AppleWin/docs/CodingConventions.txt
2014-05-23 22:59:02 +01:00

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Coding Conventions for AppleWin
===============================
History:
v2 - 16-Feb-2006 (TC)
. Updated after discussion with M.Pohoreski
v1 - 04-Feb-2006 (TC)
. First draft
-------------------------------------------------------------------------------
Introduction:
-------------
This doc defines a very simple set of coding guidelines to be used for AppleWin.
This ensures consistency & readability throughout the project, when worked on
by multiple developers.
-------------------------------------------------------------------------------
1) Project files:
1.1: Each module to have corresponding header
EG. Debug.cpp has a corresponding Debug.h
This is for shared vars, enums, structs, classes, etc.
1.2: AppleWin.h to only be used as per 1.1
1.3: Common.h to be used for any common definitions
EG. const/enum/struct
Obviously not for global funcs or vars.
1.4: PCH (StdAfx.h)
Could ditch this.
Does this gain anything for such a simple project?
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2) Coding Style:
2.1: Naming
The following simplied Hungarian style must be used:
Prefixes:
a : array
b : bool
e : enum variable
g_ : global
h : handle
i : iterator (eg. UINT, STL-iterator)
m : STL map
m_ : member
n : int
p : pointer
r : reference
s : string
sg_p : singleton (could also use 'sgp' - to be reviewed)
u : unsigned int
v : STL vector
Tags:
_e : named enum definitions
_t : struct/typedef
Legacy:
dw : DWORD [legacy: existing 'dw' to be replaced with 'u' prefix]
sz : string (null-terminated) [legacy:
EG:
enum MODE_e {MODE1, MODE2, MODE2};
MODE_e eMode;
struct PAIR_t
{
UINT uA;
UINT uB;
};
Simple loop counters (i,j,k) don't need to adhere to this style.
Don't go Hungarian-mad (you might argue that we already have :)
. an array of any type can just be prefixed with 'a'. Eg. Array of bools:
bool aFlags[NUM_FLAGS];
. a pointer to any type can just be prefixed with 'p'. Eg. Pointer to array of bools:
bool* pFlags;
Naming for parameters that are being modified (eg. OUT):
It is recommended (but not mandatory) to use a suffix of OUT or '_', eg:
bool Find(int* pFoundOUT);
bool Find(int* pFound_);
2.2: Matching braces
These should be have same indentation, unless the braces fit neatly on one line.
EG:
for (int i=0; i<10; i++)
{
// Some code
}
2.3: Scope of module vars/funcs
If module vars/funcs aren't wrapped in a class, then declare as static if not global.
2.4: const/enum favoured over #define
Try to use const/enum instead of #define
2.4: Use of bool over BOOL
Always use bool instead of BOOL
2.5: File header
GPL header, followed by description of module & author.
2.6: Indentation
Tabs favoured over spaces.
2.7: Expression to be well spaced and parenthesised
It is recommended (but not mandatory):
. to have/use explicit parenthesis
. to have spaces between operators
Eg:
. Prefer: z = ((a + b) + 1) instead of: z=((a+b)+1)