r18523 - gnucash/trunk/src/engine - Add a comment about GNC_COMMODITY_NS_ISO and

[Mike Alexander]

Author: mta
Date: 2009-12-17 03:03:23 -0500 (Thu, 17 Dec 2009)
New Revision: 18523
Trac: http://svn.gnucash.org/trac/changeset/18523

Modified:
   gnucash/trunk/src/engine/gnc-commodity.c
Log:
Add a comment about GNC_COMMODITY_NS_ISO and 
GNC_COMMODITY_NS_CURRENCY.

Modified: gnucash/trunk/src/engine/gnc-commodity.c
===================================================================
--- gnucash/trunk/src/engine/gnc-commodity.c	2009-12-17 07:56:49 UTC (rev 18522)
+++ gnucash/trunk/src/engine/gnc-commodity.c	2009-12-17 08:03:23 UTC (rev 18523)
@@ -1912,6 +1912,12 @@
   return table->ns_list;
 }
 
+/* Because gnc_commodity_table_add_namespace maps GNC_COMMODITY_NS_ISO to
+   GNC_COMMODITY_NS_CURRENCY and then sets iso4217 if the namespace is
+   either of these, the net result is that the iso4217 bit is set only
+   for GNC_COMMODITY_NS_CURRENCY.  This means that gnc_commodity_is_iso is
+   a subset of gnc_commodity_is_currency.  Most callers seem to use 
+   gnc_commodity_is_iso. */
 gboolean
 gnc_commodity_is_iso(const gnc_commodity * cm)
 {