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 "cln/ring.h"
  10
  11
  12 // Implementation.
  13
  14 #include "cln/io.h"
  15 #include "cln/abort.h"
  16
  17 namespace cln {
  18
  19 nonreturning_function(static, uninitialized_ring, (void));
  20 static void uninitialized_ring ()
  21 {
  22         fprint(std::cerr, "Uninitialized ring operation called\n");
  23         cl_abort();
  24 }
  25
  26 nonreturning_function(static, uninitialized_error, (const _cl_ring_element&));
  27 static void uninitialized_error (const _cl_ring_element& obj)
  28 {
  29         fprint(std::cerr, "Uninitialized ring element @0x");
  30         fprinthexadecimal(std::cerr, (unsigned long)(void*)&obj);
  31         fprint(std::cerr, ": 0x");
  32         fprinthexadecimal(std::cerr, (unsigned long)obj.rep.word);
  33         fprint(std::cerr, "\n");
  34         cl_abort();
  35 }
  36
  37 #if (defined(__sparc__) && !defined(__GNUC__))
  38   // avoid Sun C++ 4.1 compiler bug
  39   #define RETDUMMY  return *(_cl_ring_element*)R
  40 #else
  41   #define RETDUMMY  return *(_cl_ring_element*)0
  42 #endif
  43
  44 static const _cl_ring_element dummy_op0 (cl_heap_ring* R)
  45 {
  46         unused R;
  47         uninitialized_ring(); RETDUMMY;
  48 }
  49
  50 static const _cl_ring_element dummy_op1 (cl_heap_ring* R, const _cl_ring_element& x)
  51 {
  52         unused R;
  53         uninitialized_error(x); RETDUMMY;
  54 }
  55
  56 static const _cl_ring_element dummy_op2 (cl_heap_ring* R, const _cl_ring_element& x, const _cl_ring_element& y)
  57 {
  58         unused R;
  59         uninitialized_error(x); uninitialized_error(y); RETDUMMY;
  60 }
  61
  62 static void dummy_fprint (cl_heap_ring* R, cl_ostream stream, const _cl_ring_element& x)
  63 {
  64         unused R;
  65         unused stream;
  66         uninitialized_error(x);
  67 }
  68 static cl_boolean dummy_equal (cl_heap_ring* R, const _cl_ring_element& x, const _cl_ring_element& y)
  69 {
  70         unused R;
  71         uninitialized_error(x); uninitialized_error(y); return cl_false;
  72 }
  73
  74 #define dummy_zero dummy_op0
  75 static cl_boolean dummy_zerop (cl_heap_ring* R, const _cl_ring_element& x)
  76 {
  77         unused R;
  78         uninitialized_error(x); return cl_false;
  79 }
  80 #define dummy_plus dummy_op2
  81 #define dummy_minus dummy_op2
  82 #define dummy_uminus dummy_op1
  83
  84 #define dummy_one dummy_op0
  85 static const _cl_ring_element dummy_canonhom (cl_heap_ring* R, const cl_I& x)
  86 {
  87         unused R;
  88         (void)&x; // unused x;
  89         uninitialized_ring(); RETDUMMY;
  90 }
  91 #define dummy_mul dummy_op2
  92 #define dummy_square dummy_op1
  93 static const _cl_ring_element dummy_expt_pos (cl_heap_ring* R, const _cl_ring_element& x, const cl_I& y)
  94 {
  95         unused R;
  96         (void)&y; // unused y;
  97         uninitialized_error(x); RETDUMMY;
  98 }
  99
 100 static cl_ring_setops dummy_setops = {
 101         dummy_fprint,
 102         dummy_equal
 103 };
 104 static cl_ring_addops dummy_addops = {
 105         dummy_zero,
 106         dummy_zerop,
 107         dummy_plus,
 108         dummy_minus,
 109         dummy_uminus
 110 };
 111 static cl_ring_mulops dummy_mulops = {
 112         dummy_one,
 113         dummy_canonhom,
 114         dummy_mul,
 115         dummy_square,
 116         dummy_expt_pos
 117 };
 118
 119 class cl_heap_no_ring : public cl_heap_ring {
 120         SUBCLASS_cl_heap_ring()
 121 public:
 122         // Constructor.
 123         cl_heap_no_ring ()
 124                 : cl_heap_ring (&dummy_setops,&dummy_addops,&dummy_mulops)
 125                 { type = &cl_class_no_ring; }
 126         // Destructor.
 127         ~cl_heap_no_ring () {}
 128 };
 129
 130 static void cl_no_ring_destructor (cl_heap* pointer)
 131 {
 132         (*(cl_heap_no_ring*)pointer).~cl_heap_no_ring();
 133 }
 134
 135 static void cl_no_ring_dprint (cl_heap* pointer)
 136 {
 137         unused pointer;
 138         fprint(cl_debugout, "(cl_ring) cl_no_ring");
 139 }
 140
 141 cl_class cl_class_no_ring = {
 142         cl_no_ring_destructor,
 143         0,
 144         cl_no_ring_dprint
 145 };
 146
 147 const cl_ring cl_no_ring = cl_ring (new cl_heap_no_ring());
 148
 149 }  // namespace cln
 150
 151 CL_PROVIDE_END(cl_no_ring)