COleDateTimeSpan Relational Operators

BOOL operator==( const COleDateTimeSpan& dateSpan ) const;

BOOL operator!=( const COleDateTimeSpan& dateSpan ) const;

BOOL operator<( const COleDateTimeSpan& dateSpan ) const;

BOOL operator>( const COleDateTimeSpan& dateSpan ) const;

BOOL operator<=( const COleDateTimeSpan& dateSpan ) const;

BOOL operator>=( const COleDateTimeSpan& dateSpan ) const;

Remarks

These operators compare two date/time-span values and return nonzero if the condition is true; otherwise 0.

Note   The return value of the ordering operations (<, <=, >, >=) is undefined if the status of either operand is null or invalid. The equality operators (==, !=) consider the status of the operands.

Example

COleDateTimeSpan spanOne(3, 12, 0, 0); // 3 days and 12 hours
COleDateTimeSpan spanTwo(spanOne);     // 3 days and 12 hours
BOOL b;
b = spanOne == spanTwo;                // TRUE

spanTwo.SetStatus(COleDateTimeSpan::invalid);
b = spanOne == spanTwo;                // FALSE, different status
b = spanOne != spanTwo;                // TRUE, different status
b = spanOne < spanTwo;                 // FALSE, same value
b = spanOne > spanTwo;                 // FALSE, same value
b = spanOne <= spanTwo;                // TRUE, same value
b = spanOne >= spanTwo;                // TRUE, same value

Note   The last four lines of the preceding example will ASSERT in debug mode.

COleDateTimeSpan ts1(100.0);   // one hundred days
COleDateTimeSpan ts2(110.0);   // ten more days

ASSERT( (ts1 != ts2) && (ts1 < ts2) && (ts1 <= ts2) );

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