Added in_place_round method to all Ledger numerical types.

1 files changed, 17 insertions, 17 deletions

diff --git a/src/amount.cc b/src/amount.cc
index d3265bc0..8d433ad4 100644
--- a/src/amount.cc
+++ b/src/amount.cc
@@ -571,40 +571,40 @@ amount_t& amount_t::in_place_negate()
   return *this;
 }
 
-amount_t amount_t::round() const
+amount_t& amount_t::in_place_round()
 {
   if (! quantity)
     throw_(amount_error, "Cannot round an uninitialized amount");
 
-  if (! has_commodity())
-    return *this;
+  if (has_commodity())
+    in_place_round(commodity().precision());
 
-  return round(commodity().precision());
+  return *this;
 }
 
-amount_t amount_t::round(precision_t prec) const
+amount_t& amount_t::in_place_round(precision_t prec)
 {
   if (! quantity)
     throw_(amount_error, "Cannot round an uninitialized amount");
 
-  amount_t t(*this);
-
-  if (quantity->prec <= prec) {
-    if (quantity && quantity->has_flags(BIGINT_KEEP_PREC)) {
-      t._dup();
-      t.quantity->drop_flags(BIGINT_KEEP_PREC);
+  if (quantity && quantity->prec <= prec) {
+    if (quantity->has_flags(BIGINT_KEEP_PREC)) {
+      _dup();
+      quantity->drop_flags(BIGINT_KEEP_PREC);
     }
-    return t;
+    return *this;
   }
 
-  t._dup();
+  DEBUG("amount.round", "Rounding " << *this << " to precision " << prec);
 
-  mpz_round(MPZ(t.quantity), MPZ(t.quantity), t.quantity->prec, prec);
+  mpz_round(MPZ(quantity), MPZ(quantity), quantity->prec, prec);
 
-  t.quantity->prec = prec;
-  t.quantity->drop_flags(BIGINT_KEEP_PREC);
+  quantity->prec = prec;
+  quantity->drop_flags(BIGINT_KEEP_PREC);
 
-  return t;
+  DEBUG("amount.round", "  result = " << *this);
+
+  return *this;
 }
 
 amount_t amount_t::unround() const