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POI cannot seem to get Visual C++ Express (2010) to recognize enum class
 

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    <p>Hi guys (and girls), I am working to re-familiarize myself with C++ after using only Python for too long. I have written a small program with MS Visual C++ 2010 Express edition and I have looked all over the place for a culprit for why the compiler doesn't seem to like my usage of enum class Choice. The compiler complains that a namespace with this name does not exist. Now, I should say that all previous C/C++ code I have written was in an academic setting thus I was using the full IDE. Anyway, I am appending the code below and please forgive me if this is the incorrect method on which to post it. If it is please refer me to the correct method and I will employ it henceforth. Thank you, in advance, for any help or insight anyone might be able to lend. The code is as follows. </p> <pre><code>#include"stdafx.h" #include&lt;iostream&gt; #include&lt;string&gt; #include&lt;ctime&gt; using namespace std; enum class Choice { rock, paper, scissors }; using namespace Choice;** Choice player_choice; //holds user's move Choice machine_choice; //holds machine's move string words[3] = {"rock","paper","scissors"}; Choice get_machine_choice(); void decide_winner(); string get_msg(Choice winner); int rand0toN1(int n); int main(int argc, char *argv[]) { srand(time(NULL)); //set randomization string input_str; int c; while (true) { cout &lt;&lt; "Enter Rock, Paper, Scissors, or Exit: "; getline(cin, input_str); if (input_str.size() &lt; 1) { cout &lt;&lt; "Sorry, I don't understand that.\n"; continue; } c = input_str[0]; if (c == 'R' || c == 'r') player_choice = rock; else if (c == 'P' || c == 'p') player_choice = paper; else if (c == 'S' || c == 's') player_choice = scissors; else if (c == 'E' || c == 'e') break; else { cout &lt;&lt; "Sorry, I don't understand that.\n"; continue; } machine_choice = get_machine_choice(); int p = (int) player_choice; int c = (int) machine_choice; cout &lt;&lt; "You Choose " &lt;&lt; words [p]; cout &lt;&lt; "," &lt;&lt; endl; cout &lt;&lt; "I choose " &lt;&lt; words [c]; cout &lt;&lt; "," &lt;&lt; endl; decide_winner(); } return EXIT_SUCCESS; } Choice get_machine_choice() { int n = rand0toN1(3); if (n == 0) return rock; if (n == 1) return paper; return scissors; } void decide_winner() { if (player_choice == machine_choice) { cout &lt;&lt; "Reult is a tie.\n\n"; return; } int p = static_cast&lt;int&gt;(player_choice); int c = static_cast&lt;int&gt;(machine_choice); if (p - c == 1 || p - c == -2) { cout &lt;&lt; get_msg(player_choice); cout &lt;&lt; "Unfortunantly, you win...\n"; } else { cout &lt;&lt; get_msg(machine_choice); cout &lt;&lt; "I WIN, BEEEATCH!!!!\n"; } cout &lt;&lt; endl; } string get_msg(Choice winner) { if (winner == rock) return string("Rock smashes scissors, beeatch..."); else if (winner == paper) return string("You know what paper does to rock, COVERAGE!!..."); else return string("CHOP! Scissors cut paper!!...."); } int rand0toN1(int n) { return rand() % n; } </code></pre> <p>Thank you again for taking the time to help me out. I seem to remember declaring classes quite often using C++ and cannot figure out why it will not recognize it. Thanks again for taking the time. Court (Clemson University, SC)</p>
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    1. CODrop Class from the enum. And drop the choice namespace line too - what is that trying to accomplish?
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    2. CO[This](http://stackoverflow.com/questions/2603314/forward-strong-enum-in-vs2010) may help. It appears that `enum class` isn't supported in VS2010.
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    3. COThank you for taking the time to read it. I'm not sure I understand what you mean. What is the class trying to accomplish?
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