1 /* 2 ****************************************************************************** 3 * Copyright (C) 1997-2008, International Business Machines 4 * Corporation and others. All Rights Reserved. 5 ****************************************************************************** 6 * file name: nfrlist.h 7 * encoding: US-ASCII 8 * tab size: 8 (not used) 9 * indentation:4 10 * 11 * Modification history 12 * Date Name Comments 13 * 10/11/2001 Doug Ported from ICU4J 14 */ 15 16 #ifndef NFRLIST_H 17 #define NFRLIST_H 18 19 #include "unicode/rbnf.h" 20 21 #if U_HAVE_RBNF 22 23 #include "unicode/uobject.h" 24 #include "nfrule.h" 25 26 #include "cmemory.h" 27 28 U_NAMESPACE_BEGIN 29 30 // unsafe class for internal use only. assume memory allocations succeed, indexes are valid. 31 // should be a template, but we can't use them 32 33 class NFRuleList : public UMemory { 34 protected: 35 NFRule** fStuff; 36 uint32_t fCount; 37 uint32_t fCapacity; 38 public: 39 NFRuleList(uint32_t capacity = 10) 40 : fStuff(capacity ? (NFRule**)uprv_malloc(capacity * sizeof(NFRule*)) : NULL) 41 , fCount(0) 42 , fCapacity(capacity) {}; 43 ~NFRuleList() { 44 if (fStuff) { 45 for(uint32_t i = 0; i < fCount; ++i) { 46 delete fStuff[i]; 47 } 48 uprv_free(fStuff); 49 } 50 } 51 NFRule* operator[](uint32_t index) const { return fStuff != NULL ? fStuff[index] : NULL; } 52 NFRule* remove(uint32_t index) { 53 if (fStuff == NULL) { 54 return NULL; 55 } 56 NFRule* result = fStuff[index]; 57 fCount -= 1; 58 for (uint32_t i = index; i < fCount; ++i) { // assumes small arrays 59 fStuff[i] = fStuff[i+1]; 60 } 61 return result; 62 } 63 void add(NFRule* thing) { 64 if (fCount == fCapacity) { 65 fCapacity += 10; 66 fStuff = (NFRule**)uprv_realloc(fStuff, fCapacity * sizeof(NFRule*)); // assume success 67 } 68 if (fStuff != NULL) { 69 fStuff[fCount++] = thing; 70 } else { 71 fCapacity = 0; 72 fCount = 0; 73 } 74 } 75 uint32_t size() const { return fCount; } 76 NFRule* last() const { return (fCount > 0 && fStuff != NULL) ? fStuff[fCount-1] : NULL; } 77 NFRule** release() { 78 add(NULL); // ensure null termination 79 NFRule** result = fStuff; 80 fStuff = NULL; 81 fCount = 0; 82 fCapacity = 0; 83 return result; 84 } 85 86 private: 87 NFRuleList(const NFRuleList &other); // forbid copying of this class 88 NFRuleList &operator=(const NFRuleList &other); // forbid copying of this class 89 }; 90 91 U_NAMESPACE_END 92 93 /* U_HAVE_RBNF */ 94 #endif 95 96 // NFRLIST_H 97 #endif 98
