ReactOS 0.4.15-dev-7928-g68a8619
_hash_fun.h
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1/*
2 * Copyright (c) 1996-1998
3 * Silicon Graphics Computer Systems, Inc.
4 *
5 * Permission to use, copy, modify, distribute and sell this software
6 * and its documentation for any purpose is hereby granted without fee,
7 * provided that the above copyright notice appear in all copies and
8 * that both that copyright notice and this permission notice appear
9 * in supporting documentation. Silicon Graphics makes no
10 * representations about the suitability of this software for any
11 * purpose. It is provided "as is" without express or implied warranty.
12 *
13 *
14 * Copyright (c) 1994
15 * Hewlett-Packard Company
16 *
17 * Permission to use, copy, modify, distribute and sell this software
18 * and its documentation for any purpose is hereby granted without fee,
19 * provided that the above copyright notice appear in all copies and
20 * that both that copyright notice and this permission notice appear
21 * in supporting documentation. Hewlett-Packard Company makes no
22 * representations about the suitability of this software for any
23 * purpose. It is provided "as is" without express or implied warranty.
24 *
25 */
26
27/* NOTE: This is an internal header file, included by other STL headers.
28 * You should not attempt to use it directly.
29 */
30
31#ifndef _STLP_HASH_FUN_H
32#define _STLP_HASH_FUN_H
33
34#ifndef _STLP_INTERNAL_CSTDDEF
35# include <stl/_cstddef.h>
36#endif
37
39
40template <class _Key> struct hash { };
41
43
44inline size_t __stl_hash_string(const char* __s) {
46 unsigned long __h = 0;
47 for ( ; *__s; ++__s)
48 __h = 5*__h + *__s;
49
50 return size_t(__h);
51}
52
54
56struct hash<char*> {
57 size_t operator()(const char* __s) const {
59 return _STLP_PRIV __stl_hash_string(__s);
60 }
61};
62
64struct hash<const char*> {
65 size_t operator()(const char* __s) const {
67 return _STLP_PRIV __stl_hash_string(__s);
68 }
69};
70
72 size_t operator()(char __x) const { return __x; }
73};
75 size_t operator()(unsigned char __x) const { return __x; }
76};
77#if !defined (_STLP_NO_SIGNED_BUILTINS)
79 size_t operator()(unsigned char __x) const { return __x; }
80};
81#endif
83 size_t operator()(short __x) const { return __x; }
84};
86 size_t operator()(unsigned short __x) const { return __x; }
87};
89 size_t operator()(int __x) const { return __x; }
90};
91
92#if !defined (_STLP_MSVC) || (_STLP_MSVC < 1300) || defined (_WIN64)
94 size_t operator()(unsigned int __x) const { return __x; }
95};
96#else
97/* MSVC .Net since 2002 has a 64 bits portability warning feature. typedef
98 * like size_t are tagged as potential 64 bits variables making them different from
99 * unsigned int. To avoid the warning when a hash container is instanciated with
100 * the size_t key we prefer to grant the size_t specialization rather than the
101 * unsigned int one.
102 */
104 size_t operator()(size_t __x) const { return __x; }
105};
106#endif
107
109 size_t operator()(long __x) const { return __x; }
110};
112 size_t operator()(unsigned long __x) const { return __x; }
113};
114
115#if defined (_STLP_LONG_LONG)
117 size_t operator()(_STLP_LONG_LONG x) const { return (size_t)x; }
118};
120 size_t operator()(unsigned _STLP_LONG_LONG x) const { return (size_t)x; }
121};
122#endif
123
125struct hash<void *>
126{
127 union __vp {
128 size_t s;
129 void *p;
130 };
131
132 size_t operator()(void *__x) const
133 {
134 __vp vp;
135 vp.p = __x;
136 return vp.s;
137 }
138};
139
141
142#endif /* _STLP_HASH_FUN_H */
143
144// Local Variables:
145// mode:C++
146// End:
#define _STLP_LONG_LONG
Definition: _apcc.h:12
#define _STLP_PRIV
Definition: _dm.h:70
_STLP_MOVE_TO_PRIV_NAMESPACE size_t __stl_hash_string(const char *__s)
Definition: _hash_fun.h:44
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31
unsigned char
Definition: typeof.h:29
unsigned long
Definition: typeof.h:102
unsigned short(__cdecl typeof(TIFFCurrentDirectory))(struct tiff *)
Definition: typeof.h:94
__kernel_size_t size_t
Definition: linux.h:237
#define _STLP_TEMPLATE_NULL
Definition: features.h:652
#define _STLP_MOVE_TO_STD_NAMESPACE
Definition: features.h:525
#define _STLP_FIX_LITERAL_BUG(__x)
Definition: features.h:301
#define _STLP_BEGIN_NAMESPACE
Definition: features.h:501
#define _STLP_END_NAMESPACE
Definition: features.h:503
#define _STLP_MOVE_TO_PRIV_NAMESPACE
Definition: features.h:524
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
static unsigned(__cdecl *hash_bstr)(bstr_t s)
#define signed
Definition: prototyp.h:114
size_t operator()(char __x) const
Definition: _hash_fun.h:72
size_t operator()(const char *__s) const
Definition: _hash_fun.h:57
size_t operator()(const char *__s) const
Definition: _hash_fun.h:65
size_t operator()(int __x) const
Definition: _hash_fun.h:89
size_t operator()(long __x) const
Definition: _hash_fun.h:109
size_t operator()(short __x) const
Definition: _hash_fun.h:83
size_t operator()(unsigned char __x) const
Definition: _hash_fun.h:79
size_t operator()(unsigned char __x) const
Definition: _hash_fun.h:75
size_t operator()(unsigned int __x) const
Definition: _hash_fun.h:94
size_t operator()(unsigned long __x) const
Definition: _hash_fun.h:112
size_t operator()(unsigned short __x) const
Definition: _hash_fun.h:86
size_t operator()(void *__x) const
Definition: _hash_fun.h:132
Definition: _hash_fun.h:40
#define const
Definition: zconf.h:233