[#BloombergLP-bbldc-BasicIsma30360]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bbldc.adoc[bbldc]::BasicIsma30360
:relfileprefix: ../../
:mrdocs:

This `struct` provides a namespace for a suite of pure functions that compute values based on dates according to the ISMA 30/360 day‐count convention.

== Synopsis

Declared in `<bbldc_basicisma30360.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct BasicIsma30360;
----

== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bbldc/BasicIsma30360/daysDiff.adoc[`daysDiff`] 
| Return the (signed) number of days between the specified `beginDate` and `endDate` according to the ISMA 30/360 day‐count convention. If `beginDate <= endDate`, then the result is non‐negative. Note that reversing the order of `beginDate` and `endDate` negates the result.
| xref:BloombergLP/bbldc/BasicIsma30360/yearsDiff.adoc[`yearsDiff`] 
| Return the (signed fractional) number of years between the specified `beginDate` and `endDate` according to the ISMA 30/360 day‐count convention. 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`.
|===



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