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Location: cpp/openttd-patchpack/source/src/endian_check.cpp - annotation
r7377:722cd70012ed
1.7 KiB
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(svn r10746) -Codechange: add a generic superclass for almost all pool items so we do not have to duplicate code for each of the pool item classes and use it for the station and roadstop classes.
r5584:545d748cc681 r5584:545d748cc681 r6125:eb40461cb765 r6125:eb40461cb765 r6125:eb40461cb765 r6125:eb40461cb765 r6125:eb40461cb765 r6125:eb40461cb765 r6125:eb40461cb765 r6125:eb40461cb765 r6125:eb40461cb765 r5584:545d748cc681 r5587:034e5e185dc2 r5584:545d748cc681 r7321:b5b529587bb8 r7321:b5b529587bb8 r6432:3f618c3647c2 r6432:3f618c3647c2 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r5584:545d748cc681 r5584:545d748cc681 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r7321:b5b529587bb8 r5584:545d748cc681 r7321:b5b529587bb8 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 | /* $Id$ */
/** @file endian_check.cpp
* This pretty simple file checks if the system is LITTLE_ENDIAN or BIG_ENDIAN
* it does that by putting a 1 and a 0 in an array, and read it out as one
* number. If it is 1, it is LITTLE_ENDIAN, if it is 256, it is BIG_ENDIAN
*
* After that it outputs the contents of an include files (endian.h)
* that says or TTD_LITTLE_ENDIAN, or TTD_BIG_ENDIAN. Makefile takes
* care of the real writing to the file. */
#include <stdio.h>
#include <string.h>
/**
* Main call of the endian_check program
* @param argc argument count
* @param argv arguments themselves
* @return exit code
*/
int main (int argc, char *argv[])
{
unsigned char endian_test[2] = { 1, 0 };
int force_BE = 0, force_LE = 0, force_PREPROCESSOR = 0;
if (argc > 1 && strcmp(argv[1], "BE") == 0) force_BE = 1;
if (argc > 1 && strcmp(argv[1], "LE") == 0) force_LE = 1;
if (argc > 1 && strcmp(argv[1], "PREPROCESSOR") == 0) force_PREPROCESSOR = 1;
printf("#ifndef ENDIAN_H\n#define ENDIAN_H\n");
if (force_LE == 1) {
printf("#define TTD_LITTLE_ENDIAN\n");
} else if (force_BE == 1) {
printf("#define TTD_BIG_ENDIAN\n");
} else if (force_PREPROCESSOR == 1) {
/* Support for universal binaries on OSX
* Universal binaries supports both PPC and x86
* If a compiler for OSX gets this setting, it will always pick the correct endian and no test is needed
*/
printf("#ifdef __BIG_ENDIAN__\n");
printf("#define TTD_BIG_ENDIAN\n");
printf("#else\n");
printf("#define TTD_LITTLE_ENDIAN\n");
printf("#endif\n");
} else if (*(short*)endian_test == 1 ) {
printf("#define TTD_LITTLE_ENDIAN\n");
} else {
printf("#define TTD_BIG_ENDIAN\n");
}
printf("#endif\n");
return 0;
}
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