String Help!!!

This is a discussion on String Help!!! within the C++ Programming forums, part of the General Programming Boards category; can someone check on this code [error occur] Code: cout<<endl<<str.size()<<endl; if(str.size() % 2 ==0) { cout<<str; } else { str.resize((str.size)+1); ...

  1. #1
    Registered User
    Join Date
    Nov 2005
    Posts
    71

    String Help!!!

    can someone check on this code [error occur]

    Code:
        cout<<endl<<str.size()<<endl;
        if(str.size() % 2 ==0)
        {
            cout<<str;
        }    
        else
        {
            str.resize((str.size)+1);
        }
    the error message is

    In function `int main()':
    invalid use of member (did you forget the `&' ?)

  2. #2
    Supermassive black hole cboard_member's Avatar
    Join Date
    Jul 2005
    Posts
    1,709
    Can you post the whole code or is it too long?
    Good class architecture is not like a Swiss Army Knife; it should be more like a well balanced throwing knife.

    - Mike McShaffry

  3. #3
    Bond sunnypalsingh's Avatar
    Join Date
    Oct 2005
    Posts
    162
    I don't about the error you are showing...you need to give the complete code for that...but there is another error in this code...it should be
    Code:
    (str.size()+1);
    instead of
    Code:
    ((str.size)+1);

  4. #4
    Registered User
    Join Date
    Nov 2005
    Posts
    71
    yeah it is bit long

  5. #5
    Bond sunnypalsingh's Avatar
    Join Date
    Oct 2005
    Posts
    162
    Quote Originally Posted by gtr_s15
    yeah it is bit long
    Let me save your time...follow these steps
    1.Ctrl+A
    2.Ctrl+C
    3.Ctrl+V

  6. #6
    the hat of redundancy hat nvoigt's Avatar
    Join Date
    Aug 2001
    Location
    Hannover, Germany
    Posts
    3,139
    Quote Originally Posted by sunnypalsingh
    I don't about the error you are showing...you need to give the complete code for that...but there is another error in this code...it should be
    Code:
    (str.size()+1);
    instead of
    Code:
    ((str.size)+1);
    ... and this error would likely make the compiler issue a statement like "invalid use of member", because it's... an invalid use of a member
    hth
    -nv

    She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate."

    When in doubt, read the FAQ.
    Then ask a smart question.

  7. #7
    Supermassive black hole cboard_member's Avatar
    Join Date
    Jul 2005
    Posts
    1,709
    But what would & have to do with anything?
    Good class architecture is not like a Swiss Army Knife; it should be more like a well balanced throwing knife.

    - Mike McShaffry

  8. #8
    Registered User
    Join Date
    Dec 2005
    Location
    the Netherlands
    Posts
    5
    Don't know what you exactly want, anyway this is the official syntax:
    #include <string>
    void resize( size_type num, const TYPE& val = TYPE() );

    So, you cannot just add 1 in the resize syntax, as you did here:
    str.resize((str.size)+1);
    Instead, try something like this:
    Code:
    int newsize = str.size() + ;1
    str.resize(newsize);
    Here's an example:
    Code:
    #include <string.h>
    #include <iostream.h>
    
    using namespace std;
    
    int main ()
    {
    	string some_string;
    	int new_string_size;
    	
    	cout << "Enter a string:\n";
    	cin >> some_string;
    	cout << "string size = " << some_string.size () << endl << endl;
    	
    	if (some_string.size () % 2 == 0)
    	{
    		cout << "Your string size is even.\n";
    	} else
    	{
    		new_string_size = some_string.size () + 1;
    		some_string.resize (new_string_size);
    		
    		cout << "Your string size was odd and has now been made even.\n\n";
    	}
    }
    Last edited by StOnEwAlL; 12-09-2005 at 01:13 PM.

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. compare structures
    By lazyme in forum C++ Programming
    Replies: 15
    Last Post: 05-28-2009, 03:40 AM
  2. OOP Question DB Access Wrapper Classes
    By digioz in forum C# Programming
    Replies: 2
    Last Post: 09-07-2008, 05:30 PM
  3. Message class ** Need help befor 12am tonight**
    By TransformedBG in forum C++ Programming
    Replies: 1
    Last Post: 11-29-2006, 11:03 PM
  4. Classes inheretance problem...
    By NANO in forum C++ Programming
    Replies: 12
    Last Post: 12-09-2002, 03:23 PM
  5. Warnings, warnings, warnings?
    By spentdome in forum C Programming
    Replies: 25
    Last Post: 05-27-2002, 07:49 PM

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