7149bb7068
The libc++ test suite has a lot of old Lit features used to XFAIL tests and mark them as UNSUPPORTED. Many of them are to workaround problems on old compilers or old platforms. As time goes by, it is good to go and clean those up to simplify the configuration of the test suite, and also to reflect the testing reality. It's not useful to have markup that gives the impression that e.g. clang-3.3 is supported, when we don't really test on it anymore (and hence several new tests probably don't have the necessary markup on them).
58 lines
2.2 KiB
C++
58 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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// <string>
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// UNSUPPORTED: clang-4.0
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// UNSUPPORTED: apple-clang-9
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// template<class InputIterator,
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// class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
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// basic_string(InputIterator, InputIterator, Allocator = Allocator())
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// -> basic_string<typename iterator_traits<InputIterator>::value_type,
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// char_traits<typename iterator_traits<InputIterator>::value_type>,
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// Allocator>;
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//
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// The deduction guide shall not participate in overload resolution if InputIterator
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// is a type that does not qualify as an input iterator, or if Allocator is a type
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// that does not qualify as an allocator.
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#include <string>
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#include <iterator>
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#include <cassert>
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#include <cstddef>
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#include "test_macros.h"
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class NotAnItertor {};
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template <typename T>
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struct NotAnAllocator { typedef T value_type; };
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int main(int, char**)
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{
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{ // Not an iterator at all
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std::basic_string s1{NotAnItertor{}, NotAnItertor{}, std::allocator<char>{}}; // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'basic_string'}}
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}
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{ // Not an input iterator
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const char16_t* s = u"12345678901234";
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std::basic_string<char16_t> s0;
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std::basic_string s1{std::back_insert_iterator(s0), // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'basic_string'}}
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std::back_insert_iterator(s0),
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std::allocator<char16_t>{}};
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}
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{ // Not an allocator
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const wchar_t* s = L"12345678901234";
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std::basic_string s1{s, s+10, NotAnAllocator<wchar_t>{}}; // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'basic_string'}}
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}
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return 0;
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}
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