gcc/libstdc++-v3/testsuite/util/testsuite_tr1.h

// -*- C++ -*-
// Testing utilities for the tr1 testsuite.
//
// Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
//
// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

#ifndef _GLIBCXX_TESTSUITE_TR1_H
#define _GLIBCXX_TESTSUITE_TR1_H

#include <ext/type_traits.h>

namespace __gnu_test
{
  // For tr1/type_traits.
  template<template<typename> class Category, typename Type>
    bool
    test_category(bool value)
    {
      bool ret = true;
      ret &= Category<Type>::value == value;
      ret &= Category<const Type>::value == value;
      ret &= Category<volatile Type>::value == value;
      ret &= Category<const volatile Type>::value == value;
      ret &= Category<Type>::type::value == value;
      ret &= Category<const Type>::type::value == value;
      ret &= Category<volatile Type>::type::value == value;
      ret &= Category<const volatile Type>::type::value == value;
      return ret;
    }

  template<template<typename> class Property, typename Type>
    bool
    test_property(typename Property<Type>::value_type value)
    {
      bool ret = true;
      ret &= Property<Type>::value == value;
      ret &= Property<Type>::type::value == value;
      return ret;
    }

  // For testing tr1/type_traits/extent, which has a second template
  // parameter.
  template<template<typename, unsigned> class Property,
           typename Type,
	   unsigned Uint>
    bool
    test_property(typename Property<Type, Uint>::value_type value)
    {
      bool ret = true;
      ret &= Property<Type, Uint>::value == value;
      ret &= Property<Type, Uint>::type::value == value;
      return ret;
    }

  template<template<typename, typename> class Relationship,
           typename Type1, typename Type2>
    bool
    test_relationship(bool value)
    {
      bool ret = true;
      ret &= Relationship<Type1, Type2>::value == value;
      ret &= Relationship<Type1, Type2>::type::value == value;
      return ret;
    }

  // Test types.
  class ClassType { };
  typedef const ClassType           cClassType;
  typedef volatile ClassType        vClassType;
  typedef const volatile ClassType  cvClassType;

  class DerivedType : public ClassType { };

  enum EnumType { };

  struct ConvType
  { operator int() const; };

  class AbstractClass
  {
    virtual void rotate(int) = 0;
    virtual ~AbstractClass();
  };

  class PolymorphicClass
  {
    virtual void rotate(int);
    virtual ~PolymorphicClass();
  };

  class DerivedPolymorphic : public PolymorphicClass { };

  union UnionType { };

  class IncompleteClass;

  int truncate_float(float x) { return (int)x; }
  long truncate_double(double x) { return (long)x; }

  struct do_truncate_float_t
  {
    do_truncate_float_t()
    {
      ++live_objects;
    }

    do_truncate_float_t(const do_truncate_float_t&)
    {
      ++live_objects;
    }

    ~do_truncate_float_t()
    {
      --live_objects;
    }

    int operator()(float x) { return (int)x; }

    static int live_objects;
  };

  int do_truncate_float_t::live_objects = 0;

  struct do_truncate_double_t
  {
    do_truncate_double_t()
    {
     ++live_objects;
    }

    do_truncate_double_t(const do_truncate_double_t&)
    {
      ++live_objects;
    }

    ~do_truncate_double_t()
    {
      --live_objects;
    }

    long operator()(double x) { return (long)x; }

    static int live_objects;
  };

  int do_truncate_double_t::live_objects = 0;

  struct X
  {
    int bar;

    int foo()                   { return 1; }
    int foo_c() const           { return 2; }
    int foo_v()  volatile       { return 3; }
    int foo_cv() const volatile { return 4; }
  };

  // For use in 8_c_compatibility.
  template<typename R, typename T>
    typename __gnu_cxx::__enable_if<std::tr1::is_same<R, T>::value, 
				    bool>::__type
    check_ret_type(T)
    { return true; }

} // namespace __gnu_test

#endif // _GLIBCXX_TESTSUITE_TR1_H