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annotate test/testendian.c @ 1118:65f4b2dd46b7

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Date: Wed, 17 Aug 2005 11:23:40 -0400 From: Matt L <prometheus.uw@gmail.com> To: "Ryan C. Gordon" <icculus@clutteredmind.org> Subject: SDL Patch Hio, I saw your last call on the mailing list. Here's a patch which I submitted about two weeks ago which hasn't made it in. In the current sdl.m4, there's a bug where if your configure.ac, you have AC_LANG(C++) specified, it won't properly compile and link the SDL test program when you run the configure script. This is because only the default CFLAGS is overriden in sdl.m4, and in the patch below, I've fixed it so it overrides CXXFLAGS as well, allowing it to work with g++.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 18 Aug 2005 06:06:02 +0000
parents c203b4a42701
children 983df4f9c1c6
rev   line source
850
c203b4a42701 Added an endian detection and byte swapping test program
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c203b4a42701 Added an endian detection and byte swapping test program
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2 /* Test program to check SDL's CPU endian detection and byte swapping routines */
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4 #include <stdio.h>
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6 #include "SDL.h"
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7 #include "SDL_endian.h"
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9 int main(int argc, char *argv[])
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10 {
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11 Uint16 value16 = 0xCDAB;
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12 Uint32 value32 = 0xEFBEADDE;
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13 #if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
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14 Uint64 value64 = 0xEFBEADDECDAB3412LL;
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15 #endif
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17 printf("This is a %s endian machine.\n",
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18 (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
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19 printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, SDL_Swap16(value16));
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20 printf("Value 32 = 0x%X, swapped = 0x%X\n", value32, SDL_Swap32(value32));
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21 #if defined(__GNUC__) && defined(SDL_HAS_64BIT_TYPE)
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22 printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
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23 #endif
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24 return(0);
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25 }