mirror of
https://github.com/joel16/SDL2.git
synced 2024-12-13 22:38:34 +00:00
f70b972d49
From: David Symmonds
Subject: SDL Typedef Structs
Hi, Thanks for the SDL libraries, I have been using them for about a year
now and they are really brilliant. One thing that I have just found whilst
using them through C++ (and needing forward declarations) is that when you
typedef structs you sometimes use
typedef struct Name
{
...
}Name;
e.g. SDL_Surface
and other times use
typedef struct
{
...
}Name;
e.g. SDL_Rect
The first type works fine, when I define a header file I can just put
'struct Name;' at the top and use the Name throughout. However, the second
type is harder to use in a header, and I haven't found a way yet, other than
to include 'SDL.h' in the header file (undesirable). Would there be any harm
in changing the definition of SDL_Rect and such like to the second form?
--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40912
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*
|
|
SDL - Simple DirectMedia Layer
|
|
Copyright (C) 1997-2004 Sam Lantinga
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with this library; if not, write to the Free
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
Sam Lantinga
|
|
slouken@libsdl.org
|
|
*/
|
|
|
|
#ifdef SAVE_RCSID
|
|
static char rcsid =
|
|
"@(#) $Id$";
|
|
#endif
|
|
|
|
/* This header defines the current SDL version */
|
|
|
|
#ifndef _SDL_version_h
|
|
#define _SDL_version_h
|
|
|
|
#include "SDL_types.h"
|
|
|
|
#include "begin_code.h"
|
|
/* Set up for C function definitions, even when using C++ */
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL
|
|
*/
|
|
#define SDL_MAJOR_VERSION 1
|
|
#define SDL_MINOR_VERSION 2
|
|
#define SDL_PATCHLEVEL 8
|
|
|
|
typedef struct SDL_version {
|
|
Uint8 major;
|
|
Uint8 minor;
|
|
Uint8 patch;
|
|
} SDL_version;
|
|
|
|
/* This macro can be used to fill a version structure with the compile-time
|
|
* version of the SDL library.
|
|
*/
|
|
#define SDL_VERSION(X) \
|
|
{ \
|
|
(X)->major = SDL_MAJOR_VERSION; \
|
|
(X)->minor = SDL_MINOR_VERSION; \
|
|
(X)->patch = SDL_PATCHLEVEL; \
|
|
}
|
|
|
|
/* This macro turns the version numbers into a numeric value:
|
|
(1,2,3) -> (1203)
|
|
This assumes that there will never be more than 100 patchlevels
|
|
*/
|
|
#define SDL_VERSIONNUM(X, Y, Z) \
|
|
(X)*1000 + (Y)*100 + (Z)
|
|
|
|
/* This is the version number macro for the current SDL version */
|
|
#define SDL_COMPILEDVERSION \
|
|
SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)
|
|
|
|
/* This macro will evaluate to true if compiled with SDL at least X.Y.Z */
|
|
#define SDL_VERSION_ATLEAST(X, Y, Z) \
|
|
(SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))
|
|
|
|
/* This function gets the version of the dynamically linked SDL library.
|
|
it should NOT be used to fill a version structure, instead you should
|
|
use the SDL_Version() macro.
|
|
*/
|
|
extern DECLSPEC const SDL_version * SDLCALL SDL_Linked_Version(void);
|
|
|
|
/* Ends C function definitions when using C++ */
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#include "close_code.h"
|
|
|
|
#endif /* _SDL_version_h */
|