src/float/dfloat/misc/cl_DF_as.cc

   1 // cl_DF_As().
   2
   3 // General includes.
   4 #include "base/cl_sysdep.h"
   5
   6 // Specification.
   7 #include "cln/dfloat.h"
   8
   9
  10 // Implementation.
  11
  12 #include "base/cl_N.h"
  13
  14 namespace cln {
  15
  16 inline bool cl_DF_p (const cl_number& x)
  17 {
  18         if (x.pointer_p())
  19                 if (x.heappointer->type == &cl_class_dfloat)
  20                         return true;
  21         return false;
  22 }
  23
  24 const cl_DF& cl_DF_As (const cl_number& x, const char * filename, int line)
  25 {
  26         if (cl_DF_p(x)) {
  27                 DeclareType(cl_DF,x);
  28                 return x;
  29         } else
  30                 throw as_exception(x,"a double-float number",filename,line);
  31 }
  32
  33 }  // namespace cln