Mercurial > sdl-ios-xcode
view test/testendian.c @ 1118:65f4b2dd46b7
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 |
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/* 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 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); }