122 lines
3.0 KiB
C++
122 lines
3.0 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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// explicit basic_string(basic_string_view<CharT, traits> sv, const Allocator& a = Allocator());
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#include <string>
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#include <string_view>
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#include <stdexcept>
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#include <algorithm>
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#include <cassert>
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#include "test_macros.h"
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#include "test_allocator.h"
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#include "min_allocator.h"
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template <class charT>
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void
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test(std::basic_string_view<charT> sv)
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{
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typedef std::basic_string<charT, std::char_traits<charT>, test_allocator<charT> > S;
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typedef typename S::traits_type T;
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typedef typename S::allocator_type A;
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{
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S s2(sv);
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LIBCPP_ASSERT(s2.__invariants());
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assert(s2.size() == sv.size());
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assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
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assert(s2.get_allocator() == A());
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assert(s2.capacity() >= s2.size());
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}
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{
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S s2;
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s2 = sv;
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LIBCPP_ASSERT(s2.__invariants());
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assert(s2.size() == sv.size());
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assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
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assert(s2.get_allocator() == A());
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assert(s2.capacity() >= s2.size());
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}
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}
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template <class charT, class A>
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void
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test(std::basic_string_view<charT> sv, const A& a)
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{
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typedef std::basic_string<charT, std::char_traits<charT>, A> S;
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typedef typename S::traits_type T;
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{
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S s2(sv, a);
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LIBCPP_ASSERT(s2.__invariants());
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assert(s2.size() == sv.size());
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assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
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assert(s2.get_allocator() == a);
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assert(s2.capacity() >= s2.size());
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}
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{
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S s2(a);
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s2 = sv;
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LIBCPP_ASSERT(s2.__invariants());
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assert(s2.size() == sv.size());
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assert(T::compare(s2.data(), sv.data(), sv.size()) == 0);
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assert(s2.get_allocator() == a);
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assert(s2.capacity() >= s2.size());
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}
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}
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bool test() {
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{
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typedef test_allocator<char> A;
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typedef std::basic_string_view<char, std::char_traits<char> > SV;
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test(SV(""));
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test(SV(""), A(2));
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test(SV("1"));
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test(SV("1") ,A(2));
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test(SV("1234567980"));
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test(SV("1234567980"), A(2));
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test(SV("123456798012345679801234567980123456798012345679801234567980"));
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test(SV("123456798012345679801234567980123456798012345679801234567980"), A(2));
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}
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#if TEST_STD_VER >= 11
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{
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typedef min_allocator<char> A;
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typedef std::basic_string_view<char, std::char_traits<char> > SV;
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test(SV(""));
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test(SV(""), A());
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test(SV("1"));
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test(SV("1") ,A());
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test(SV("1234567980"));
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test(SV("1234567980"), A());
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test(SV("123456798012345679801234567980123456798012345679801234567980"));
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test(SV("123456798012345679801234567980123456798012345679801234567980"), A());
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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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