1 /*!**************************************************************************** 2 3 @file PVRTStringHash.h 4 @copyright Copyright (c) Imagination Technologies Limited. 5 @brief Inherits from PVRTString to include PVRTHash functionality for 6 quick string compares. 7 8 ******************************************************************************/ 9 #ifndef PVRTSTRINGHASH_H 10 #define PVRTSTRINGHASH_H 11 12 #include "PVRTString.h" 13 #include "PVRTHash.h" 14 15 /*!*********************************************************************** 16 @class CPVRTStringHash 17 @brief Inherits from PVRTString to include PVRTHash functionality for 18 quick string compares. 19 *************************************************************************/ 20 class CPVRTStringHash 21 { 22 public: 23 /*!*********************************************************************** 24 @brief Constructor 25 @param[in] _Ptr A string 26 @param[in] _Count Length of _Ptr 27 ************************************************************************/ 28 explicit CPVRTStringHash(const char* _Ptr, size_t _Count = CPVRTString::npos); 29 30 /*!*********************************************************************** 31 @brief Constructor 32 @param[in] _Right A string 33 ************************************************************************/ 34 explicit CPVRTStringHash(const CPVRTString& _Right); 35 36 /*!*********************************************************************** 37 @brief Constructor 38 ************************************************************************/ 39 CPVRTStringHash(); 40 41 /*!*********************************************************************** 42 @brief Appends a string 43 @param[in] _Ptr A string 44 @return Updated string 45 *************************************************************************/ 46 CPVRTStringHash& append(const char* _Ptr); 47 48 /*!*********************************************************************** 49 @brief Appends a string 50 @param[in] _Str A string 51 @return Updated string 52 *************************************************************************/ 53 CPVRTStringHash& append(const CPVRTString& _Str); 54 55 /*!*********************************************************************** 56 @brief Assigns the string to the string _Ptr 57 @param[in] _Ptr A string 58 @return Updated string 59 *************************************************************************/ 60 CPVRTStringHash& assign(const char* _Ptr); 61 62 /*!*********************************************************************** 63 @brief Assigns the string to the string _Str 64 @param[in] _Str A string 65 @return Updated string 66 *************************************************************************/ 67 CPVRTStringHash& assign(const CPVRTString& _Str); 68 69 /*!*********************************************************************** 70 @brief == Operator. This function compares the hash values of 71 the string. 72 @param[in] _Str A hashed string to compare with 73 @return True if they match 74 *************************************************************************/ 75 bool operator==(const CPVRTStringHash& _Str) const; 76 77 /*!*********************************************************************** 78 @brief == Operator. This function performs a strcmp() 79 as it's more efficient to strcmp than to hash the string 80 for every comparison. 81 @param[in] _Str A string to compare with 82 @return True if they match 83 *************************************************************************/ 84 bool operator==(const char* _Str) const; 85 86 /*!*********************************************************************** 87 @brief == Operator. This function performs a strcmp() 88 as it's more efficient to strcmp than to hash the string 89 for every comparison. 90 @param[in] _Str A string to compare with 91 @return True if they match 92 *************************************************************************/ 93 bool operator==(const CPVRTString& _Str) const; 94 95 /*!*********************************************************************** 96 @brief == Operator. This function compares the hash values of 97 the string. 98 @param[in] Hash A Hash to compare with 99 @return True if they match 100 *************************************************************************/ 101 bool operator==(const CPVRTHash& Hash) const; 102 103 /*!*********************************************************************** 104 @brief != Operator 105 @param[in] _Str A string to compare with 106 @return True if they don't match 107 *************************************************************************/ 108 bool operator!=(const CPVRTStringHash& _Str) const; 109 110 /*!*********************************************************************** 111 @brief != Operator. This function compares the hash values of 112 the string. 113 @param[in] Hash A Hash to compare with 114 @return True if they match 115 *************************************************************************/ 116 bool operator!=(const CPVRTHash& Hash) const; 117 118 /*!*********************************************************************** 119 @fn String 120 @return The original string 121 @brief Returns the original, base string. 122 *************************************************************************/ 123 const CPVRTString& String() const; 124 125 /*!*********************************************************************** 126 @brief Returns the hash of the base string 127 @fn Hash 128 @return The hash 129 *************************************************************************/ 130 const CPVRTHash& Hash() const; 131 132 /*!*************************************************************************** 133 @fn c_str 134 @return The original string. 135 @brief Returns the base string as a const char*. 136 *****************************************************************************/ 137 const char* c_str() const; 138 139 private: 140 CPVRTString m_String; 141 CPVRTHash m_Hash; 142 }; 143 144 #endif 145 146
