// -> deque<typename iterator_traits<InputIterator>::value_type, Allocator>;
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//
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#include <vector>
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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()
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{
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// Test the explicit deduction guides
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{
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const int arr[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
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std::vector vec(std::begin(arr), std::end(arr));
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static_assert(std::is_same_v<decltype(vec), std::vector<int>>, "");
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assert(std::equal(vec.begin(), vec.end(), std::begin(arr), std::end(arr)));
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}
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{
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const long arr[] = {INT_MAX, 1L, 2L, 3L };
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std::vector vec(std::begin(arr), std::end(arr), std::allocator<long>());
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static_assert(std::is_same_v<decltype(vec)::value_type, long>, "");
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assert(vec.size() == 4);
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assert(vec[0] == INT_MAX);
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assert(vec[1] == 1L);
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assert(vec[2] == 2L);
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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.
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// std::vector vec(std::allocator<int>()); // vector (allocator &)
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}
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{
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std::vector vec(1, A{}); // vector (size_type, T)
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static_assert(std::is_same_v<decltype(vec)::value_type, A>, "");
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static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<A>>, "");
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assert(vec.size() == 1);
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}
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{
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std::vector vec(1, A{}, test_allocator<A>()); // vector (size_type, T, allocator)
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static_assert(std::is_same_v<decltype(vec)::value_type, A>, "");
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static_assert(std::is_same_v<decltype(vec)::allocator_type, test_allocator<A>>, "");
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assert(vec.size() == 1);
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}
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{
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std::vector vec{1U, 2U, 3U, 4U, 5U}; // vector(initializer-list)
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static_assert(std::is_same_v<decltype(vec)::value_type, unsigned>, "");
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assert(vec.size() == 5);
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assert(vec[2] == 3U);
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}
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{
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std::vector vec({1.0, 2.0, 3.0, 4.0}, test_allocator<double>()); // vector(initializer-list, allocator)
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static_assert(std::is_same_v<decltype(vec)::value_type, double>, "");
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static_assert(std::is_same_v<decltype(vec)::allocator_type, test_allocator<double>>, "");
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assert(vec.size() == 4);
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assert(vec[3] == 4.0);
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}
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{
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std::vector<long double> source;
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std::vector vec(source); // vector(vector &)
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static_assert(std::is_same_v<decltype(vec)::value_type, long double>, "");
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static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<long double>>, "");
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assert(vec.size() == 0);
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}
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// A couple of vector<bool> tests, too!
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{
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std::vector vec(3, true); // vector(initializer-list)
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static_assert(std::is_same_v<decltype(vec)::value_type, bool>, "");
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static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<bool>>, "");
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assert(vec.size() == 3);
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assert(vec[0] && vec[1] && vec[2]);
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}
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{
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std::vector<bool> source;
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std::vector vec(source); // vector(vector &)
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static_assert(std::is_same_v<decltype(vec)::value_type, bool>, "");
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static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<bool>>, "");
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assert(vec.size() == 0);
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}
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}
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