From 4e1f963b0f9bafe0cc0b60d6772a73699d372d04 Mon Sep 17 00:00:00 2001
From: "Jason L. Wright" <jason@thought.net>
Date: Fri, 13 Oct 2023 20:23:29 -0600
Subject: [PATCH] pass by reference isn't discussed until cha8

---
 book/cha7.tex | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/book/cha7.tex b/book/cha7.tex
index 735c356..bfe44ad 100644
--- a/book/cha7.tex
+++ b/book/cha7.tex
@@ -549,9 +549,8 @@ \section{Character classification}
 As an exercise, use the character classification and conversion
 library to write functions named {\tt stringToUpper} and
 {\tt stringToLower} that take a single {\tt string} as
-a parameter, and that modify the string by converting all the
-letters to upper or lower case.  The return type should be
-{\tt void}.
+a parameter, and return a string with all the characters converted to
+upper or lower case. The return type should be {\tt string}.
 
 \section{Other {\tt string} functions}