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Commit ff89096a by Paolo Carlini Committed by Paolo Carlini
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cpp_type_traits.h: Move the additions to namespace __gnu_internal outside of namespace std... 

2004-06-28  Paolo Carlini  <pcarlini@suse.de>

	* include/bits/cpp_type_traits.h: Move the additions to
	namespace __gnu_internal outside of namespace std; trivial
	formatting fixes.

From-SVN: r83806
parent 4723805a
Showing with 132 additions and 128 deletions
libstdc++-v3/ChangeLog
2004-06-28 Paolo Carlini <pcarlini@suse.de>
* include/bits/cpp_type_traits.h: Move the additions to
namespace __gnu_internal outside of namespace std; trivial
formatting fixes.
2004-06-28 Benjamin Kosnik <bkoz@redhat.com>
* include/debug/safe_base.h (__gnu_debug::_Safe_sequence_base):
......
libstdc++-v3/include/bits/cpp_type_traits.h
// The -*- C++ -*- type traits classes for internal use in libstdc++
// Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
// Copyright (C) 2000, 2001, 2002, 2003, 2004 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
......@@ -64,6 +64,19 @@
// -- Gaby (dosreis@cmla.ens-cachan.fr) 2000-03-06.
//
// NB: g++ can not compile these if declared within the class
// __is_pod itself.
namespace __gnu_internal
{
typedef char __one;
typedef char __two[2];
template <typename _Tp>
__one __test_type (int _Tp::*);
template <typename _Tp>
__two& __test_type (...);
} // namespace __gnu_internal
namespace std
{
// Compare for equality of types.
......@@ -71,18 +84,18 @@ namespace std
struct __are_same
{
enum
{
_M_type = 0
};
{
_M_type = 0
};
};
template<typename _Tp>
struct __are_same<_Tp, _Tp>
{
enum
{
_M_type = 1
};
{
_M_type = 1
};
};
// Define a nested type if some predicate holds.
......@@ -92,7 +105,7 @@ namespace std
};
template<typename _Tp>
struct __enable_if<_Tp, true>
struct __enable_if<_Tp, true>
{
typedef _Tp _M_type;
};
......@@ -102,18 +115,18 @@ namespace std
struct __is_void
{
enum
{
_M_type = 0
};
{
_M_type = 0
};
};
template<>
struct __is_void<void>
{
enum
{
_M_type = 1
};
{
_M_type = 1
};
};
//
......@@ -123,9 +136,9 @@ namespace std
struct __is_integer
{
enum
{
_M_type = 0
};
{
_M_type = 0
};
};
// Thirteen specializations (yes there are eleven standard integer
......@@ -135,213 +148,198 @@ namespace std
struct __is_integer<bool>
{
enum
{
_M_type = 1
};
{
_M_type = 1
};
};
template<>
struct __is_integer<char>
{
enum
{
_M_type = 1
};
{
_M_type = 1
};
};
template<>
struct __is_integer<signed char>
{
enum
{
_M_type = 1
};
{
_M_type = 1
};
};
template<>
struct __is_integer<unsigned char>
{
enum
struct __is_integer<unsigned char>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
# ifdef _GLIBCXX_USE_WCHAR_T
template<>
struct __is_integer<wchar_t>
{
enum
struct __is_integer<wchar_t>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
# endif
template<>
struct __is_integer<short>
{
enum
struct __is_integer<short>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_integer<unsigned short>
{
enum
struct __is_integer<unsigned short>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_integer<int>
{
enum
struct __is_integer<int>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_integer<unsigned int>
{
enum
struct __is_integer<unsigned int>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_integer<long>
{
enum
struct __is_integer<long>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_integer<unsigned long>
{
enum
struct __is_integer<unsigned long>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_integer<long long>
{
enum
struct __is_integer<long long>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_integer<unsigned long long>
{
enum
struct __is_integer<unsigned long long>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
//
// Floating point types
//
template<typename _Tp>
struct __is_floating
{
enum
struct __is_floating
{
_M_type = 0
enum
{
_M_type = 0
};
};
};
// three specializations (float, double and 'long double')
template<>
struct __is_floating<float>
{
enum
struct __is_floating<float>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_floating<double>
{
enum
struct __is_floating<double>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
template<>
struct __is_floating<long double>
{
enum
struct __is_floating<long double>
{
_M_type = 1
enum
{
_M_type = 1
};
};
};
//
// An arithmetic type is an integer type or a floating point type
//
template<typename _Tp>
struct __is_arithmetic
{
enum
struct __is_arithmetic
{
_M_type = __is_integer<_Tp>::_M_type || __is_floating<_Tp>::_M_type
enum
{
_M_type = __is_integer<_Tp>::_M_type || __is_floating<_Tp>::_M_type
};
};
};
//
// A fundamental type is `void' or and arithmetic type
//
template<typename _Tp>
struct __is_fundamental
{
enum
struct __is_fundamental
{
_M_type = __is_void<_Tp>::_M_type || __is_arithmetic<_Tp>::_M_type
enum
{
_M_type = __is_void<_Tp>::_M_type || __is_arithmetic<_Tp>::_M_type
};
};
};
//
// For the immediate use, the following is a good approximation
//
// NB: g++ can not compile these if declared within the class
// __is_pod itself.
namespace __gnu_internal
{
typedef char __one;
typedef char __two[2];
template <typename _Tp>
__one __test_type (int _Tp::*);
template <typename _Tp>
__two& __test_type (...);
}
template<typename _Tp>
struct __is_pod
{
enum
struct __is_pod
{
_M_type = (sizeof(__gnu_internal::__test_type<_Tp>(0)) != sizeof(__gnu_internal::__one))
enum
{
_M_type = (sizeof(__gnu_internal::__test_type<_Tp>(0))
!= sizeof(__gnu_internal::__one))
};
};
};
} // namespace std
#endif //_CPP_TYPE_TRAITS_H
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