determining size of struct

This is a discussion on determining size of struct within the C Programming forums, part of the General Programming Boards category; Hello, when determining sizeof structs, does the sizeof() interprets char *string[10] as size of one pointer or size of 10 ...

  1. #1
    Registered User
    Join Date
    Apr 2008
    Posts
    61

    determining size of struct

    Hello,

    when determining sizeof structs, does the sizeof() interprets char *string[10] as size of one pointer or size of 10 characters?

  2. #2
    C++ Witch laserlight's Avatar
    Join Date
    Oct 2003
    Location
    Singapore
    Posts
    23,826
    It returns the size of 10 pointers to char.
    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

  3. #3
    Registered User
    Join Date
    Apr 2008
    Posts
    61
    so lets say natural alignment of pointer is 4, total size of the char *string[10] = 40?

  4. #4
    C++ Witch laserlight's Avatar
    Join Date
    Oct 2003
    Location
    Singapore
    Posts
    23,826
    Yes.
    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

  5. #5
    Registered User
    Join Date
    Apr 2008
    Posts
    61
    thanks

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Converting from C to C++
    By Taka in forum C++ Programming
    Replies: 5
    Last Post: 04-08-2009, 02:16 AM
  2. struct pointer
    By t014y in forum C Programming
    Replies: 5
    Last Post: 01-26-2009, 02:50 PM
  3. Binary Search Trees Part III
    By Prelude in forum A Brief History of Cprogramming.com
    Replies: 16
    Last Post: 10-02-2004, 03:00 PM
  4. Replies: 11
    Last Post: 03-25-2003, 04:13 PM
  5. Determining Data Size For Network Send/Rec :: Winsock
    By kuphryn in forum Windows Programming
    Replies: 6
    Last Post: 05-07-2002, 09:01 PM

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