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425620ccdd
Reviewed By: #libc, ldionne Spies: daltenty, sdasgup3, ldionne, arichardson, MTC, ChuanqiXu, mehdi_amini, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, aartbik, liufengdb, stephenneuendorffer, Joonsoo, grosul1, Kayjukh, jurahul, msifontes, tatianashp, rdzhabarov, teijeong, cota, dcaballe, Chia-hungDuan, wrengr, wenzhicui, arphaman, Mordante, miscco, Quuxplusone, smeenai, libcxx-commits Differential Revision: https://reviews.llvm.org/D110598
76 lines
1.6 KiB
C++
76 lines
1.6 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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// <string>
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// size_type capacity() const; // constexpr since C++20
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#include <string>
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#include <cassert>
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#include "test_allocator.h"
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#include "min_allocator.h"
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#include "test_macros.h"
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template <class S>
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TEST_CONSTEXPR_CXX20 void
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test(S s, test_allocator_statistics& alloc_stats)
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{
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alloc_stats.throw_after = 0;
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#ifndef TEST_HAS_NO_EXCEPTIONS
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try
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#endif
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{
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while (s.size() < s.capacity())
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s.push_back(typename S::value_type());
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assert(s.size() == s.capacity());
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}
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#ifndef TEST_HAS_NO_EXCEPTIONS
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catch (...)
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{
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assert(false);
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}
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#endif
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alloc_stats.throw_after = INT_MAX;
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}
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TEST_CONSTEXPR_CXX20 bool test() {
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{
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test_allocator_statistics alloc_stats;
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typedef std::basic_string<char, std::char_traits<char>, test_allocator<char> > S;
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S s((test_allocator<char>(&alloc_stats)));
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test(s, alloc_stats);
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s.assign(10, 'a');
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s.erase(5);
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test(s, alloc_stats);
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s.assign(100, 'a');
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s.erase(50);
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test(s, alloc_stats);
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}
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#if TEST_STD_VER >= 11
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{
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typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
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S s;
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assert(s.capacity() > 0);
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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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test();
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#if TEST_STD_VER > 17
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static_assert(test());
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#endif
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return 0;
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}
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