Thread: Why do the enum values this way??

  1. #1
    Registered User
    Join Date
    May 2010
    Posts
    269

    Why do the enum values this way??

    Code:
    enum tx_op {
            P_TX = 1,
            PU_TX = 1 + 1,
            RT_TX = 1 + 2,
            GET_TX = 1 + 3,
            PUT_TX = 1 + 4,
    };
    What's the purpose of the 1+1, 1+2, etc.. why not just do 2,3,4......??

  2. #2
    C++ Witch laserlight's Avatar
    Join Date
    Oct 2003
    Location
    Singapore
    Posts
    28,413
    Yeah, it looks like cruft. It could have been written as:
    Code:
    enum tx_op {
        P_TX = 1,
        PU_TX,
        RT_TX,
        GET_TX,
        PUT_TX,
    };
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. enum values not working in #define?
    By MattJ812 in forum C++ Programming
    Replies: 22
    Last Post: 01-15-2011, 06:36 AM
  2. Assigning enum types to enum types?
    By see the big C in forum C Programming
    Replies: 10
    Last Post: 12-21-2010, 02:32 AM
  3. Printing values from Enum
    By Raskalnikov in forum C Programming
    Replies: 8
    Last Post: 02-16-2009, 10:28 PM
  4. How to pass enum values
    By Bargi in forum C++ Programming
    Replies: 1
    Last Post: 09-29-2007, 02:55 AM
  5. different values in while using enum?
    By blackgold>> in forum C++ Programming
    Replies: 1
    Last Post: 04-26-2004, 03:35 PM