src/vector/cl_GV_number.cc

   1 // cl_make_heap_GV_number().
   2
   3 // General includes.
   4 #include "cl_sysdep.h"
   5
   6 CL_PROVIDE(cl_GV_number)
   7
   8 // Specification.
   9 #include "cln/GV_number.h"
  10
  11
  12 // Implementation.
  13
  14 #include "cln/abort.h"
  15 #include "cl_offsetof.h"
  16
  17 namespace cln {
  18
  19 static void cl_gvector_number_destructor (cl_heap* pointer)
  20 {
  21 #if (defined(__mips__) || defined(__mips64__)) && !defined(__GNUC__) // workaround SGI CC bug
  22         (*(cl_heap_GV_number*)pointer).~cl_heap_GV();
  23 #else
  24         (*(cl_heap_GV_number*)pointer).~cl_heap_GV_number();
  25 #endif
  26 }
  27
  28 cl_class cl_class_gvector_number = {
  29         cl_gvector_number_destructor,
  30         0
  31 };
  32
  33
  34 static inline cl_heap_GV_number * outcast (cl_GV_inner<cl_number>* vec)
  35 {
  36         return (cl_heap_GV_number *)((char *) vec - offsetof(cl_heap_GV_number,v));
  37 }
  38 static inline const cl_heap_GV_number * outcast (const cl_GV_inner<cl_number>* vec)
  39 {
  40         return (const cl_heap_GV_number *)((const char *) vec - offsetof(cl_heap_GV_number,v));
  41 }
  42
  43
  44 // Vectors of numbers.
  45
  46 struct cl_heap_GV_number_general : public cl_heap_GV_number {
  47         cl_number data[1];
  48         // Standard allocation disabled.
  49         void* operator new (size_t size) { unused size; cl_abort(); return (void*)1; }
  50         // Standard deallocation disabled.
  51         void operator delete (void* ptr) { unused ptr; cl_abort(); }
  52         // No default constructor.
  53         cl_heap_GV_number_general ();
  54 };
  55
  56 static const cl_number general_element (const cl_GV_inner<cl_number>* vec, uintL index)
  57 {
  58         return ((const cl_heap_GV_number_general *) outcast(vec))->data[index];
  59 }
  60
  61 static void general_set_element (cl_GV_inner<cl_number>* vec, uintL index, const cl_number& x)
  62 {
  63         ((cl_heap_GV_number_general *) outcast(vec))->data[index] = x;
  64 }
  65
  66 static void general_do_delete (cl_GV_inner<cl_number>* vec)
  67 {
  68         var cl_heap_GV_number_general* hv = (cl_heap_GV_number_general *) outcast(vec);
  69         var uintL len = hv->v.length();
  70         for (var uintL i = 0; i < len; i++)
  71                 hv->data[i].~cl_number();
  72 }
  73
  74 static void general_copy_elements (const cl_GV_inner<cl_number>* srcvec, uintL srcindex, cl_GV_inner<cl_number>* destvec, uintL destindex, uintL count)
  75 {
  76         if (count > 0) {
  77                 var const cl_heap_GV_number_general* srcv =
  78                   (const cl_heap_GV_number_general *) outcast(srcvec);
  79                 var cl_heap_GV_number_general* destv =
  80                   (cl_heap_GV_number_general *) outcast(destvec);
  81                 var uintL srclen = srcv->v.length();
  82                 var uintL destlen = destv->v.length();
  83                 if (!(srcindex <= srcindex+count && srcindex+count <= srclen))
  84                         cl_abort();
  85                 if (!(destindex <= destindex+count && destindex+count <= destlen))
  86                         cl_abort();
  87                 do {
  88                         destv->data[destindex++] = srcv->data[srcindex++];
  89                 } while (--count > 0);
  90         }
  91 }
  92
  93 static cl_GV_vectorops<cl_number> general_vectorops = {
  94         general_element,
  95         general_set_element,
  96         general_do_delete,
  97         general_copy_elements
  98 };
  99
 100 cl_heap_GV_number* cl_make_heap_GV_number (uintL len)
 101 {
 102         var cl_heap_GV_number_general* hv = (cl_heap_GV_number_general*) malloc_hook(offsetofa(cl_heap_GV_number_general,data)+sizeof(cl_number)*len);
 103         hv->refcount = 1;
 104         hv->type = &cl_class_gvector_number;
 105         new (&hv->v) cl_GV_inner<cl_number> (len,&general_vectorops);
 106         for (var uintL i = 0; i < len; i++)
 107                 init1(cl_number, hv->data[i]) ();
 108         return hv;
 109 }
 110
 111 // An empty vector.
 112 const cl_GV_number cl_null_GV_number = cl_GV_number((uintL)0);
 113
 114 }  // namespace cln
 115
 116 CL_PROVIDE_END(cl_GV_number)