Index: trunk/doc/pslib/psLibSDRS.tex
===================================================================
--- trunk/doc/pslib/psLibSDRS.tex	(revision 6829)
+++ trunk/doc/pslib/psLibSDRS.tex	(revision 7129)
@@ -1,3 +1,3 @@
-%%% $Id: psLibSDRS.tex,v 1.391 2006-04-11 21:24:07 eugene Exp $
+%%% $Id: psLibSDRS.tex,v 1.392 2006-05-17 22:33:01 jhoblitt Exp $
 \documentclass[panstarrs,spec]{panstarrs}
 
@@ -891,7 +891,8 @@
 \end{prototype}
 
-\code{psStringCopy} shall perform a deep copy of the \code{string}
-into \code{psAlloc}-ed memory.  \code{psStringNCopy} shall do the
-same, up to a maximum of \code{nChar} characters.
+\code{psStringCopy} shall perform a deep copy of the \code{string} into
+\code{psAlloc}-ed memory.  \code{psStringNCopy} shall do the same, up to a
+maximum of \code{nChar} characters.  Both copy functions shall ``pass through''
+\code{NULL} values without generating an error.
 
 We also specify two useful functions: