98d3d5b5da
Reviewed By: #libc, ldionne Spies: mgorny, var-const, ormris, philnik, miscco, hiraditya, steven_wu, jkorous, ldionne, christof, libcxx-commits Differential Revision: https://reviews.llvm.org/D68365
90 lines
2.2 KiB
C++
90 lines
2.2 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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// <vector>
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// vector<bool>
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// void reserve(size_type n);
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#include <vector>
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#include <cassert>
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#include <stdexcept>
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#include "test_macros.h"
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#include "min_allocator.h"
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#include "test_allocator.h"
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TEST_CONSTEXPR_CXX20 bool tests()
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{
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{
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std::vector<bool> v;
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v.reserve(10);
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assert(v.capacity() >= 10);
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}
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{
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std::vector<bool> v(100);
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assert(v.capacity() >= 100);
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v.reserve(50);
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assert(v.size() == 100);
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assert(v.capacity() >= 100);
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v.reserve(150);
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assert(v.size() == 100);
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assert(v.capacity() >= 150);
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}
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#if TEST_STD_VER >= 11
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{
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std::vector<bool, min_allocator<bool>> v;
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v.reserve(10);
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assert(v.capacity() >= 10);
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}
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{
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std::vector<bool, explicit_allocator<bool>> v;
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v.reserve(10);
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assert(v.capacity() >= 10);
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}
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{
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std::vector<bool, min_allocator<bool>> v(100);
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assert(v.capacity() >= 100);
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v.reserve(50);
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assert(v.size() == 100);
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assert(v.capacity() >= 100);
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v.reserve(150);
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assert(v.size() == 100);
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assert(v.capacity() >= 150);
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}
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#endif
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#ifndef TEST_HAS_NO_EXCEPTIONS
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if (!TEST_IS_CONSTANT_EVALUATED) {
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std::vector<bool, limited_allocator<bool, 10> > v;
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v.reserve(5);
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try {
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// A typical implementation would allocate chunks of bits.
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// In libc++ the chunk has the same size as the machine word. It is
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// reasonable to assume that in practice no implementation would use
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// 64 kB or larger chunks.
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v.reserve(10 * 65536);
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assert(false);
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} catch (const std::length_error&) {
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// no-op
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}
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assert(v.capacity() >= 5);
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}
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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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{
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tests();
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#if TEST_STD_VER > 17
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static_assert(tests());
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#endif
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return 0;
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}
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