test/testendian.c
author Sam Lantinga <slouken@libsdl.org>
Tue, 21 Feb 2006 09:11:53 +0000
changeset 1405 983df4f9c1c6
parent 850 c203b4a42701
permissions -rw-r--r--
Added a test case


/* Test program to check SDL's CPU endian detection and byte swapping routines */

#include <stdio.h>

#include "SDL.h"
#include "SDL_endian.h"

int main(int argc, char *argv[])
{
	Uint16 value16 = 0xCDAB;
	Uint32 value32 = 0xEFBEADDE;
#if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
	Uint64 value64 = 0xEFBEADDECDAB3412LL;
#endif

	printf("This system is running %s\n",
#if __AIX__
			"AIX"
#elif __AMIGA__
			"AmigaOS"
#elif __BEOS__
			"BeOS"
#elif __BSDI__
			"BSDI"
#elif __DREAMCAST__
			"Dreamcast"
#elif __FREEBSD__
			"FreeBSD"
#elif __HPUX__
			"HP-UX"
#elif __IRIX__
			"Irix"
#elif __LINUX__
			"Linux"
#elif __MACOS__
			"MacOS Classic"
#elif __MACOSX__
			"MacOS X"
#elif __NETBSD__
			"NetBSD"
#elif __OPENBSD__
			"OpenBSD"
#elif __OS2__
			"OS/2"
#elif __OSF__
			"OSF/1"
#elif __QNXNTO__
			"QNX Neutrino"
#elif __RISCOS__
			"RISC OS"
#elif __SOLARIS__
			"Solaris"
#elif __WIN32__
#ifdef _WIN32_WCE
			"Windows CE"
#else
			"Windows"
#endif
#else
			"an unknown operating system!"
#endif
			);

	printf("This is a %s endian machine.\n",
		(SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
	printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, SDL_Swap16(value16));
	printf("Value 32 = 0x%X, swapped = 0x%X\n", value32, SDL_Swap32(value32));
#if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
	printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
#endif
	return(0);
}