SM0 She11

Path: / / usr / include / c++ / 4.8.2 / bits

Full Path (server): /usr/include/c++/4.8.2/bits

📄 algorithmfwd.h [E] [D]
📄 alloc_traits.h [E] [D]
📄 allocator.h [E] [D]
📄 atomic_base.h [E] [D]
📄 atomic_lockfree_defines.h [E] [D]
📄 basic_ios.h [E] [D]
📄 basic_ios.tcc [E] [D]
📄 basic_string.h [E] [D]
📄 basic_string.tcc [E] [D]
📄 boost_concept_check.h [E] [D]
📄 c++0x_warning.h [E] [D]
📄 char_traits.h [E] [D]
📄 codecvt.h [E] [D]
📄 concept_check.h [E] [D]
📄 cpp_type_traits.h [E] [D]
📄 cxxabi_forced.h [E] [D]
📄 deque.tcc [E] [D]
📄 exception_defines.h [E] [D]
📄 exception_ptr.h [E] [D]
📄 forward_list.h [E] [D]
📄 forward_list.tcc [E] [D]
📄 fstream.tcc [E] [D]
📄 functexcept.h [E] [D]
📄 functional_hash.h [E] [D]
📄 gslice.h [E] [D]
📄 gslice_array.h [E] [D]
📄 hash_bytes.h [E] [D]
📄 hashtable.h [E] [D]
📄 hashtable_policy.h [E] [D]
📄 indirect_array.h [E] [D]
📄 ios_base.h [E] [D]
📄 istream.tcc [E] [D]
📄 list.tcc [E] [D]
📄 locale_classes.h [E] [D]
📄 locale_classes.tcc [E] [D]
📄 locale_facets.h [E] [D]
📄 locale_facets.tcc [E] [D]
📄 locale_facets_nonio.h [E] [D]
📄 locale_facets_nonio.tcc [E] [D]
📄 localefwd.h [E] [D]
📄 mask_array.h [E] [D]
📄 memoryfwd.h [E] [D]
📄 move.h [E] [D]
📄 nested_exception.h [E] [D]
📄 ostream.tcc [E] [D]
📄 ostream_insert.h [E] [D]
📄 postypes.h [E] [D]
📄 ptr_traits.h [E] [D]
📄 random.h [E] [D]
📄 random.tcc [E] [D]
📄 range_access.h [E] [D]
📄 regex.h [E] [D]
📄 regex_compiler.h [E] [D]
📄 regex_constants.h [E] [D]
📄 regex_cursor.h [E] [D]
📄 regex_error.h [E] [D]
📄 regex_grep_matcher.h [E] [D]
📄 regex_grep_matcher.tcc [E] [D]
📄 regex_nfa.h [E] [D]
📄 regex_nfa.tcc [E] [D]
📄 shared_ptr.h [E] [D]
📄 shared_ptr_base.h [E] [D]
📄 slice_array.h [E] [D]
📄 sstream.tcc [E] [D]
📄 stl_algo.h [E] [D]
📄 stl_algobase.h [E] [D]
📄 stl_bvector.h [E] [D]
📄 stl_construct.h [E] [D]
📄 stl_deque.h [E] [D]
📄 stl_function.h [E] [D]
📄 stl_heap.h [E] [D]
📄 stl_iterator.h [E] [D]
📄 stl_iterator_base_funcs.h [E] [D]
📄 stl_iterator_base_types.h [E] [D]
📄 stl_list.h [E] [D]
📄 stl_map.h [E] [D]
📄 stl_multimap.h [E] [D]
📄 stl_multiset.h [E] [D]
📄 stl_numeric.h [E] [D]
📄 stl_pair.h [E] [D]
📄 stl_queue.h [E] [D]
📄 stl_raw_storage_iter.h [E] [D]
📄 stl_relops.h [E] [D]
📄 stl_set.h [E] [D]
📄 stl_stack.h [E] [D]
📄 stl_tempbuf.h [E] [D]
📄 stl_tree.h [E] [D]
📄 stl_uninitialized.h [E] [D]
📄 stl_vector.h [E] [D]
📄 stream_iterator.h [E] [D]
📄 streambuf.tcc [E] [D]
📄 streambuf_iterator.h [E] [D]
📄 stringfwd.h [E] [D]
📄 unique_ptr.h [E] [D]
📄 unordered_map.h [E] [D]
📄 unordered_set.h [E] [D]
📄 uses_allocator.h [E] [D]
📄 valarray_after.h [E] [D]
📄 valarray_array.h [E] [D]
📄 valarray_array.tcc [E] [D]
📄 valarray_before.h [E] [D]
📄 vector.tcc [E] [D]

Editing: functional_hash.h

// functional_hash.h header -*- C++ -*-

// Copyright (C) 2007-2013 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file bits/functional_hash.h
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{functional}
 */

#ifndef _FUNCTIONAL_HASH_H
#define _FUNCTIONAL_HASH_H 1

#pragma GCC system_header

#include <bits/hash_bytes.h>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

/** @defgroup hashes Hashes
   *  @ingroup functors
   *
   *   Hashing functors taking a variable type and returning a @c std::size_t.
   *
   *  @{
   */

template<typename _Result, typename _Arg>
    struct __hash_base
    {
      typedef _Result     result_type;
      typedef _Arg      argument_type;
    };

/// Primary class template hash.
  template<typename _Tp>
    struct hash;

/// Partial specializations for pointer types.
  template<typename _Tp>
    struct hash<_Tp*> : public __hash_base<size_t, _Tp*>
    {
      size_t
      operator()(_Tp* __p) const noexcept
      { return reinterpret_cast<size_t>(__p); }
    };

// Explicit specializations for integer types.
#define _Cxx_hashtable_define_trivial_hash(_Tp) 	\
  template<>						\
    struct hash<_Tp> : public __hash_base<size_t, _Tp>  \
    {                                                   \
      size_t                                            \
      operator()(_Tp __val) const noexcept              \
      { return static_cast<size_t>(__val); }            \
    };

/// Explicit specialization for bool.
  _Cxx_hashtable_define_trivial_hash(bool)

/// Explicit specialization for char.
  _Cxx_hashtable_define_trivial_hash(char)

/// Explicit specialization for signed char.
  _Cxx_hashtable_define_trivial_hash(signed char)

/// Explicit specialization for unsigned char.
  _Cxx_hashtable_define_trivial_hash(unsigned char)

/// Explicit specialization for wchar_t.
  _Cxx_hashtable_define_trivial_hash(wchar_t)

/// Explicit specialization for char16_t.
  _Cxx_hashtable_define_trivial_hash(char16_t)

/// Explicit specialization for char32_t.
  _Cxx_hashtable_define_trivial_hash(char32_t)

/// Explicit specialization for short.
  _Cxx_hashtable_define_trivial_hash(short)

/// Explicit specialization for int.
  _Cxx_hashtable_define_trivial_hash(int)

/// Explicit specialization for long.
  _Cxx_hashtable_define_trivial_hash(long)

/// Explicit specialization for long long.
  _Cxx_hashtable_define_trivial_hash(long long)

/// Explicit specialization for unsigned short.
  _Cxx_hashtable_define_trivial_hash(unsigned short)

/// Explicit specialization for unsigned int.
  _Cxx_hashtable_define_trivial_hash(unsigned int)

/// Explicit specialization for unsigned long.
  _Cxx_hashtable_define_trivial_hash(unsigned long)

/// Explicit specialization for unsigned long long.
  _Cxx_hashtable_define_trivial_hash(unsigned long long)

#undef _Cxx_hashtable_define_trivial_hash

struct _Hash_impl
  {
    static size_t
    hash(const void* __ptr, size_t __clength,
	 size_t __seed = static_cast<size_t>(0xc70f6907UL))
    { return _Hash_bytes(__ptr, __clength, __seed); }

template<typename _Tp>
      static size_t
      hash(const _Tp& __val)
      { return hash(&__val, sizeof(__val)); }

template<typename _Tp>
      static size_t
      __hash_combine(const _Tp& __val, size_t __hash)
      { return hash(&__val, sizeof(__val), __hash); }
  };

struct _Fnv_hash_impl
  {
    static size_t
    hash(const void* __ptr, size_t __clength,
	 size_t __seed = static_cast<size_t>(2166136261UL))
    { return _Fnv_hash_bytes(__ptr, __clength, __seed); }

template<typename _Tp>
      static size_t
      hash(const _Tp& __val)
      { return hash(&__val, sizeof(__val)); }

template<typename _Tp>
      static size_t
      __hash_combine(const _Tp& __val, size_t __hash)
      { return hash(&__val, sizeof(__val), __hash); }
  };

/// Specialization for float.
  template<>
    struct hash<float> : public __hash_base<size_t, float>
    {
      size_t
      operator()(float __val) const noexcept
      {
	// 0 and -0 both hash to zero.
	return __val != 0.0f ? std::_Hash_impl::hash(__val) : 0;
      }
    };

/// Specialization for double.
  template<>
    struct hash<double> : public __hash_base<size_t, double>
    {
      size_t
      operator()(double __val) const noexcept
      {
	// 0 and -0 both hash to zero.
	return __val != 0.0 ? std::_Hash_impl::hash(__val) : 0;
      }
    };

/// Specialization for long double.
  template<>
    struct hash<long double>
    : public __hash_base<size_t, long double>
    {
      _GLIBCXX_PURE size_t
      operator()(long double __val) const noexcept;
    };

// @} group hashes

// Hint about performance of hash functor. If not fast the hash based
  // containers will cache the hash code.
  // Default behavior is to consider that hasher are fast unless specified
  // otherwise.
  template<typename _Hash>
    struct __is_fast_hash : public std::true_type
    { };

template<>
    struct __is_fast_hash<hash<long double>> : public std::false_type
    { };

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif // _FUNCTIONAL_HASH_H