src/base/ring/cl_no_ring.cc

   1 // Dummy ring.
   2
   3 // General includes.
   4 #include "cl_sysdep.h"
   5
   6 CL_PROVIDE(cl_no_ring)
   7
   8 // Specification.
   9 #include "cl_ring.h"
  10
  11
  12 // Implementation.
  13
  14 #include "cl_io.h"
  15 #include "cl_abort.h"
  16
  17 nonreturning_function(static, uninitialized_ring, (void));
  18 static void uninitialized_ring ()
  19 {
  20         fprint(cl_stderr, "Uninitialized ring operation called\n");
  21         cl_abort();
  22 }
  23
  24 nonreturning_function(static, uninitialized_error, (const _cl_ring_element&));
  25 static void uninitialized_error (const _cl_ring_element& obj)
  26 {
  27         fprint(cl_stderr, "Uninitialized ring element @0x");
  28         fprinthexadecimal(cl_stderr, (unsigned long)(void*)&obj);
  29         fprint(cl_stderr, ": 0x");
  30         fprinthexadecimal(cl_stderr, (unsigned long)obj.rep.word);
  31         fprint(cl_stderr, "\n");
  32         cl_abort();
  33 }
  34
  35 #if (defined(__sparc__) && !defined(__GNUC__))
  36   // avoid Sun C++ 4.1 compiler bug
  37   #define RETDUMMY  return *(_cl_ring_element*)R
  38 #else
  39   #define RETDUMMY  return *(_cl_ring_element*)0
  40 #endif
  41
  42 static const _cl_ring_element dummy_op0 (cl_heap_ring* R)
  43 {
  44         unused R;
  45         uninitialized_ring(); RETDUMMY;
  46 }
  47
  48 static const _cl_ring_element dummy_op1 (cl_heap_ring* R, const _cl_ring_element& x)
  49 {
  50         unused R;
  51         uninitialized_error(x); RETDUMMY;
  52 }
  53
  54 static const _cl_ring_element dummy_op2 (cl_heap_ring* R, const _cl_ring_element& x, const _cl_ring_element& y)
  55 {
  56         unused R;
  57         uninitialized_error(x); uninitialized_error(y); RETDUMMY;
  58 }
  59
  60 static void dummy_fprint (cl_heap_ring* R, cl_ostream stream, const _cl_ring_element& x)
  61 {
  62         unused R;
  63         unused stream;
  64         uninitialized_error(x);
  65 }
  66 static cl_boolean dummy_equal (cl_heap_ring* R, const _cl_ring_element& x, const _cl_ring_element& y)
  67 {
  68         unused R;
  69         uninitialized_error(x); uninitialized_error(y); return cl_false;
  70 }
  71
  72 #define dummy_zero dummy_op0
  73 static cl_boolean dummy_zerop (cl_heap_ring* R, const _cl_ring_element& x)
  74 {
  75         unused R;
  76         uninitialized_error(x); return cl_false;
  77 }
  78 #define dummy_plus dummy_op2
  79 #define dummy_minus dummy_op2
  80 #define dummy_uminus dummy_op1
  81
  82 #define dummy_one dummy_op0
  83 static const _cl_ring_element dummy_canonhom (cl_heap_ring* R, const cl_I& x)
  84 {
  85         unused R;
  86         (void)&x; // unused x;
  87         uninitialized_ring(); RETDUMMY;
  88 }
  89 #define dummy_mul dummy_op2
  90 #define dummy_square dummy_op1
  91 static const _cl_ring_element dummy_expt_pos (cl_heap_ring* R, const _cl_ring_element& x, const cl_I& y)
  92 {
  93         unused R;
  94         (void)&y; // unused y;
  95         uninitialized_error(x); RETDUMMY;
  96 }
  97
  98 static cl_ring_setops dummy_setops = {
  99         dummy_fprint,
 100         dummy_equal
 101 };
 102 static cl_ring_addops dummy_addops = {
 103         dummy_zero,
 104         dummy_zerop,
 105         dummy_plus,
 106         dummy_minus,
 107         dummy_uminus
 108 };
 109 static cl_ring_mulops dummy_mulops = {
 110         dummy_one,
 111         dummy_canonhom,
 112         dummy_mul,
 113         dummy_square,
 114         dummy_expt_pos
 115 };
 116
 117 class cl_heap_no_ring : public cl_heap_ring {
 118         SUBCLASS_cl_heap_ring()
 119 public:
 120         // Constructor.
 121         cl_heap_no_ring ()
 122                 : cl_heap_ring (&dummy_setops,&dummy_addops,&dummy_mulops)
 123                 { type = &cl_class_no_ring; }
 124         // Destructor.
 125         ~cl_heap_no_ring () {}
 126 };
 127
 128 static void cl_no_ring_destructor (cl_heap* pointer)
 129 {
 130         (*(cl_heap_no_ring*)pointer).~cl_heap_no_ring();
 131 }
 132
 133 static void cl_no_ring_dprint (cl_heap* pointer)
 134 {
 135         unused pointer;
 136         fprint(cl_debugout, "(cl_ring) cl_no_ring");
 137 }
 138
 139 cl_class cl_class_no_ring = {
 140         cl_no_ring_destructor,
 141         0,
 142         cl_no_ring_dprint
 143 };
 144
 145 const cl_ring cl_no_ring = cl_ring (new cl_heap_no_ring());
 146
 147 CL_PROVIDE_END(cl_no_ring)