diff options
Diffstat (limited to 'Source/kwsys/hash_fun.hxx.in')
-rw-r--r-- | Source/kwsys/hash_fun.hxx.in | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/Source/kwsys/hash_fun.hxx.in b/Source/kwsys/hash_fun.hxx.in new file mode 100644 index 0000000..8626c2a --- /dev/null +++ b/Source/kwsys/hash_fun.hxx.in @@ -0,0 +1,166 @@ +/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying + file Copyright.txt or https://cmake.org/licensing#kwsys for details. */ +/* + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ +#ifndef @KWSYS_NAMESPACE@_hash_fun_hxx +#define @KWSYS_NAMESPACE@_hash_fun_hxx + +#include <@KWSYS_NAMESPACE@/Configure.hxx> + +#include <stddef.h> // size_t +#include <string> + +namespace @KWSYS_NAMESPACE@ { + +template <class _Key> +struct hash +{ +}; + +inline size_t _stl_hash_string(const char* __s) +{ + unsigned long __h = 0; + for (; *__s; ++__s) + __h = 5 * __h + *__s; + + return size_t(__h); +} + +template <> +struct hash<char*> +{ + size_t operator()(const char* __s) const { return _stl_hash_string(__s); } +}; + +template <> +struct hash<const char*> +{ + size_t operator()(const char* __s) const { return _stl_hash_string(__s); } +}; + +template <> +struct hash<std::string> +{ + size_t operator()(const std::string& __s) const + { + return _stl_hash_string(__s.c_str()); + } +}; + +#if !defined(__BORLANDC__) +template <> +struct hash<const std::string> +{ + size_t operator()(const std::string& __s) const + { + return _stl_hash_string(__s.c_str()); + } +}; +#endif + +template <> +struct hash<char> +{ + size_t operator()(char __x) const { return __x; } +}; + +template <> +struct hash<unsigned char> +{ + size_t operator()(unsigned char __x) const { return __x; } +}; + +template <> +struct hash<signed char> +{ + size_t operator()(unsigned char __x) const { return __x; } +}; + +template <> +struct hash<short> +{ + size_t operator()(short __x) const { return __x; } +}; + +template <> +struct hash<unsigned short> +{ + size_t operator()(unsigned short __x) const { return __x; } +}; + +template <> +struct hash<int> +{ + size_t operator()(int __x) const { return __x; } +}; + +template <> +struct hash<unsigned int> +{ + size_t operator()(unsigned int __x) const { return __x; } +}; + +template <> +struct hash<long> +{ + size_t operator()(long __x) const { return __x; } +}; + +template <> +struct hash<unsigned long> +{ + size_t operator()(unsigned long __x) const { return __x; } +}; + +// use long long or __int64 +#if @KWSYS_USE_LONG_LONG@ +template <> +struct hash<long long> +{ + size_t operator()(long long __x) const { return __x; } +}; + +template <> +struct hash<unsigned long long> +{ + size_t operator()(unsigned long long __x) const { return __x; } +}; +#elif @KWSYS_USE___INT64@ +template <> +struct hash<__int64> +{ + size_t operator()(__int64 __x) const { return __x; } +}; +template <> +struct hash<unsigned __int64> +{ + size_t operator()(unsigned __int64 __x) const { return __x; } +}; +#endif // use long long or __int64 + +} // namespace @KWSYS_NAMESPACE@ + +#endif |