[#BloombergLP-bdlt-Timetable-addTransition-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Timetable.adoc[Timetable]::addTransition
:relfileprefix: ../../../
:mrdocs:

Add or replace a transition on `date` at `time` with `code`.

== Synopsis

Declared in `<bdlt_timetable.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
addTransition(
    xref:BloombergLP/bdlt/Date.adoc[Date] const& date,
    xref:BloombergLP/bdlt/Time.adoc[Time] const& time,
    int code);
----

== Description

Add a transition to this timetable on the specified `date` at the specified `time` having the specified `code`. If `time` is already a transition point on `date`, replace the existing code with `code`. The addition of a transition, but not the replacement of the code of an existing transition, invalidates all iterators. The behavior is undefined unless `24 > time.hour()`, `date` is within the valid range of this timetable, and `0 <= code || k_UNSET_TRANSITION_CODE == code`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *date*
| date of the transition
| *time*
| time of the transition
| *code*
| transition code
|===


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