85ec4feb11
From-SVN: r256169
197 lines
5.0 KiB
C++
197 lines
5.0 KiB
C++
// -*- C++ -*-
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// Exception testing utils for the C++ library testsuite.
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//
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// Copyright (C) 2007-2018 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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//
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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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//
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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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//
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#include <exception>
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#include <testsuite_hooks.h>
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#ifndef _TESTSUITE_API
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#define _TESTSUITE_API 1
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namespace __gnu_test
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{
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// Checks for virtual public derivation in exception classes.
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// See:
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// http://www.boost.org/more/error_handling.html
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struct bad_non_virtual : virtual public std::exception { };
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template<typename Exception, bool DefaultCons>
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struct diamond_derivation_base;
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template<typename Exception>
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struct diamond_derivation_base<Exception, true>
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{
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struct diamond_derivation_error
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: bad_non_virtual, Exception
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{
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diamond_derivation_error()
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: bad_non_virtual(), Exception() { }
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};
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};
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template<typename Exception>
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struct diamond_derivation_base<Exception, false>
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{
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struct diamond_derivation_error
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: bad_non_virtual, Exception
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{
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diamond_derivation_error()
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: bad_non_virtual(), Exception("construct diamond") { }
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};
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};
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template<typename Exception, bool DefaultCons>
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struct diamond_derivation
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: diamond_derivation_base<Exception, DefaultCons>
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{
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typedef diamond_derivation_base<Exception, DefaultCons> base_type;
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typedef typename base_type::diamond_derivation_error error_type;
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// NB: In the libstdc++-v3 testsuite, all the standard exception
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// classes (+ a couple of extensions) are checked: since they
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// all derive *non* virtually from std::exception, the expected
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// behavior is ambiguity.
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static void test()
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{
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try
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{ throw error_type(); }
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catch (std::exception const&)
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{ VERIFY( false ); }
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catch (...)
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{ VERIFY( true ); }
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}
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};
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// Testing type requirements for template arguments.
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struct NonDefaultConstructible
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{
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NonDefaultConstructible(int) { }
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NonDefaultConstructible(const NonDefaultConstructible&) { }
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#if __cplusplus >= 201103L
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// For std::iota.
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NonDefaultConstructible&
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operator++()
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{ return *this; }
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#endif
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};
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// See: 20.1.1 Template argument requirements.
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inline bool
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operator==(const NonDefaultConstructible&, const NonDefaultConstructible&)
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{ return false; }
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inline bool
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operator<(const NonDefaultConstructible&, const NonDefaultConstructible&)
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{ return false; }
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// For 23 unordered_* requirements.
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struct NonDefaultConstructible_hash
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{
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std::size_t
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operator()(NonDefaultConstructible) const
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{ return 1; }
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};
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// For 26 numeric algorithms requirements, need addable,
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// subtractable, multiplicable.
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inline NonDefaultConstructible
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operator+(const NonDefaultConstructible& lhs,
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const NonDefaultConstructible& rhs)
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{ return NonDefaultConstructible(1); }
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inline NonDefaultConstructible
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operator-(const NonDefaultConstructible& lhs,
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const NonDefaultConstructible& rhs)
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{ return NonDefaultConstructible(1); }
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inline NonDefaultConstructible
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operator*(const NonDefaultConstructible& lhs,
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const NonDefaultConstructible& rhs)
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{ return NonDefaultConstructible(1); }
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// Like unary_function, but takes no argument. (ie, void).
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// Used for generator template parameter.
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template<typename _Result>
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struct void_function
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{
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typedef _Result result_type;
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result_type
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operator()() const
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{ return result_type(); }
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};
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template<>
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struct void_function<NonDefaultConstructible>
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{
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typedef NonDefaultConstructible result_type;
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result_type
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operator()() const
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{ return result_type(2); }
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};
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// For std::addressof, etc.
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struct OverloadedAddressAux { };
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struct OverloadedAddress
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{
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OverloadedAddressAux
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operator&() const { return OverloadedAddressAux(); }
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};
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inline bool
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operator<(const OverloadedAddress&, const OverloadedAddress&)
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{ return false; }
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inline bool
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operator==(const OverloadedAddress&, const OverloadedAddress&)
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{ return false; }
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struct OverloadedAddress_hash
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{
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std::size_t
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operator()(const OverloadedAddress&) const
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{ return 1; }
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};
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#if __cplusplus >= 201103L
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struct NonCopyConstructible
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{
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NonCopyConstructible() : num(-1) { }
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NonCopyConstructible(NonCopyConstructible&& other)
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: num(other.num)
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{ other.num = 0; }
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NonCopyConstructible(const NonCopyConstructible&) = delete;
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operator int() { return num; }
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private:
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int num;
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};
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#endif
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}
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#endif
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