This constructor constructs an empty map. As the map grows, memory is allocated in units of nBlockSize entries.
| Header file: | Afxtempl.h | 
| Platforms: | H/PC 2.0, Palm-size PC, H/PC Pro | 
| Windows CE versions: | 1.0 and later | 
| Complete documentation: | Visual C++ documentation | 
CMap( int nBlockSize = 10 );