diff -r a9da6c5d3f7c -r 206903ba35a5 MYErrorUtils.h
--- a/MYErrorUtils.h	Sat Apr 04 20:53:53 2009 -0700
+++ b/MYErrorUtils.h	Tue May 05 11:09:06 2009 -0700
@@ -24,6 +24,13 @@
 NSError *MYError( int errorCode, NSString *domain, NSString *messageFormat, ... ) 
                                 __attribute__ ((format (__NSString__, 3, 4)));
 
+/** A variant of MYError, useful for returning from a method.
+    If errorCode is nonzero, constructs an NSError and stores it into *outError,
+    then returns NO. Otherwise returns YES. */
+BOOL MYReturnError( NSError **outError,
+                    int errorCode, NSString *domain, NSString *messageFormat, ... ) 
+                                __attribute__ ((format (__NSString__, 4, 5)));
+
 /** Convenience function for creating NSErrors.
     Stores an NSError into *error, and returns NO.
     Domain will be MYErrorDomain, code will be kMYErrorMisc.