[C++] typedef Problem

Computer: Software & Programmierung C/C++
#1

Hallo,

was bedeutet im folgenden CodeSchnipsel die letzte Zeile:

struct ListNumber 
{
 CString s;
 BOOL b1;
 BOOL b2;
};

typedef CArray ListNumberArray;

danke Ralf

#2

VC-Hilfe
Hi Ralf :smile:

Hier ist das, was MSDN dazu meint …

The simple array and list classes,CArray andCList, take two parameters: TYPE and ARG_TYPE. These classes can store any data type, which you specify in the TYPE parameter:

Fundamental C++ data types, such as int, char, and float
C++ structures and classes
Other types that you define

For convenience and efficiency, you can use the ARG_TYPE parameter to specify the type of function arguments. Typically, you specify ARG_TYPE as a reference to the type you named in the TYPE parameter. For example:

CArray myArray;
CList myList;

The first example declares an array collection, myArray, that contains ints. The second example declares a list collection, myList, that stores CPerson objects. Certain member functions of the collection classes take arguments whose type is specified by the ARG_TYPE template parameter. For example, the Add member function of class CArray takes an ARG_TYPE argument:

CArray myArray;
CPerson person;
myArray->Add( person );

Viele Grüße

Stefan.

#3

Hi Stefan, besten Dank, viele Grüße Ralf