1 files changed, 12 insertions, 2 deletions
diff --git a/src/util/rational_cln_imp.h b/src/util/rational_cln_imp.h
index 583983829..ea9f7d055 100644
--- a/src/util/rational_cln_imp.h
+++ b/src/util/rational_cln_imp.h
@@ -69,7 +69,8 @@ private:
 
 public:
 
-  /** Creates a rational from a decimal string (e.g., <code>"1.5"</code>).
+  /**
+   * Creates a rational from a decimal string (e.g., <code>"1.5"</code>).
    *
    * @param dec a string encoding a decimal number in the format
    * <code>[0-9]*\.[0-9]*</code>
@@ -166,10 +167,19 @@ public:
    * Returns the value of denominator of the Rational.
    * Note that this makes a deep copy of the denominator.
    */
-  Integer getDenominator() const{
+  Integer getDenominator() const {
     return Integer(cln::denominator(d_value));
   }
 
+  /**
+   * Get a double representation of this Rational, which is
+   * approximate: truncation may occur, overflow may result in
+   * infinity, and underflow may result in zero.
+   */
+  double getDouble() const {
+    return cln::double_approx(d_value);
+  }
+
   Rational inverse() const {
     return Rational(cln::recip(d_value));
   }