src/rational/misc/cl_RA_eqhashcode.cc

   1 // cl_RA equal_hashcode().
   2
   3 // General includes.
   4 #include "base/cl_sysdep.h"
   5
   6 // Specification.
   7 #include "cln/rational.h"
   8
   9
  10 // Implementation.
  11
  12 #include "base/cl_N.h"
  13 #include "rational/cl_RA.h"
  14 #include "base/cl_inline.h"
  15 #include "integer/misc/cl_I_eqhashcode.cc"
  16
  17 namespace cln {
  18
  19 CL_INLINE2 uint32 CL_INLINE2_DECL(equal_hashcode) (const cl_RA& r)
  20 {
  21         if (integerp(r)) {
  22                 DeclareType(cl_I,r);
  23                 return equal_hashcode_inline(r);
  24         } else {
  25                 // Making sure that a float and its rational equivalent have
  26                 // the same hash code is tricky. This code depends on the fact
  27                 // that the equal_hashcode_low macro is linear in `exp'.
  28                 DeclareType(cl_RT,r);
  29                 return equal_hashcode_inline(numerator(r))
  30                        - equal_hashcode_inline(denominator(r))
  31                        + equal_hashcode_one;
  32         }
  33 }
  34
  35 }  // namespace cln