test/testendian.c
author Ryan C. Gordon <icculus@icculus.org>
Fri, 13 Jan 2006 02:32:07 +0000
changeset 1246 ca51a76a7328
parent 850 c203b4a42701
child 1405 983df4f9c1c6
permissions -rw-r--r--
Make error message meaningful if dlopen() fails on libX11.
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/* Test program to check SDL's CPU endian detection and byte swapping routines */
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#include <stdio.h>
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#include "SDL.h"
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#include "SDL_endian.h"
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int main(int argc, char *argv[])
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{
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	Uint16 value16 = 0xCDAB;
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	Uint32 value32 = 0xEFBEADDE;
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#if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
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	Uint64 value64 = 0xEFBEADDECDAB3412LL;
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#endif
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	printf("This is a %s endian machine.\n",
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		(SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
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	printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, SDL_Swap16(value16));
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	printf("Value 32 = 0x%X, swapped = 0x%X\n", value32, SDL_Swap32(value32));
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#if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
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	printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
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#endif
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	return(0);
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}