Reverse a number

This is a discussion on Reverse a number within the C++ Programming forums, part of the General Programming Boards category; Hi I am unable to reverse the binary representation of a number is there an easy way to do it? ...

  1. #1
    Registered User
    Join Date
    Mar 2008
    Posts
    5

    Question Reverse a number

    Hi I am unable to reverse the binary representation of a number is there an easy way to do it? Please?

  2. #2
    Just Lurking Dave_Sinkula's Avatar
    Join Date
    Oct 2002
    Posts
    5,006
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

  3. #3
    C++ Witch laserlight's Avatar
    Join Date
    Oct 2003
    Location
    Singapore
    Posts
    21,313
    Store the representation in a string, then reverse that string. Alternatively, access in reverse a std::bitset of that number.
    C + C++ Compiler: MinGW port of GCC
    Version Control System: Bazaar

    Look up a C++ Reference and learn How To Ask Questions The Smart Way

  4. #4
    Banned
    Join Date
    Nov 2007
    Posts
    678
    You mean change 12345 to 54321?
    That's not difficult. You should use '%' operator.

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. adding a number to a number
    By bigmac(rexdale) in forum C Programming
    Replies: 11
    Last Post: 10-24-2007, 12:56 PM
  2. scanf oddities
    By robwhit in forum C Programming
    Replies: 5
    Last Post: 09-22-2007, 01:03 AM
  3. gethostbyaddr() reverse lookups failing (???)
    By Uncle Rico in forum C Programming
    Replies: 9
    Last Post: 08-19-2005, 09:22 AM
  4. Prime number program problem
    By Guti14 in forum C Programming
    Replies: 11
    Last Post: 08-06-2004, 04:25 AM
  5. parsing a number
    By juancardenas in forum C Programming
    Replies: 1
    Last Post: 02-19-2003, 12:10 PM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21