| 1 | = Coding Style = |
| 2 | |
| 3 | = General rules = |
| 4 | |
| 5 | - Code lines should not be longer than 80 characters |
| 6 | - The formatting in general should be something similar to that Emacs C++-mode does by default. I.e. |
| 7 | - use two spaces for indenting. |
| 8 | |
| 9 | == Naming Conventions == |
| 10 | |
| 11 | In order to make development easier we have made some conventions |
| 12 | according to coding style. These include names of types, classes, |
| 13 | functions, variables, constants and exceptions. If these conventions |
| 14 | are met in one's code then it is easier to read and maintain |
| 15 | it. Please comply with these conventions if you want to contribute |
| 16 | developing LEMON library. |
| 17 | |
| 18 | '''Note:''' When the coding style requires the capitalization of an abbreviation, |
| 19 | only the first letter should be upper case. |
| 20 | |
| 21 | {{{ |
| 22 | #!cpp |
| 23 | XmlReader |
| 24 | }}} |
| 25 | |
| 26 | |
| 27 | '''Warning:''' In some cases we diverge from these rules. |
| 28 | This is primary done because STL uses different naming convention and |
| 29 | in certain cases |
| 30 | it is beneficial to provide STL compatible interface. |
| 31 | |
| 32 | === File names === |
| 33 | |
| 34 | The header file names should look like the following. |
| 35 | |
| 36 | {{{ |
| 37 | #!cpp |
| 38 | header_file.h |
| 39 | }}} |
| 40 | |
| 41 | Note that all standard LEMON headers are located in the {{{lemon}}} subdirectory, |
| 42 | so you should include them from C++ source like this: |
| 43 | |
| 44 | {{{ |
| 45 | #!cpp |
| 46 | #include <lemon/header_file.h> |
| 47 | }}} |
| 48 | |
| 49 | The source code files use the same style and they have '.cc' extension. |
| 50 | |
| 51 | {{{ |
| 52 | #!cpp |
| 53 | source_code.cc |
| 54 | }}} |
| 55 | |
| 56 | === Classes and other types === |
| 57 | |
| 58 | The name of a class or any type should look like the following. |
| 59 | |
| 60 | {{{ |
| 61 | #!cpp |
| 62 | AllWordsCapitalizedWithoutUnderscores |
| 63 | }}} |
| 64 | |
| 65 | === Methods and other functions === |
| 66 | |
| 67 | The name of a function should look like the following. |
| 68 | |
| 69 | {{{ |
| 70 | #!cpp |
| 71 | firstWordLowerCaseRestCapitalizedWithoutUnderscores |
| 72 | }}} |
| 73 | |
| 74 | === Constants and macros === |
| 75 | |
| 76 | The names of constants and macros should look like the following. |
| 77 | |
| 78 | {{{ |
| 79 | #!cpp |
| 80 | ALL_UPPER_CASE_WITH_UNDERSCORES |
| 81 | }}} |
| 82 | |
| 83 | === Class and instance member variables, auto variables === |
| 84 | |
| 85 | The names of class and instance member variables and auto variables (=variables used locally in methods) should look like the following. |
| 86 | |
| 87 | {{{ |
| 88 | #!cpp |
| 89 | all_lower_case_with_underscores |
| 90 | }}} |
| 91 | |
| 92 | === Private member variables === |
| 93 | |
| 94 | Private member variables should start with underscore |
| 95 | |
| 96 | {{{ |
| 97 | #!cpp |
| 98 | _start_with_underscores |
| 99 | }}} |
| 100 | |
| 101 | === Exceptions === |
| 102 | |
| 103 | When writing exceptions please comply the following naming conventions. |
| 104 | |
| 105 | {{{ |
| 106 | #!cpp |
| 107 | ClassNameEndsWithException |
| 108 | }}} |
| 109 | |
| 110 | or |
| 111 | |
| 112 | {{{ |
| 113 | #!cpp |
| 114 | ClassNameEndsWithError |
| 115 | }}} |
| 116 | |
| 117 | == Template header file == |
| 118 | |
| 119 | Each LEMON header file should look like this: |
| 120 | |
| 121 | {{{ |
| 122 | #!cpp |
| 123 | /* -*- C++ -*- |
| 124 | * |
| 125 | * This file is a part of LEMON, a generic C++ optimization library |
| 126 | * |
| 127 | * Copyright (C) 2003-2008 |
| 128 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
| 129 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
| 130 | * |
| 131 | * Permission to use, modify and distribute this software is granted |
| 132 | * provided that this copyright notice appears in all copies. For |
| 133 | * precise terms see the accompanying LICENSE file. |
| 134 | * |
| 135 | * This software is provided "AS IS" with no warranty of any kind, |
| 136 | * express or implied, and with no claim as to its suitability for any |
| 137 | * purpose. |
| 138 | * |
| 139 | */ |
| 140 | |
| 141 | #ifndef LEMON_TEMPLATE_H |
| 142 | #define LEMON_TEMPLATE_H |
| 143 | |
| 144 | #endif // LEMON_TEMPLATE_H |
| 145 | }}} |