src/float/dfloat/misc/cl_DF_as.cc

   1 // as_cl_DF().
   2
   3 // General includes.
   4 #include "cl_sysdep.h"
   5
   6 // Specification.
   7 #include "cl_dfloat.h"
   8
   9
  10 // Implementation.
  11
  12 #include "cl_N.h"
  13
  14 inline cl_boolean cl_DF_p (const cl_number& x)
  15 {
  16         if (x.pointer_p())
  17                 if (x.heappointer->type == &cl_class_dfloat)
  18                         return cl_true;
  19         return cl_false;
  20 }
  21
  22 const cl_DF& as_cl_DF (const cl_number& x, const char * filename, int line)
  23 {
  24         if (cl_DF_p(x)) {
  25                 DeclareType(cl_DF,x);
  26                 return x;
  27         } else
  28                 cl_as_error(x,"a double-float number",filename,line);
  29 }