Class: TDays

Declaration: TimeClasses.h

Taxonomy Categories:

Member Functions:

Interface Category:

API.

Inherits From:

TTime

Inherited By:

None.

Purpose:

A TTime derived class for days.

Instantiation

Allocate on the heap or the stack.

Deriving Classes:

Derived classes must preserve the TTime and TDays interfaces.

Concurrency:

Not multithread safe.

Resource Use:

No special requirements.

Member Function: TDays::TDays

TDays ()
TDays (double numberOfDays)
TDays (const TTime & theTime)
TDays (const TDays & theDays)

Interface Category:

API.

Purpose:

Default constructor.
Initializes with the number of days to be represented.
Copy constructor for TTime and derived classes.
Copy constructor.

Calling Context:

Call this function directly.

Called by the stream-in operators and uninitialized objects.
Called to initialize with the number of days to be represented.
Called to copy a TTime or derived class.
Called to copy an object.

Parameters:

Takes no parameters.
double numberOfDays -The number of days to be represented.
const TTime & theTime -The object to copy.
const TDays & theDays -The object to copy.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

Can be safely type cast between TTime derived classes because no extra storage is added.

Member Function: TDays::~TDays

virtual ~ TDays ()

Interface Category:

API.

Purpose:

Destructor.

Calling Context:

Call this function directly. Called to destroy an object.

Parameters:

Takes no parameters.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TDays::GetDays

double GetDays () const

Interface Category:

API.

Purpose:

Gets the days represented.

Calling Context:

Call this function directly. Called to get a double of the days represented.

Parameters:

Takes no parameters.

Return Value:

The days.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

Returns a double that could be a NaN, or positive or negative infinity, depending on the time.

Member Function: TDays::operator=

TDays & operator =(const TDays & theDays)

Interface Category:

API.

Purpose:

Assignment operator.

Calling Context:

Call this function directly. Called when an object is assigned to another compatible object.

Parameters:

const TDays & theDays -The source object for the assignment.

Return Value:

A non-const reference to the left-hand side object.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

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