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/* This test script is part of GDB, the GNU debugger.
 
   Copyright 1999, 2004,
   Free Software Foundation, Inc.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
 
/* Test long long expression; test printing in general.
 *
 * /CLO/BUILD_ENV/Exports/cc -g +e -o long_long long_long.c
 *
 * or
 *
 * cc +e +DA2.0 -g -o long_long long_long.c
 */
 
#include <string.h>
 
enum { MAX_BYTES = 16 };
 
void
pack (unsigned char b[MAX_BYTES], int size, int nr)
{
  static long long val[] = { 0x123456789abcdefLL, 01234567123456701234567LL, 12345678901234567890ULL};
  volatile static int e = 1;
  int i;
  for (i = 0; i < nr; i++)
    {
      int offset;
      if (*(char *)&e)
	/* Little endian.  */
	offset = sizeof (long long) - size;
      else
	/* Big endian endian.  */
	offset = 0;
      memcpy (b + size * i, (char *) val + sizeof (long long) * i + offset, size);
    }
}
 
unsigned char b[MAX_BYTES];
unsigned char h[MAX_BYTES];
unsigned char w[MAX_BYTES];
unsigned char g[MAX_BYTES];
 
unsigned char c[MAX_BYTES];
unsigned char s[MAX_BYTES];
unsigned char i[MAX_BYTES];
unsigned char l[MAX_BYTES];
unsigned char ll[MAX_BYTES];
 
int known_types()
{
  /* A union is used here as, hopefully it has well defined packing
     rules.  */
  struct {
    long long bin, oct, dec, hex;    
  } val;
  memset (&val, 0, sizeof val);
 
  /* Known values, filling the full 64 bits.  */
  val.bin = 0x123456789abcdefLL; /* 64 bits = 16 hex digits */
  val.oct = 01234567123456701234567LL; /*  = 21+ octal digits */
  val.dec = 12345678901234567890ULL;    /*  = 19+ decimal digits */
 
  /* Stop here and look!  */
  val.hex = val.bin - val.dec | val.oct;
 
  return 0;
}
 
int main() {
 
   /* Pack Byte, Half, Word and Giant arrays with byte-orderd values.
      That way "(gdb) x" gives the same output on different
      architectures.  */
   pack (b, 1, 2);
   pack (h, 2, 2);
   pack (w, 4, 2);
   pack (g, 8, 2);
   pack (c, sizeof (char), 2);
   pack (s, sizeof (short), 2);
   pack (i, sizeof (int), 2);
   pack (l, sizeof (long), 2);
   pack (ll, sizeof (long long), 2);
 
   known_types();
 
   return 0;
}