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55 lines
1.7 KiB
C++
55 lines
1.7 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_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 "../basic.string/test_traits.h"
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struct NotTrivial {
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NotTrivial() : 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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{
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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_assert 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 trivial
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static_assert(!std::is_trivial<NotTrivial>::value, "");
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std::basic_string_view<NotTrivial, test_traits<NotTrivial> > sv;
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// expected-error-re@string_view:* {{static_assert failed{{.*}} "Character type of basic_string_view must be trivial"}}
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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_assert 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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