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doc: improve coding-style descriptipn, fix #1468

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This patch removes a broken link to an external blog posting and adds
an example for the proper use of tabs and spaces instead.
This commit is contained in:
Norman Feske 2015-03-27 11:11:51 +01:00 committed by Christian Helmuth
parent 1b155dbaa6
commit 9fcce49548
1 changed files with 30 additions and 21 deletions
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51
doc/coding_style.txt
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@ -18,16 +18,15 @@ macros.
! COLOR_GREEN = 3
! };
:Meta-programming:
:Meta programming:
Use templates instead of pre-processor macros.
In contrast to macros, templates are type-safe
and fit well with the implementation syntax.
Use templates instead of pre-processor macros. In contrast to macros,
templates are type-safe and fit well with the implementation syntax.
:Conditional-code inclusion:
Please avoid C-hacker style '#ifdef CONFIG_PLATFROM' - '#endif'
constructs but instead, factor-out the encapsulated code into a
constructs. Instead, factor-out the encapsulated code into a
separate file and introduce a proper function interface.
The build process should then be used to select the appropriate
platform-specific files at compile time. Keep platform dependent
@ -50,17 +49,18 @@ Header of each file
Identifiers
===========
* First character of class names uppercase, any other characters lowercase
* Function and variable names lower case
* 'Multi_word_identifiers' via underline
* 'CONSTANTS' upper case
* Private and protected members of a class begin with an '_'-character
* The first character of class names are uppercase, any other characters are
lowercase.
* Function and variable names are lower case.
* 'Multi_word_identifiers' use underline to separate words.
* 'CONSTANTS' and template arguments are upper case.
* Private and protected members of a class begin with an '_'-character.
* Accessor functions are named after their corresponding attributes:
! /**
! * Request private member variable
! */
! int value() { return _value; }
! int value() const { return _value; }
!
! /**
! * Set the private member variable
@ -73,14 +73,22 @@ Indentation
* Use one tab per indentation step. *Do not mix tabs and spaces!*
* Use no tabs except at the beginning of a line.
* Use spaces for alignment
* Use spaces for the alignment of continuation lines such as function
arguments that span multiple lines. The alignment spaces of such lines
should start after the (tab-indented) indentation level. For example:
! {
! <tab>function_with_many_arguments(arg1,
! <tab><--- spaces for aligment --->arg2,
! ...
! }
* Remove trailing spaces at the end of lines
See [http://web.archive.org/web/20050311153439/http://electroly.com/mt/archives/000002.html]
for a more detailed description.
This way, everyone can set his preferred tabsize in his editor
This way, each developer can set his preferred tab size in his editor
and the source code always looks good.
_Hint:_ In VIM, use the 'set list' and 'set listchars' commands to make tabs
and spaces visible.
Switch statements
~~~~~~~~~~~~~~~~~
@ -165,12 +173,13 @@ prepended by a header as follows:
! /**
! * Short description
! *
! * \param a meaning of parameter a
! * \param b meaning of parameter b
! * \param c,d meaning of parameters c and d
! * \param a meaning of parameter a
! * \param b meaning of parameter b
! * \param c,d meaning of parameters c and d
! *
! * \return meaning of return value
! * \retval 0 meaning of the return value 0
! * \throw Exception_type meaning of the exception
! *
! * \return meaning of return value
! *
! * More detailed information about the function. This is optional.
! */