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Diffstat (limited to 'src/SDL2/include/SDL_test_random.h')
-rw-r--r-- | src/SDL2/include/SDL_test_random.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/src/SDL2/include/SDL_test_random.h b/src/SDL2/include/SDL_test_random.h deleted file mode 100644 index 6c5660d8..00000000 --- a/src/SDL2/include/SDL_test_random.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org> - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. -*/ - -/** - * \file SDL_test_random.h - * - * Include file for SDL test framework. - * - * This code is a part of the SDL2_test library, not the main SDL library. - */ - -/* - - A "32-bit Multiply with carry random number generator. Very fast. - Includes a list of recommended multipliers. - - multiply-with-carry generator: x(n) = a*x(n-1) + carry mod 2^32. - period: (a*2^31)-1 - -*/ - -#ifndef _SDL_test_random_h -#define _SDL_test_random_h - -#include "begin_code.h" -/* Set up for C function definitions, even when using C++ */ -#ifdef __cplusplus -extern "C" { -#endif - -/* --- Definitions */ - -/* - * Macros that return a random number in a specific format. - */ -#define SDLTest_RandomInt(c) ((int)SDLTest_Random(c)) - -/* - * Context structure for the random number generator state. - */ - typedef struct { - unsigned int a; - unsigned int x; - unsigned int c; - unsigned int ah; - unsigned int al; - } SDLTest_RandomContext; - - -/* --- Function prototypes */ - -/** - * \brief Initialize random number generator with two integers. - * - * Note: The random sequence of numbers returned by ...Random() is the - * same for the same two integers and has a period of 2^31. - * - * \param rndContext pointer to context structure - * \param xi integer that defines the random sequence - * \param ci integer that defines the random sequence - * - */ - void SDLTest_RandomInit(SDLTest_RandomContext * rndContext, unsigned int xi, - unsigned int ci); - -/** - * \brief Initialize random number generator based on current system time. - * - * \param rndContext pointer to context structure - * - */ - void SDLTest_RandomInitTime(SDLTest_RandomContext *rndContext); - - -/** - * \brief Initialize random number generator based on current system time. - * - * Note: ...RandomInit() or ...RandomInitTime() must have been called - * before using this function. - * - * \param rndContext pointer to context structure - * - * \returns A random number (32bit unsigned integer) - * - */ - unsigned int SDLTest_Random(SDLTest_RandomContext *rndContext); - - -/* Ends C function definitions when using C++ */ -#ifdef __cplusplus -} -#endif -#include "close_code.h" - -#endif /* _SDL_test_random_h */ - -/* vi: set ts=4 sw=4 expandtab: */ |