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| 5496 | leency | 1 | /* |
| 2 | * Copyright (c) 1996-1998 |
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| 3 | * Silicon Graphics Computer Systems, Inc. |
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| 4 | * |
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| 5 | * Permission to use, copy, modify, distribute and sell this software |
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| 6 | * and its documentation for any purpose is hereby granted without fee, |
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| 7 | * provided that the above copyright notice appear in all copies and |
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| 8 | * that both that copyright notice and this permission notice appear |
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| 9 | * in supporting documentation. Silicon Graphics makes no |
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| 10 | * representations about the suitability of this software for any |
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| 11 | * purpose. It is provided "as is" without express or implied warranty. |
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| 12 | * |
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| 13 | * |
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| 14 | * Copyright (c) 1994 |
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| 15 | * Hewlett-Packard Company |
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| 16 | * |
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| 17 | * Permission to use, copy, modify, distribute and sell this software |
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| 18 | * and its documentation for any purpose is hereby granted without fee, |
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| 19 | * provided that the above copyright notice appear in all copies and |
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| 20 | * that both that copyright notice and this permission notice appear |
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| 21 | * in supporting documentation. Hewlett-Packard Company makes no |
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| 22 | * representations about the suitability of this software for any |
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| 23 | * purpose. It is provided "as is" without express or implied warranty. |
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| 24 | * |
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| 25 | */ |
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| 26 | |||
| 27 | /* NOTE: This is an internal header file, included by other STL headers. |
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| 28 | * You should not attempt to use it directly. |
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| 29 | */ |
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| 30 | |||
| 31 | #ifndef _CPP_BITS_STL_HASH_FUN_H |
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| 32 | #define _CPP_BITS_STL_HASH_FUN_H 1 |
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| 33 | |||
| 34 | #include |
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| 35 | |||
| 36 | namespace std |
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| 37 | { |
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| 38 | |||
| 39 | template |
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| 40 | |||
| 41 | inline size_t __stl_hash_string(const char* __s) |
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| 42 | { |
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| 43 | unsigned long __h = 0; |
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| 44 | for ( ; *__s; ++__s) |
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| 45 | __h = 5*__h + *__s; |
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| 46 | |||
| 47 | return size_t(__h); |
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| 48 | } |
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| 49 | |||
| 50 | template<> struct hash |
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| 51 | { |
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| 52 | size_t operator()(const char* __s) const { return __stl_hash_string(__s); } |
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| 53 | }; |
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| 54 | |||
| 55 | template<> struct hash |
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| 56 | { |
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| 57 | size_t operator()(const char* __s) const { return __stl_hash_string(__s); } |
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| 58 | }; |
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| 59 | |||
| 60 | template<> struct hash |
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| 61 | size_t operator()(char __x) const { return __x; } |
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| 62 | }; |
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| 63 | template<> struct hash |
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| 64 | size_t operator()(unsigned char __x) const { return __x; } |
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| 65 | }; |
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| 66 | template<> struct hash |
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| 67 | size_t operator()(unsigned char __x) const { return __x; } |
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| 68 | }; |
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| 69 | template<> struct hash |
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| 70 | size_t operator()(short __x) const { return __x; } |
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| 71 | }; |
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| 72 | template<> struct hash |
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| 73 | size_t operator()(unsigned short __x) const { return __x; } |
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| 74 | }; |
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| 75 | template<> struct hash |
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| 76 | size_t operator()(int __x) const { return __x; } |
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| 77 | }; |
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| 78 | template<> struct hash |
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| 79 | size_t operator()(unsigned int __x) const { return __x; } |
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| 80 | }; |
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| 81 | template<> struct hash |
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| 82 | size_t operator()(long __x) const { return __x; } |
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| 83 | }; |
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| 84 | template<> struct hash |
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| 85 | size_t operator()(unsigned long __x) const { return __x; } |
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| 86 | }; |
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| 87 | |||
| 88 | } // namespace std |
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| 89 | |||
| 90 | #endif /* _CPP_BITS_STL_HASH_FUN_H */ |
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| 91 | |||
| 92 | // Local Variables: |
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| 93 | // mode:C++ |
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| 94 | // End: |