cpp/openttd-patchpack/source Files · endian_check.c

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Location: cpp/openttd-patchpack/source/endian_check.c

r2072:93fbc12acd5b 928 B text/x-c Show Annotation Show as Raw Download as Raw

ludde

(svn r2582) Fix: Prevent generating unrealistically many Oil refineries on large maps. They are always placed next to the borderline, so the perimeter is used instead of area to scale the number of those industries.

#include <stdio.h>

// 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.

int main (int argc, char *argv[]) {
  unsigned char EndianTest[2] = { 1, 0 };
  int force_BE = 0, force_LE = 0;

  if (argc > 1 && strcmp(argv[1], "BE") == 0)
    force_BE = 1;
  if (argc > 1 && strcmp(argv[1], "LE") == 0)
    force_LE = 1;

  printf("#ifndef ENDIAN_H\n#define ENDIAN_H\n");

  if ( (*(short *) EndianTest == 1 && force_BE != 1) || force_LE == 1)
    printf("#define TTD_LITTLE_ENDIAN\n");
  else
    printf("#define TTD_BIG_ENDIAN\n");

  printf("#endif\n");

  return 0;
}