Constructs an empty CObject pointer list.
CObList(
INT_PTR nBlockSize = 10
);
Parameters
- nBlockSize
The memory-allocation granularity for extending the list.
Remarks
As the list grows, memory is allocated in units of nBlockSize entries. If a memory allocation fails, a CMemoryException is thrown.
The following table shows other member functions that are similar to CObList::CObList.
Class |
Member Function |
|---|---|
CPtrList( INT_PTR nBlockSize = 10 ); |
|
CStringList( INT_PTR nBlockSize = 10 ); |
Example
Below is a listing of the CObject-derived class CAge used in all the collection examples:
// Simple CObject-derived class for CObList and other examples
class CAge : public CObject
{
DECLARE_SERIAL( CAge )
private:
int m_years;
public:
CAge() { m_years = 0; }
CAge(int age) { m_years = age; }
CAge(const CAge& a) { m_years = a.m_years; } // Copy constructor
void Serialize(CArchive& ar);
void AssertValid() const;
const CAge& operator=(const CAge& a)
{
m_years = a.m_years; return *this;
}
BOOL operator==(CAge a)
{
return m_years == a.m_years;
}
#ifdef _DEBUG
void Dump(CDumpContext& dc) const
{
CObject::Dump(dc);
dc << m_years;
}
#endif
};
Below is an example of CObList constructor usage:
CObList list(20); // List on the stack with blocksize = 20.
CObList* plist = new CObList; // List on the heap with default
// blocksize.
Requirements
Header: afxcoll.h