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SDL_version.h
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SDL_version.h
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* \file SDL_version.h
*
* This header defines the current SDL version
*/
#ifndef _SDL_version_h
#define _SDL_version_h
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
/**
* \struct SDL_version
* \brief Information the version of SDL in use.
*
* Represents the library's version as three levels: major revision
* (increments with massive changes, additions, and enhancements),
* minor revision (increments with backwards-compatible changes to the
* major revision), and patchlevel (increments with fixes to the minor
* revision).
*
* \sa SDL_VERSION
* \sa SDL_GetVersion
*/
typedef struct SDL_version
{
Uint8 major; /**< major version */
Uint8 minor; /**< minor version */
Uint8 patch; /**< update version */
} SDL_version;
/* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL
*/
#define SDL_MAJOR_VERSION 1
#define SDL_MINOR_VERSION 3
#define SDL_PATCHLEVEL 0
/**
* \def SDL_VERSION(x)
* \brief Macro to determine SDL version program was compiled against.
*
* This macro fills in a SDL_version structure with the version of the
* library you compiled against. This is determined by what header the
* compiler uses. Note that if you dynamically linked the library, you might
* have a slightly newer or older version at runtime. That version can be
* determined with SDL_GetVersion(), which, unlike SDL_VERSION,
* is not a macro.
*
* \param x A pointer to a SDL_version struct to initialize.
*
* \sa SDL_version
* \sa SDL_GetVersion
*/
#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))
/**
* \fn void SDL_GetVersion(SDL_version *ver)
* \brief Get the version of SDL that is linked against your program.
*
* If you are using a shared library (DLL) version of SDL, then it is
* possible that it will be different than the version you compiled against.
*
* This is a real function; the macro SDL_VERSION tells you what version
* of SDL you compiled against:
*
* \code
* SDL_version compiled;
* SDL_version linked;
*
* SDL_VERSION(&compiled);
* SDL_GetVersion(&linked);
* printf("We compiled against SDL version %d.%d.%d ...\n",
* compiled.major, compiled.minor, compiled.patch);
* printf("But we linked against SDL version %d.%d.%d.\n",
* linked.major, linked.minor, linked.patch);
* \endcode
*
* This function may be called safely at any time, even before SDL_Init().
*
* \sa SDL_VERSION
*/
extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#include "close_code.h"
#endif /* _SDL_version_h */
/* vi: set ts=4 sw=4 expandtab: */