SDL_test_random.h File Reference

#include "begin_code.h"
#include "close_code.h"

Go to the source code of this file.

Classes
struct	SDLTest_RandomContext

Macros
#define	SDLTest_RandomInt(c)   ((int)SDLTest_Random(c))

Functions
void	SDLTest_RandomInit (SDLTest_RandomContext *rndContext, unsigned int xi, unsigned int ci)
	Initialize random number generator with two integers. More...
void	SDLTest_RandomInitTime (SDLTest_RandomContext *rndContext)
	Initialize random number generator based on current system time. More...
unsigned int	SDLTest_Random (SDLTest_RandomContext *rndContext)
	Initialize random number generator based on current system time. More...

Detailed Description

Include file for SDL test framework.

This code is a part of the SDL2_test library, not the main SDL library.

Definition in file SDL_test_random.h.

Macro Definition Documentation

SDLTest_RandomInt

#define SDLTest_RandomInt

(

c

)

((int)SDLTest_Random(c))

Definition at line 54 of file SDL_test_random.h.

Function Documentation

SDLTest_Random()

unsigned int SDLTest_Random

(

SDLTest_RandomContext *

rndContext

)

Initialize random number generator based on current system time.

Note: ...RandomInit() or ...RandomInitTime() must have been called before using this function.

Parameters

rndContext

pointer to context structure

Returns

A random number (32bit unsigned integer)

SDLTest_RandomInit()

void SDLTest_RandomInit	(	SDLTest_RandomContext *	rndContext,
		unsigned int	xi,
		unsigned int	ci
	)

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.

Parameters

rndContext	pointer to context structure
xi	integer that defines the random sequence
ci	integer that defines the random sequence

SDLTest_RandomInitTime()

void SDLTest_RandomInitTime

(

SDLTest_RandomContext *

rndContext

)

Initialize random number generator based on current system time.

Parameters

rndContext

pointer to context structure