ab95005a05
Requirements on character-like types are updated unconditionally, because `basic_string` does requires the default-constructibility. It might be possible to make `basic_string_view` support classes with non-public trivial default constructor, but this doesn't seem sensible. libcxxabi's `ItaniumDemangle.h` is also updated to avoid deprecated features.
75 lines
2.5 KiB
C++
75 lines
2.5 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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// UNSUPPORTED: !stdlib=libc++ && (c++03 || c++11 || c++14)
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// XFAIL: FROZEN-CXX03-HEADERS-FIXME
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// <string_view>
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// ... manipulating sequences of any non-array trivial standard-layout types.
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#include <string>
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#include <type_traits>
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#include "../basic.string/test_traits.h"
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struct NotTriviallyCopyable {
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int value;
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NotTriviallyCopyable& operator=(const NotTriviallyCopyable& other) {
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value = other.value;
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return *this;
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}
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};
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struct NotTriviallyDefaultConstructible {
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NotTriviallyDefaultConstructible() : value(3) {}
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int value;
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};
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struct NotStandardLayout {
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public:
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NotStandardLayout() : one(1), two(2) {}
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int sum() const { return one + two; } // silences "unused field 'two' warning"
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int one;
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private:
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int two;
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};
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int main(int, char**) {
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{
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// array
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typedef char C[3];
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static_assert(std::is_array<C>::value, "");
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std::basic_string_view<C, test_traits<C> > sv;
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// expected-error-re@string_view:* {{static assertion failed{{.*}}Character type of basic_string_view must not be an array}}
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}
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{
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// not trivially copyable
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static_assert(!std::is_trivially_copyable<NotTriviallyCopyable>::value, "");
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std::basic_string_view<NotTriviallyCopyable, test_traits<NotTriviallyCopyable> > s;
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// expected-error-re@*:* {{static assertion failed{{.*}}Character type of basic_string_view must be trivially copyable}}
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}
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{
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// not trivially default constructible
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static_assert(!std::is_trivially_default_constructible<NotTriviallyDefaultConstructible>::value, "");
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std::basic_string_view<NotTriviallyDefaultConstructible, test_traits<NotTriviallyDefaultConstructible> > sv;
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// expected-error-re@string_view:* {{static assertion failed{{.*}}Character type of basic_string_view must be trivially default constructible}}
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}
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{
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// not standard layout
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static_assert(!std::is_standard_layout<NotStandardLayout>::value, "");
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std::basic_string_view<NotStandardLayout, test_traits<NotStandardLayout> > sv;
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// expected-error-re@string_view:* {{static assertion failed{{.*}}Character type of basic_string_view must be standard-layout}}
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}
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return 0;
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}
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