[#BloombergLP-bbldc-PeriodIcmaActualActual-yearsDiff-0c]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bbldc.adoc[bbldc]::xref:BloombergLP/bbldc/PeriodIcmaActualActual.adoc[PeriodIcmaActualActual]::yearsDiff
:relfileprefix: ../../../
:mrdocs:

Return the signed fractional year count using a `std::pmr::vector` of period boundary dates.

== Synopsis

Declared in `<bbldc_periodicmaactualactual.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
double
yearsDiff(
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date] const& beginDate,
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date] const& endDate,
    std::pmr::vector<bdlt::Date> const& periodDate,
    double periodYearDiff);
----


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