/cln-1.3.2/src/rational/elem/cl_RA_plus1.cc
C++ | 33 lines | 18 code | 8 blank | 7 comment | 2 complexity | 69afa23d0cab61fd65fb4fe607d6538c MD5 | raw file
Possible License(s): GPL-2.0
- // plus1().
- // General includes.
- #include "base/cl_sysdep.h"
- // Specification.
- #include "cln/rational.h"
- // Implementation.
- #include "rational/cl_RA.h"
- #include "cln/integer.h"
- namespace cln {
- const cl_RA plus1 (const cl_RA& r)
- {
- // Methode:
- // Falls r ein Integer ist: I_1_plus_I anwenden
- // Falls r = a/b: (a+b)/b, wobei b>1 und ggT(a+b,b)=ggT(a,b)=1 ist.
- if (integerp(r)) {
- DeclareType(cl_I,r);
- return plus1(r);
- } else {
- DeclareType(cl_RT,r);
- var const cl_I& a = numerator(r);
- var const cl_I& b = denominator(r);
- return I_I_to_RT(a+b,b);
- }
- }
- } // namespace cln