From c3b78148d62c4818380d53ea46d02fdc47f7667a Mon Sep 17 00:00:00 2001
From: Steven Schronk <steven@schronk.com>
Date: Wed, 23 Dec 2009 13:35:36 -0600
Subject: [PATCH] Added function to example 5-5 named strncmp.  Compares
 contents of string s1 with contents of s2.

---
 ex_5-5.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/ex_5-5.c b/ex_5-5.c
index 7c84cef..69fff20 100644
--- a/ex_5-5.c
+++ b/ex_5-5.c
@@ -46,6 +46,29 @@ char *ss_strncat(char *dest, const char *source, size_t n)
         return dest;
 }
 
+/*
+       
+Compares contents of string s1 with contents of s2.
+
+If s1 < s2 returns < 0
+If s1 == s2 returns 0
+If s1 > s2 returns > 0
+
+*/
+int ss_strncmp(const char *s1, const char *s2, size_t n)
+{
+
+        while(--n >= 0 && *s1 != '\0' && *s2 != '\0')
+        {
+
+                if(*s1++ == *s2++) { continue; }
+                if(*s1 > *s2)
+                        return 1;
+                else
+                        return -1;
+        }
+        return 0;
+}
 
 int main()
 {
@@ -82,5 +105,20 @@ int main()
                 print_array(buffer);
         }
 
+        printf("\n");
+
+        char smaller[] = { "12345" };
+        char bigger[] = { "67890" };
+        int size_ans;
+
+        size_ans = ss_strncmp(smaller, bigger, 3);
+        printf("%d\n", size_ans);
+
+        size_ans = ss_strncmp(bigger, bigger, 3);
+        printf("%d\n", size_ans);
+
+        size_ans = ss_strncmp(bigger, smaller, 3);
+        printf("%d\n", size_ans);
+
 	return 1;
 }
-- 
2.11.4.GIT