From 6fde7ef2b3c8220f14e3f49ac300b92a6686a953 Mon Sep 17 00:00:00 2001
From: kdeng00 <kundeng94@outlook.com>
Date: Thu, 6 Oct 2022 19:23:43 -0400
Subject: [PATCH] Added exercise to work on

---
 ch_05/exercise_05-15/main.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 ch_05/exercise_05-15/main.c

diff --git a/ch_05/exercise_05-15/main.c b/ch_05/exercise_05-15/main.c
new file mode 100644
index 0000000..1c25d67
--- /dev/null
+++ b/ch_05/exercise_05-15/main.c
@@ -0,0 +1,16 @@
+/*
+ *
+ * Exercise 5-15. Add the option -f to fold upper and lower case together, so that case
+distinctions are not made during sorting; for example, a and A compare equal.
+ *
+ * Author: Kun Deng
+ */
+
+
+main(int argc, char **argv)
+{
+    auto i = 0;
+
+
+    return 0;
+}