More examples

1 files changed, 24 insertions, 1 deletions

diff --git a/doc/incr.n b/doc/incr.n
index 68f3114..6a2ecc3 100644
--- a/doc/incr.n
+++ b/doc/incr.n
@@ -5,7 +5,7 @@
 '\" See the file "license.terms" for information on usage and redistribution
 '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 '\" 
-'\" RCS: @(#) $Id: incr.n,v 1.3 2000/09/07 14:27:48 poenitz Exp $
+'\" RCS: @(#) $Id: incr.n,v 1.4 2004/04/30 22:45:56 dkf Exp $
 '\" 
 .so man.macros
 .TH incr n "" Tcl "Tcl Built-In Commands"
@@ -26,6 +26,29 @@ integer) is added to the value of variable \fIvarName\fR;  otherwise
 1 is added to \fIvarName\fR.
 The new value is stored as a decimal string in variable \fIvarName\fR
 and also returned as result.
+.SH EXAMPLES
+Add one to the contents of the variable \fIx\fR:
+.CS
+incr x
+.CE
+
+Add 42 to the contents of the variable \fIx\fR:
+.CS
+incr x 42
+.CE
+
+Add the contents of the variable \fIy\fR to the contents of the
+variable \fIx\fR:
+.CS
+incr x $y
+.CE
+
+Add nothing at all to the variable \fIx\fR (often useful for checking
+whether an argument to a procedure is actually numeric and generating
+an error if it is not):
+.CS
+incr x 0
+.CE
 
 .SH "SEE ALSO"
 expr(n)