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

Return the (signed) number of days between the specified `beginDate` and `endDate` according to the specified day‐count `convention`. If `beginDate <= endDate` then the result is non‐negative. The behavior is undefined unless `isSupported(convention)`. Note that reversing the order of `beginDate` and `endDate` negates the result.

== Synopsis

Declared in `<bbldc_perioddaycountutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
daysDiff(
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date] const& beginDate,
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date] const& endDate,
    xref:BloombergLP/bbldc/DayCountConvention/Enum.adoc[DayCountConvention::Enum] convention);
----


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