Class to manage a linked list. Utility that can be built on or used alone
Dependents: Waldo_Embed_V2 elevator_with_queue RaheeNew DS1820 ... more
Good information on linked list basics here.
#include "mbed.h" #include "LL.h" LL<node>list; int main() { node *tmp; list.push((char *)"Two\n"); list.append((char *)"Three\n"); list.append((char *)"Four\n"); list.push((char*)"One\n"); list.append((char*)"Five\n"); for(int i=1; i<=list.length(); i++) { tmp = list.pop(i); printf("%s", (char *)tmp->data ); } error("done\n"); }
LL.h@8:a7956e9c2bf5, 2019-12-28 (annotated)
- Committer:
- sam_grove
- Date:
- Sat Dec 28 19:06:07 2019 +0000
- Revision:
- 8:a7956e9c2bf5
mbed-os has files and a class named LinkedList. Rename the file and class name to match the files.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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sam_grove | 8:a7956e9c2bf5 | 1 | /** |
sam_grove | 8:a7956e9c2bf5 | 2 | * @file LL.h |
sam_grove | 8:a7956e9c2bf5 | 3 | * @brief Core Utility - Templated Linked List class |
sam_grove | 8:a7956e9c2bf5 | 4 | * @author sam grove |
sam_grove | 8:a7956e9c2bf5 | 5 | * @version 1.0 |
sam_grove | 8:a7956e9c2bf5 | 6 | * @see |
sam_grove | 8:a7956e9c2bf5 | 7 | * |
sam_grove | 8:a7956e9c2bf5 | 8 | * Copyright (c) 2013 |
sam_grove | 8:a7956e9c2bf5 | 9 | * |
sam_grove | 8:a7956e9c2bf5 | 10 | * Licensed under the Apache License, Version 2.0 (the "License"); |
sam_grove | 8:a7956e9c2bf5 | 11 | * you may not use this file except in compliance with the License. |
sam_grove | 8:a7956e9c2bf5 | 12 | * You may obtain a copy of the License at |
sam_grove | 8:a7956e9c2bf5 | 13 | * |
sam_grove | 8:a7956e9c2bf5 | 14 | * http://www.apache.org/licenses/LICENSE-2.0 |
sam_grove | 8:a7956e9c2bf5 | 15 | * |
sam_grove | 8:a7956e9c2bf5 | 16 | * Unless required by applicable law or agreed to in writing, software |
sam_grove | 8:a7956e9c2bf5 | 17 | * distributed under the License is distributed on an "AS IS" BASIS, |
sam_grove | 8:a7956e9c2bf5 | 18 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
sam_grove | 8:a7956e9c2bf5 | 19 | * See the License for the specific language governing permissions and |
sam_grove | 8:a7956e9c2bf5 | 20 | * limitations under the License. |
sam_grove | 8:a7956e9c2bf5 | 21 | */ |
sam_grove | 8:a7956e9c2bf5 | 22 | |
sam_grove | 8:a7956e9c2bf5 | 23 | #ifndef LL_H_ |
sam_grove | 8:a7956e9c2bf5 | 24 | #define LL_H_ |
sam_grove | 8:a7956e9c2bf5 | 25 | |
sam_grove | 8:a7956e9c2bf5 | 26 | #include <stdint.h> |
sam_grove | 8:a7956e9c2bf5 | 27 | #include <cstddef> |
sam_grove | 8:a7956e9c2bf5 | 28 | |
sam_grove | 8:a7956e9c2bf5 | 29 | /** |
sam_grove | 8:a7956e9c2bf5 | 30 | * @struct node |
sam_grove | 8:a7956e9c2bf5 | 31 | * @brief The Linked List structure |
sam_grove | 8:a7956e9c2bf5 | 32 | */ |
sam_grove | 8:a7956e9c2bf5 | 33 | struct node |
sam_grove | 8:a7956e9c2bf5 | 34 | { |
sam_grove | 8:a7956e9c2bf5 | 35 | void *data; /*!< pointer to list member data */ |
sam_grove | 8:a7956e9c2bf5 | 36 | struct node *next; /*!< pointer to the next list member */ |
sam_grove | 8:a7956e9c2bf5 | 37 | }; |
sam_grove | 8:a7956e9c2bf5 | 38 | |
sam_grove | 8:a7956e9c2bf5 | 39 | /** Example using the LL Class |
sam_grove | 8:a7956e9c2bf5 | 40 | * @code |
sam_grove | 8:a7956e9c2bf5 | 41 | * #include "mbed.h" |
sam_grove | 8:a7956e9c2bf5 | 42 | * #include "LL.h" |
sam_grove | 8:a7956e9c2bf5 | 43 | * |
sam_grove | 8:a7956e9c2bf5 | 44 | * LL<node>list; |
sam_grove | 8:a7956e9c2bf5 | 45 | * |
sam_grove | 8:a7956e9c2bf5 | 46 | * int main() |
sam_grove | 8:a7956e9c2bf5 | 47 | * { |
sam_grove | 8:a7956e9c2bf5 | 48 | * node *tmp; |
sam_grove | 8:a7956e9c2bf5 | 49 | * |
sam_grove | 8:a7956e9c2bf5 | 50 | * list.push((char *)"Two\n"); |
sam_grove | 8:a7956e9c2bf5 | 51 | * list.append((char *)"Three\n"); |
sam_grove | 8:a7956e9c2bf5 | 52 | * list.append((char *)"Four\n"); |
sam_grove | 8:a7956e9c2bf5 | 53 | * list.push((char*)"One\n"); |
sam_grove | 8:a7956e9c2bf5 | 54 | * list.append((char*)"Five\n"); |
sam_grove | 8:a7956e9c2bf5 | 55 | * |
sam_grove | 8:a7956e9c2bf5 | 56 | * for(int i=1; i<=list.length(); i++) |
sam_grove | 8:a7956e9c2bf5 | 57 | * { |
sam_grove | 8:a7956e9c2bf5 | 58 | * tmp = list.pop(i); |
sam_grove | 8:a7956e9c2bf5 | 59 | * printf("%s", (char *)tmp->data); |
sam_grove | 8:a7956e9c2bf5 | 60 | * } |
sam_grove | 8:a7956e9c2bf5 | 61 | * |
sam_grove | 8:a7956e9c2bf5 | 62 | * error("done\n"); |
sam_grove | 8:a7956e9c2bf5 | 63 | * } |
sam_grove | 8:a7956e9c2bf5 | 64 | * @endcode |
sam_grove | 8:a7956e9c2bf5 | 65 | */ |
sam_grove | 8:a7956e9c2bf5 | 66 | |
sam_grove | 8:a7956e9c2bf5 | 67 | /** |
sam_grove | 8:a7956e9c2bf5 | 68 | * @class LL |
sam_grove | 8:a7956e9c2bf5 | 69 | * @brief API abstraction for a Linked List |
sam_grove | 8:a7956e9c2bf5 | 70 | */ |
sam_grove | 8:a7956e9c2bf5 | 71 | template<class retT> |
sam_grove | 8:a7956e9c2bf5 | 72 | class LL |
sam_grove | 8:a7956e9c2bf5 | 73 | { |
sam_grove | 8:a7956e9c2bf5 | 74 | protected: |
sam_grove | 8:a7956e9c2bf5 | 75 | retT *_head; |
sam_grove | 8:a7956e9c2bf5 | 76 | |
sam_grove | 8:a7956e9c2bf5 | 77 | public: |
sam_grove | 8:a7956e9c2bf5 | 78 | /** Create the LL object |
sam_grove | 8:a7956e9c2bf5 | 79 | */ |
sam_grove | 8:a7956e9c2bf5 | 80 | LL(); |
sam_grove | 8:a7956e9c2bf5 | 81 | |
sam_grove | 8:a7956e9c2bf5 | 82 | /** Deconstructor for the LL object |
sam_grove | 8:a7956e9c2bf5 | 83 | * Removes any members |
sam_grove | 8:a7956e9c2bf5 | 84 | */ |
sam_grove | 8:a7956e9c2bf5 | 85 | ~LL(); |
sam_grove | 8:a7956e9c2bf5 | 86 | |
sam_grove | 8:a7956e9c2bf5 | 87 | /** Add a member to the begining of the list |
sam_grove | 8:a7956e9c2bf5 | 88 | * @param data - Some data type that is added to the list |
sam_grove | 8:a7956e9c2bf5 | 89 | * @return The member that was just inserted (NULL if empty) |
sam_grove | 8:a7956e9c2bf5 | 90 | */ |
sam_grove | 8:a7956e9c2bf5 | 91 | retT *push(void *data); |
sam_grove | 8:a7956e9c2bf5 | 92 | |
sam_grove | 8:a7956e9c2bf5 | 93 | // /** Add a member to some position in the list |
sam_grove | 8:a7956e9c2bf5 | 94 | // * @param data - Some data type that is added to the list |
sam_grove | 8:a7956e9c2bf5 | 95 | // * @param loc - Place in the list to put the data |
sam_grove | 8:a7956e9c2bf5 | 96 | // * @return The member that was just inserted (NULL if empty) |
sam_grove | 8:a7956e9c2bf5 | 97 | // */ |
sam_grove | 8:a7956e9c2bf5 | 98 | // retT *insert(void *data, uint32_t loc); |
sam_grove | 8:a7956e9c2bf5 | 99 | |
sam_grove | 8:a7956e9c2bf5 | 100 | /** Add a member to the end of the list |
sam_grove | 8:a7956e9c2bf5 | 101 | * @param data - Some data type that is added to the list |
sam_grove | 8:a7956e9c2bf5 | 102 | * @return The member that was just inserted (NULL if empty) |
sam_grove | 8:a7956e9c2bf5 | 103 | */ |
sam_grove | 8:a7956e9c2bf5 | 104 | retT *append(void *data); |
sam_grove | 8:a7956e9c2bf5 | 105 | |
sam_grove | 8:a7956e9c2bf5 | 106 | /** Remove a member from the list |
sam_grove | 8:a7956e9c2bf5 | 107 | * @param loc - The location of the member to remove |
sam_grove | 8:a7956e9c2bf5 | 108 | * @return The head of the list |
sam_grove | 8:a7956e9c2bf5 | 109 | */ |
sam_grove | 8:a7956e9c2bf5 | 110 | retT *remove(uint32_t loc); |
sam_grove | 8:a7956e9c2bf5 | 111 | |
sam_grove | 8:a7956e9c2bf5 | 112 | /** Get access to a member from the list |
sam_grove | 8:a7956e9c2bf5 | 113 | * @param loc - The location of the member to access |
sam_grove | 8:a7956e9c2bf5 | 114 | * @return The member that was just requested (NULL if empty or out of bounds) |
sam_grove | 8:a7956e9c2bf5 | 115 | */ |
sam_grove | 8:a7956e9c2bf5 | 116 | retT *pop(uint32_t loc); |
sam_grove | 8:a7956e9c2bf5 | 117 | |
sam_grove | 8:a7956e9c2bf5 | 118 | /** Get the length of the list |
sam_grove | 8:a7956e9c2bf5 | 119 | * @return The number of members in the list |
sam_grove | 8:a7956e9c2bf5 | 120 | */ |
sam_grove | 8:a7956e9c2bf5 | 121 | uint32_t length(void); |
sam_grove | 8:a7956e9c2bf5 | 122 | }; |
sam_grove | 8:a7956e9c2bf5 | 123 | |
sam_grove | 8:a7956e9c2bf5 | 124 | #endif /* LINKEDLIST_H_ */ |