From 986e3aa56c96097bb6993e48859ea6540e9ad7cc Mon Sep 17 00:00:00 2001
From: Michael Abed <michaelabed@gmail.com>
Date: Sun, 12 Feb 2012 15:20:36 -0500
Subject: Comment things and add headings

---
 Q2.cpp | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

(limited to 'Q2.cpp')

diff --git a/Q2.cpp b/Q2.cpp
index 255b7f8..20e8d4a 100644
--- a/Q2.cpp
+++ b/Q2.cpp
@@ -1,3 +1,10 @@
+/*
+ * Michael Abed <mgabed@bu.edu>
+ *
+ * Lab 1 Problem 2
+ *
+ * Convert units between pints, liters, and cups
+ */
 
 #include <iostream>
 
@@ -5,6 +12,8 @@ using namespace std;
 
 int main()
 {
+    // the order here corresponds to the number that gets entered by the user
+    // it's just what needs to be multiplied by to get the corresonding unit
     double conversion[10] = {0.47317, 2, 0.5, 0.23659, 2.1134, 4.2268};
     unsigned short sel;
     double amount;
@@ -16,15 +25,15 @@ int main()
     cout << "Liters to Pints (enter 4)" << endl;
     cout << "Liters to Cups (enter 5)" << endl;
 
-    do {
+    do { // figure out operation
         cout << "?: ";
         cin >> sel;
         if (sel > 5)
             cout << "Enter a number between 0 and 5" << endl;
     } while (sel > 5);
 
-    do {
-        switch (sel) {
+    do { // validate input
+        switch (sel) { // decide how to prompt
             case 0: // fallthrough
             case 1:
                 cout << "Enter the amount in Pints: ";
@@ -44,7 +53,8 @@ int main()
     } while (amount < 0);
 
     double result = conversion[sel] * amount;
-    switch (sel) {
+
+    switch (sel) { // show the output
         case 0:
             cout << amount << " Pints is " << result << " Liters" << endl;
             break;
-- 
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