Return the number of days in this timetable's valid range.
Synopsis
Declared in <bdlt_timetable.h>
int
length() const;
Description
Return the number of days in the valid range of this timetable, which is defined to be 0 if this timetable is empty, and lastDate() ‐ firstDate() + 1 otherwise.
Return Value
number of days in the valid range
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