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LEMON Coding Style

# Naming Conventions

In order to make development easier we have made some conventions according to coding style. These include names of types, classes, functions, variables, constants and exceptions. If these conventions are met in one's code then it is easier to read and maintain it. Please comply with these conventions if you want to contribute developing LEMON library.

Note
  When the coding style requires the capitalization of an abbreviation, only the first letter should be upper case.

XmlReader

Warning
  In some cases we diverge from these rules. This is primary done because STL uses different naming convention and in certain cases it is beneficial to provide STL compatible interface.

## File Names

The header file names should look like the following.

header_file.h

Note that all standard LEMON headers are located in the `lemon` subdirectory, so you should include them from C++ source like this:

#include <lemon/header_file.h>

The source code files use the same style and they have '.cc' extension.

source_code.cc

## Classes and other types

The name of a class or any type should look like the following.

AllWordsCapitalizedWithoutUnderscores

## Methods and other functions

The name of a function should look like the following.

firstWordLowerCaseRestCapitalizedWithoutUnderscores

## Constants, Macros

The names of constants and macros should look like the following.

ALL_UPPER_CASE_WITH_UNDERSCORES

## Class and instance member variables, auto variables

The names of class and instance member variables and auto variables (=variables used locally in methods) should look like the following.

all_lower_case_with_underscores

## Private member variables

Private member variables should start with underscore.

_start_with_underscore

## Exceptions

When writing exceptions please comply the following naming conventions.

ClassNameEndsWithException

or

ClassNameEndsWithError

# Template Header File

Each LEMON header file should look like this:

/* -*- mode: C++; indent-tabs-mode: nil; -*-
*
* This file is a part of LEMON, a generic C++ optimization library.
*
* Copyright (C) 2003-2009
* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
* (Egervary Research Group on Combinatorial Optimization, EGRES).
*
* Permission to use, modify and distribute this software is granted
* provided that this copyright notice appears in all copies. For
* precise terms see the accompanying LICENSE file.
*
* This software is provided "AS IS" with no warranty of any kind,
* express or implied, and with no claim as to its suitability for any
* purpose.
*
*/
#ifndef LEMON_TEMPLATE_H
#define LEMON_TEMPLATE_H
#endif // LEMON_TEMPLATE_H