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84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
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// Copyright (C) 2016-2017 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-O0" }
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// { dg-do run { target c++11 } }
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#include <string>
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#include <testsuite_hooks.h>
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struct TestBaseObjCtor : std::string
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{
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template<typename... Args>
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TestBaseObjCtor(Args&&... args)
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: std::string(std::forward<Args>(args)...)
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{ }
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};
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template<typename... Args>
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std::size_t
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construct(Args&&... args)
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{
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// Use static_cast<Args> to produce either an lvalue or prvalue,
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// so args... not left in moved-from state and can be reused below:
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TestBaseObjCtor as_base_obj( static_cast<Args>(args)... );
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std::string as_complete_obj( std::forward<Args>(args)... );
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return as_complete_obj.length();
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}
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void
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test01()
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{
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using string = std::string;
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using list = std::initializer_list<string::value_type>;
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const std::string lvalue = "lvalue";
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std::allocator<char> alloc;
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// test all valid combinations of arguments:
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VERIFY( construct( ) == 0 );
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VERIFY( construct( alloc ) == 0 );
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VERIFY( construct( lvalue ) == 6 );
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VERIFY( construct( string{"rvalue"} ) == 6 );
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VERIFY( construct( lvalue, 2 ) == 4 );
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VERIFY( construct( lvalue, 2, alloc ) == 4 );
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VERIFY( construct( lvalue, 2, 3 ) == 3 );
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VERIFY( construct( lvalue, 2, 3, alloc ) == 3 );
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VERIFY( construct( "C string", 4 ) == 4 );
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VERIFY( construct( "C string", 4, alloc ) == 4 );
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VERIFY( construct( "C string" ) == 8 );
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VERIFY( construct( "C string and alloc", alloc ) == 18 );
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VERIFY( construct( 5, ' ' ) == 5 );
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VERIFY( construct( 5, ' ', alloc ) == 5 );
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VERIFY( construct( lvalue.begin(), lvalue.end() ) == 6 );
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VERIFY( construct( lvalue.begin(), lvalue.end(), alloc ) == 6 );
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VERIFY( construct( list{ 'l' , 'i' , 's', 't' } ) == 4 );
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VERIFY( construct( list{ 'l', 'i', 's', 't' }, alloc ) == 4 );
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#if _GLIBCXX_USE_CXX11_ABI
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VERIFY( construct( lvalue, alloc ) == 6 );
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VERIFY( construct( string{"rvalue"}, alloc ) == 6 );
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#endif
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}
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int
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main()
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{
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test01();
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}
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