Re: CArray, CStringArray, CMap, ...

"Giovanni Dicanio" <>
Tue, 7 Apr 2009 18:28:21 +0200
"KW" <> ha scritto nel messaggio

I have a list of CStrings I would like to add to an array or list.

I would like to be able to:
   Return the count of items.
   Find a specific item.
   Remove all of the items.
   Allow the list/array to grow dynamically (could be 100 up to 10000

Of course, I can iterate through the items for each of these functions,
but I would like do this in the fastest way possible. It would also be a
plus if these operations were thread safe.

Are there any suggestions on the best route to take?

I would use std::vector template container class from STL.
std::vector works just fine with CString as contained item.

This code sample shows the points you requested:


    // A list of strings stored in an array
    typedef std::vector< CString > StringList;

    // Create an empty collection
    StringList someStrings;

    // Grows the collection dynamically
    someStrings.push_back( _T("I'm the first string.") );
    someStrings.push_back( _T("I'm the second string.") );
    someStrings.push_back( _T("Hello") );

    // 3 items in the container.
    // Use size() method to get count of items.
    ASSERT(someStrings.size() == 3);

    // Search the string "Hello"
    StringList::iterator it;
    it = std::find( someStrings.begin(), someStrings.end(), _T("Hello") );
    if ( it == someStrings.end() )
        // Not found
        // Found

    // Remove all of the items
    ASSERT(someStrings.size() == 0);



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