diff options
Diffstat (limited to 'src/util/rational_cln_imp.h')
-rw-r--r-- | src/util/rational_cln_imp.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/util/rational_cln_imp.h b/src/util/rational_cln_imp.h index da2af6c1f..b144ab419 100644 --- a/src/util/rational_cln_imp.h +++ b/src/util/rational_cln_imp.h @@ -38,6 +38,11 @@ namespace CVC4 { +class CVC4_PUBLIC RationalFromDoubleException : public Exception { +public: + RationalFromDoubleException(double d) throw(); +}; + /** ** A multi-precision rational constant. ** This stores the rational as a pair of multi-precision integers, @@ -189,12 +194,7 @@ public: } /** Return an exact rational for a double d. */ - static Rational fromDouble(double d){ - cln::cl_DF fromD = d; - Rational q; - q.d_value = cln::rationalize(fromD); - return q; - } + static Rational fromDouble(double d) throw(RationalFromDoubleException); /** * Get a double representation of this Rational, which is @@ -259,6 +259,10 @@ public: return Integer(cln::ceiling1(d_value)); } + Rational floor_frac() const { + return (*this) - Rational(floor()); + } + Rational& operator=(const Rational& x){ if(this == &x) return *this; d_value = x.d_value; @@ -349,6 +353,9 @@ public: return getNumerator().length() + getDenominator().length(); } + /** Equivalent to calling (this->abs()).cmp(b.abs()) */ + int absCmp(const Rational& q) const; + };/* class Rational */ struct RationalHashFunction { |