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COleDateTime Relational Operators

  • Article

Comparison operators.

bool operator ==( 
   const COleDateTime& date  
) const throw( ); 
bool operator !=( 
   const COleDateTime& date  
) const throw( ); 
bool operator <( 
   const COleDateTime& date  
) const throw( ); 
bool operator >( 
   const COleDateTime& date  
) const throw( ); 
bool operator <=( 
   const COleDateTime& date  
) const throw( ); 
bool operator >=( 
   const COleDateTime& date  
) const throw( );

Parameters

  • date
    The COleDateTime object to be compared.

Return values

These operators compare two date/time values and return true if the condition is true; otherwise false.

Remarks

Note

An ATLASSERT will occur if either of the two operands is invalid.

Example

COleDateTime dateOne(1995, 3, 15, 12, 0, 0); // 15 March 1995 12 noon
COleDateTime dateTwo(dateOne);             // 15 March 1995 12 noon
BOOL b;
b = dateOne == dateTwo;                    // TRUE
b = dateOne < dateTwo;                     // FALSE, same value
b = dateOne > dateTwo;                     // FALSE, same value
b = dateOne <= dateTwo;                    // TRUE, same value
b = dateOne >= dateTwo;                    // TRUE, same value   

dateTwo.SetStatus(COleDateTime::invalid);
b = dateOne == dateTwo;                    // FALSE, different status
b = dateOne != dateTwo;                    // TRUE, different status

The operators >=, <=, >, and <, will assert if the COleDateTime object is set to null.

VARIANT v = {};
v.vt = VT_NULL;
COleDateTime t1(v);
COleDateTime t2(v);
t1 = t1 + t2;

Requirements

Header: atlcomtime.h

See Also

Reference

COleDateTime Class

Hierarchy Chart

COleDateTime::GetStatus