[#BloombergLP-bbldc-BasicDayCount]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bbldc.adoc[bbldc]::BasicDayCount
:relfileprefix: ../../
:mrdocs:

This `class` provides a protocol for determining values based on dates according to derived implementations of specific day‐count conventions.

== Synopsis

Declared in `<bbldc_basicdaycount.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class BasicDayCount;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bbldc/BasicDayCount/2destructor.adoc[`~BasicDayCount`] [.small]#[destructor]# [.small]#[virtual]#
| Destroy this object.
| xref:BloombergLP/bbldc/BasicDayCount/daysDiff.adoc[`daysDiff`]  [.small]#[virtual]#
| Return the (signed) number of days between the specified `beginDate` and `endDate`. If `beginDate <= endDate`, then the result is non‐negative. Note that reversing the order of `beginDate` and `endDate` negates the result.
| xref:BloombergLP/bbldc/BasicDayCount/yearsDiff.adoc[`yearsDiff`]  [.small]#[virtual]#
| Return the (signed fractional) number of years between the specified `beginDate` and `endDate`. If `beginDate <= endDate`, then the result is non‐negative. Note that reversing the order of `beginDate` and `endDate` negates the result; specifically, `|yearsDiff(b, e) + yearsDiff(e, b)| <= 1.0e‐15` for all dates `b` and `e`.
|===


== Derived Classes

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bbldc/BasicBasicDayCountAdapter.adoc[`BasicBasicDayCountAdapter`] 
| This `class` provides an "adapter" from the specified `CONVENTION` to the `bbldc::BasicDayCount` protocol that can be used for determining values based on dates according to the day‐count `CONVENTION`.
| xref:BloombergLP/bbldc/TerminatedBasicDayCountAdapter.adoc[`TerminatedBasicDayCountAdapter`] 
| This `class` provides an "adapter" from the specified `CONVENTION` to the `bbldc::BasicDayCount` protocol that can be used for determining values based on dates according to the day‐count `CONVENTION`.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#