InspIRCd: hashcomp.h Source File

00001 /*       +------------------------------------+
-00002  *       | Inspire Internet Relay Chat Daemon |
-00003  *       +------------------------------------+
-00004  *
-00005  *  Inspire is copyright (C) 2002-2005 ChatSpike-Dev.
-00006  *                       E-mail:
-00007  *                <brain@chatspike.net>
-00008  *                <Craig@chatspike.net>
-00009  *
-00010  * Written by Craig Edwards, Craig McLure, and others.
-00011  * This program is free but copyrighted software; see
-00012  *            the file COPYING for details.
-00013  *
-00014  * ---------------------------------------------------
-00015  */
-00016 
-00017 #ifndef _HASHCOMP_H_
-00018 #define _HASHCOMP_H_
-00019 
-00020 #include "inspircd_config.h"
-00021 
-00022 /*******************************************************
-00023  * This file contains classes and templates that deal
-00024  * with the comparison and hashing of 'irc strings'.
-00025  * An 'irc string' is a string which compares in a
-00026  * case insensitive manner, and as per RFC 1459 will
-00027  * treat [ identical to {, ] identical to }, and \
-00028  * as identical to |.
-00029  *
-00030  * Our hashing functions are designed  to accept
-00031  * std::string and compare/hash them as type irc::string
-00032  * by converting them internally. This makes them
-00033  * backwards compatible with other code which is not
-00034  * aware of irc::string.
-00035  *******************************************************/
-00036 
-00037 #ifdef GCC3
-00038 #include <ext/hash_map>
-00039 #else
-00040 #include <hash_map>
-00041 #endif
-00042 
-00043 #ifdef GCC3
-00044 #define nspace __gnu_cxx
-00045 #else
-00046 #define nspace std
-00047 #endif
-00048 
-00049 using namespace std;
-00050 
-00051 namespace nspace
-00052 {
-00053 #ifdef GCC34
-00054         template<> struct hash<in_addr>
-00055 #else
-00056         template<> struct nspace::hash<in_addr>
-00057 #endif
-00058         {
-00059                 size_t operator()(const struct in_addr &a) const;
-00060         };
-00061 #ifdef GCC34
-00062         template<> struct hash<string>
-00063 #else
-00064         template<> struct nspace::hash<string>
-00065 #endif
-00066         {
-00067                 size_t operator()(const string &s) const;
-00068         };
-00069 }
-00070 
-00073 namespace irc
-00074 {
-00075 
-00080         struct StrHashComp
-00081         {
-00084                 bool operator()(const std::string& s1, const std::string& s2) const;
-00085         };
-00086 
-00087 
-00092         struct InAddr_HashComp
-00093         {
-00096                 bool operator()(const in_addr &s1, const in_addr &s2) const;
-00097         };
-00098 
-00099 
-00104         struct irc_char_traits : std::char_traits<char> {
-00105 
-00108                 static bool eq(char c1st, char c2nd);
-00109 
-00112                 static bool ne(char c1st, char c2nd);
-00113 
-00116                 static bool lt(char c1st, char c2nd);
-00117 
-00120                 static int compare(const char* str1, const char* str2, size_t n);
-00121 
-00124                 static const char* find(const char* s1, int  n, char c);
-00125         };
-00126 
-00129         typedef basic_string<char, irc_char_traits, allocator<char> > string;
-00130 }
-00131 
-00132 #endif
-