[#BloombergLP-bdlt-CalendarUtil-shiftIfValid-0df]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/CalendarUtil.adoc[CalendarUtil]::shiftIfValid
:relfileprefix: ../../../
:mrdocs:

`shiftIfValid` overloads

== Synopses

Declared in `<bdlt_calendarutil.h>`

Shift `original` using the specified `convention` if valid.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
xref:BloombergLP/bdlt/CalendarUtil/shiftIfValid-09.adoc[shiftIfValid](
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date]* result,
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date] const& original,
    xref:BloombergLP/bdlt/Calendar.adoc[bdlt::Calendar] const& calendar,
    xref:BloombergLP/bdlt/CalendarUtil/ShiftConvention.adoc[ShiftConvention] convention);
----

[.small]#xref:BloombergLP/bdlt/CalendarUtil/shiftIfValid-09.adoc[_» more..._]#

Shift `original` with special‐day handling if valid.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
xref:BloombergLP/bdlt/CalendarUtil/shiftIfValid-0d7.adoc[shiftIfValid](
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date]* result,
    xref:BloombergLP/bdlt/Date.adoc[bdlt::Date] const& original,
    xref:BloombergLP/bdlt/Calendar.adoc[bdlt::Calendar] const& calendar,
    xref:BloombergLP/bdlt/CalendarUtil/ShiftConvention.adoc[ShiftConvention] convention,
    xref:BloombergLP/bdlt/DayOfWeek/Enum.adoc[bdlt::DayOfWeek::Enum] specialDay,
    bool extendSpecialDay,
    xref:BloombergLP/bdlt/CalendarUtil/ShiftConvention.adoc[ShiftConvention] specialConvention);
----

[.small]#xref:BloombergLP/bdlt/CalendarUtil/shiftIfValid-0d7.adoc[_» more..._]#

== Return Value

0 on success, non‐zero on failure

== Parameters

[cols="1,4"]
|===
| Name| Description
| *result*
| destination for the shifted date
| *original*
| starting date
| *calendar*
| calendar used for business‐day determination
| *convention*
| date‐shifting convention to apply
| *specialDay*
| day of week that triggers special handling
| *extendSpecialDay*
| whether non‐business days preceding `specialDay` also use `specialConvention`
| *specialConvention*
| convention used for special‐day cases
|===


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