charstrmap.h (1564B)
1 // © 2020 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 4 // charstrmap.h 5 // created: 2020sep01 Frank Yung-Fong Tang 6 7 #ifndef __CHARSTRMAP_H__ 8 #define __CHARSTRMAP_H__ 9 10 #include <utility> 11 #include "unicode/utypes.h" 12 #include "unicode/uobject.h" 13 #include "uhash.h" 14 15 U_NAMESPACE_BEGIN 16 17 /** 18 * Map of const char * keys & values. 19 * Stores pointers as is: Does not own/copy/adopt/release strings. 20 */ 21 class CharStringMap final : public UMemory { 22 public: 23 /** Constructs an unusable non-map. */ 24 CharStringMap() : map(nullptr) {} 25 CharStringMap(int32_t size, UErrorCode &errorCode) { 26 map = uhash_openSize(uhash_hashChars, uhash_compareChars, uhash_compareChars, 27 size, &errorCode); 28 } 29 CharStringMap(CharStringMap &&other) noexcept : map(other.map) { 30 other.map = nullptr; 31 } 32 CharStringMap(const CharStringMap &other) = delete; 33 ~CharStringMap() { 34 uhash_close(map); 35 } 36 37 CharStringMap &operator=(CharStringMap &&other) noexcept { 38 map = other.map; 39 other.map = nullptr; 40 return *this; 41 } 42 CharStringMap &operator=(const CharStringMap &other) = delete; 43 44 const char *get(const char *key) const { return static_cast<const char *>(uhash_get(map, key)); } 45 void put(const char *key, const char *value, UErrorCode &errorCode) { 46 uhash_put(map, const_cast<char *>(key), const_cast<char *>(value), &errorCode); 47 } 48 49 private: 50 UHashtable *map; 51 }; 52 53 U_NAMESPACE_END 54 55 #endif // __CHARSTRMAP_H__