From 95c4b6e1450bc47cc1e086e8f243121eb613a577 Mon Sep 17 00:00:00 2001
From: kdeng00 <kundeng94@gmail.com>
Date: Tue, 22 Sep 2020 21:16:11 -0400
Subject: [PATCH] Left off on 2.4 Declarations. At some point work on the
 octal/hex converters

---
 ch_02/hex_and_octal_constants/main_template.c | 49 +++++++++++++++++++
 ch_02/hex_converter/main_template.c           | 10 ++++
 ch_02/octal_converter/main_template.c         | 10 ++++
 3 files changed, 69 insertions(+)
 create mode 100644 ch_02/hex_and_octal_constants/main_template.c
 create mode 100644 ch_02/hex_converter/main_template.c
 create mode 100644 ch_02/octal_converter/main_template.c

diff --git a/ch_02/hex_and_octal_constants/main_template.c b/ch_02/hex_and_octal_constants/main_template.c
new file mode 100644
index 0000000..a196377
--- /dev/null
+++ b/ch_02/hex_and_octal_constants/main_template.c
@@ -0,0 +1,49 @@
+/*
+ *
+ * Quickly demonstrating octal and hex contstants
+ *
+ * Note: Octal and Hex values are read right to left.
+ *
+ * Author: Kun Deng
+ */
+
+
+
+#include <stdio.h>
+
+
+int main()
+{
+    int some_value = 25;
+    // To get the octal value. Follow these steps
+    // 1. Divide the value 25 by 8
+    // 2. The quotient is 3 and the remainder is 1
+    // 3. 1 would be the first octal value
+    // 4. Take the quotient and divide that by 8
+    // 5. The quotient of that is 0 and the remainder is 3. Making the second octal value 3
+    // 6. The result is 031
+    int some_value_octal = 031;
+    // To get the Hex value. Follow these steps
+    // 1. Divide the value 25 by 16.
+    // 2. The quotient is 1 and the remainder is 9
+    // 3. The first hex value is 9
+    // 4. Divide by the quotient 1 and divide by 16. The remainder is 1
+    // 5. The second hex value is 1. 
+    // 6. The result is 0x19
+    int some_value_hex = 0x19;
+
+    if (some_value == some_value_octal)
+    {
+        printf("%10s%10s\n", "Decimal", "Octal");
+        printf("%10d%10d\n", some_value, some_value_octal);
+    }
+
+    if (some_value == some_value_hex)
+    {
+        printf("%10s%10s\n", "Decimal", "Hex");
+        printf("%10d%10d\n", some_value, some_value_hex);
+    }
+
+
+    return 0;
+}
diff --git a/ch_02/hex_converter/main_template.c b/ch_02/hex_converter/main_template.c
new file mode 100644
index 0000000..d432873
--- /dev/null
+++ b/ch_02/hex_converter/main_template.c
@@ -0,0 +1,10 @@
+/*
+ *
+ * Write a program that can convert a decimal to a hex value and vice-versa.
+ * The program must pass a command line argument to determine what will
+ * be the conversion type and the value to be converted. The value
+ * must be evaluated to make sure it's valid before converting.
+ * Otherwise, inform the user and terminate the program
+ *
+ * Author: Kun Deng
+ */
diff --git a/ch_02/octal_converter/main_template.c b/ch_02/octal_converter/main_template.c
new file mode 100644
index 0000000..d432873
--- /dev/null
+++ b/ch_02/octal_converter/main_template.c
@@ -0,0 +1,10 @@
+/*
+ *
+ * Write a program that can convert a decimal to a hex value and vice-versa.
+ * The program must pass a command line argument to determine what will
+ * be the conversion type and the value to be converted. The value
+ * must be evaluated to make sure it's valid before converting.
+ * Otherwise, inform the user and terminate the program
+ *
+ * Author: Kun Deng
+ */