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