From bf6752edd6a7e75673a979a2240ff5eb136a13c1 Mon Sep 17 00:00:00 2001
From: Dan Buch <daniel.buch@gmail.com>
Date: Mon, 19 Sep 2011 23:05:31 -0400
Subject: [PATCH] using separate funcs for each way of looping/printing

---
 ex15.c | 46 +++++++++++++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 9 deletions(-)

diff --git a/ex15.c b/ex15.c
index d3f8626..52eea30 100644
--- a/ex15.c
+++ b/ex15.c
@@ -1,15 +1,7 @@
 #include <stdio.h>
 
-int main(int argc, char *argv[])
+void print_with_array_indexing(int count, char *names[], int ages[])
 {
-    // create two arrays we care about
-    int ages[] = {23, 43, 12, 89, 2};
-    char *names[] = {
-        "Alan", "Frank",
-        "Mary", "John", "Lisa"
-    };
-    // safely get the size of ages
-    int count = sizeof(ages) / sizeof(int);
     int i = 0;
 
     // first way using indexing
@@ -19,7 +11,11 @@ int main(int argc, char *argv[])
     }
 
     printf("---\n");
+}
 
+void print_with_pointer_arithmetic(int count, char *names[], int ages[])
+{
+    int i;
     // setup the pointers to the start of the arrays
     int *cur_age = ages;
     char **cur_name = names;
@@ -31,7 +27,13 @@ int main(int argc, char *argv[])
     }
 
     printf("---\n");
+}
 
+void print_with_pointers_as_arrays(int count, char *names[], int ages[])
+{
+    int i;
+    int *cur_age = ages;
+    char **cur_name = names;
     // third way, pointers are just arrays
     for(i = 0; i < count; i++) {
         printf("%s is %d years old again.\n",
@@ -40,6 +42,13 @@ int main(int argc, char *argv[])
 
     printf("---\n");
 
+}
+
+void print_in_stupidly_complex_way(int count, char *names[], int ages[])
+{
+    int *cur_age = ages;
+    char **cur_name = names;
+
     // fourth way with pointers in a stupid complex way
     for(cur_name = names, cur_age = ages;
             (cur_age - ages) < count;
@@ -50,7 +59,26 @@ int main(int argc, char *argv[])
     }
 
     printf("---\n");
+}
+
+
+int main(int argc, char *argv[])
+{
+    // create two arrays we care about
+    int ages[] = {23, 43, 12, 89, 2};
+    char *names[] = {
+        "Alan", "Frank",
+        "Mary", "John", "Lisa"
+    };
+    // safely get the size of ages
+    int count = sizeof(ages) / sizeof(int);
+
+    print_with_array_indexing(count, names, ages);
+    print_with_pointer_arithmetic(count, names, ages);
+    print_with_pointers_as_arrays(count, names, ages);
+    print_in_stupidly_complex_way(count, names, ages);
 
+    int i;
     char **arg = argv;
     for(i = 0; i < argc; i++) {
         printf("argument %d is '%s' (address = %p)\n", i, *arg, arg);