src/complex/misc/cl_C_eqhashcode.cc

   1 // cl_N equal_hashcode().
   2
   3 // General includes.
   4 #include "cl_sysdep.h"
   5
   6 // Specification.
   7 #include "cl_complex.h"
   8
   9
  10 // Implementation.
  11
  12 #include "cl_N.h"
  13 #include "cl_C.h"
  14 #include "cl_real.h"
  15
  16 uint32 cl_equal_hashcode (const cl_N& x)
  17 {
  18         if (realp(x)) {
  19                 DeclareType(cl_R,x);
  20                 return cl_equal_hashcode(x);
  21         } else {
  22                 DeclareType(cl_C,x);
  23                 var const cl_R& a = realpart(x);
  24                 var const cl_R& b = imagpart(x);
  25                 var uint32 code1 = cl_equal_hashcode(a);
  26                 var uint32 code2 = cl_equal_hashcode(b);
  27                 // Wichtig beim Kombinieren, wegen "complex canonicalization":
  28                 // Ist imagpart=0.0, so ist der Hashcode = cl_equal_hashcode(a).
  29                 return code1 ^ ((code2 << 5) | (code2 >> 27));
  30         }
  31 }