Index: ext/bigdecimal/bigdecimal.c
===================================================================
--- ext/bigdecimal/bigdecimal.c	(Revision 48728)
+++ ext/bigdecimal/bigdecimal.c	(Arbeitskopie)
@@ -1595,7 +1595,7 @@
     }
 }
 
-/* Returns the absolute value.
+/* Returns the absolute value, as a BigDecimal.
  *
  * BigDecimal('5').abs -> 5
  *
@@ -1640,7 +1640,7 @@
     return ToValue(c);
 }
 
-/* Return the integer part of the number.
+/* Return the integer part of the number, as a BigDecimal.
  */
 static VALUE
 BigDecimal_fix(VALUE self)
@@ -1762,7 +1762,7 @@
     return ToValue(c);
 }
 
-/* Return the fractional part of the number.
+/* Return the fractional part of the number, as a BigDecimal.
  */
 static VALUE
 BigDecimal_frac(VALUE self)