4.3BSD - /usr/src/ucb/dbx/tests/cc/bitfields.c

   1: typedef unsigned int uint;
   2: 
   3: struct dot {
   4:     uint  cost       :24;
   5:     uint  type           : 3;
   6:     uint  dirToCenter    : 3;
   7:     uint  pad        : 1;
   8:     uint  pin        : 1;
   9:     uint  traceback  : 3;
  10:     uint  traceforward   : 3;
  11:     uint  expanded   : 1;
  12:     uint  underDir   : 3;
  13:     uint  underOffset    : 4;
  14:     uint  start      : 1;
  15:     uint  target     : 1;
  16:     uint  owner      : 6;
  17:     uint  segment    : 7;
  18:     uint  intrinsicCost  : 3;
  19: };
  20: 
  21: main()
  22: {
  23:     struct dot junk;
  24: 
  25:     junk.owner = 63;
  26:     junk.segment = 1;
  27:     junk.intrinsicCost = 1;
  28: 
  29:     printf("owner = %d, segment = %d, intrinsicCost = %d\n",
  30:     junk.owner, junk.segment, junk.intrinsicCost);
  31:     printf("done\n");
  32:     oldmain();
  33: }
  34: 
  35: oldmain()
  36: {
  37:     struct {
  38:     int first;
  39:     int second;
  40:     int a : 8;
  41:     int b : 8;
  42:     int c;
  43:     } x;
  44: 
  45:     x.first = 0;
  46:     x.second = 0;
  47:     x.a = 2;
  48:     x.b = 10;
  49:     x.c = 1;
  50: }

Defined functions

Defined struct's

Defined typedef's