Added the right-shift computation

Signed-off-by: Olivier Gayot <og@satcom1.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/number.h b/number.h
index 5043f1b..b1edbd6 100644
--- a/number.h
+++ b/number.h
@@ -63,6 +63,14 @@ public:
     number operator<<(std::uint32_t n) const;
 
     /**
+     * \brief Return a number equals to this number where n bits have been
+     * shifted to the right.
+     *
+     * \param n Number of bits to shift.
+     */
+    number operator>>(std::uint32_t) const;
+
+    /**
      * \brief Tell whether the number passed as parameter is strictly less than
      * this number.
      *
@@ -130,11 +138,26 @@ public:
     number &operator<<=(std::uint32_t);
 
     /**
+     * \brief Shift the number n bits to the right.
+     *
+     * \param n Number of bits to shift.
+     */
+    number &operator>>=(std::uint32_t);
+
+    /**
      * \brief Increment this number.
      */
     number &operator++();
 
 private:
+    /**
+     * \brief Remove unused leading 0 operands.
+     *
+     * Call this method after shrinking the number so that leading 0 operands
+     * are removed.
+     */
+    void shrink_to_fit();
+
      /* First item is the least significant. */
     std::list<std::uint32_t> _operands;
 };