These operators add and subtract COleDateTimeSpan values.
| Header file: | Afxdisp.h | 
| Platforms: | H/PC 2.0, H/PC Pro | 
| Windows CE versions: | 2.0 and later | 
| Complete documentation: | Visual C++ documentation | 
COleDateTimeSpan operator+( const COleDateTimeSpan& dateSpan ) const;
COleDateTimeSpan operator-( const COleDateTimeSpan& dateSpan ) const;
COleDateTimeSpan operator-( ) const;
COleDateTimeSpan::operator +=, -=