[#BloombergLP-bsls-TimeInterval-operator_plus_eq-02]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/TimeInterval.adoc[TimeInterval]::operator+=
:relfileprefix: ../../../
:mrdocs:

Addition assignment operators

== Synopses

Declared in `<bsls_timeinterval.h>`

Add to this time interval the value of the specified `rhs` real number of seconds, and return a reference providing modifiable access to this object. The fractional part of `rhs`, if any, is rounded to the nearest whole number of nanoseconds before being added to this object. The behavior is undefined unless `rhs` can be converted to a valid `TimeInterval` object, and the total number of seconds in the resulting time interval can be represented with a 64‐bit signed integer.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bsls/TimeInterval.adoc[TimeInterval]&
xref:BloombergLP/bsls/TimeInterval/operator_plus_eq-054.adoc[operator+=](double rhs);
----

[.small]#xref:BloombergLP/bsls/TimeInterval/operator_plus_eq-054.adoc[_» more..._]#

Add to this time interval the value of the specified `rhs` time interval, and return a reference providing modifiable access to this object. The behavior is undefined unless the total number of seconds in the resulting time interval can be represented with a 64‐bit signed integer.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bsls/TimeInterval.adoc[TimeInterval]&
xref:BloombergLP/bsls/TimeInterval/operator_plus_eq-058.adoc[operator+=](xref:BloombergLP/bsls/TimeInterval.adoc[TimeInterval] const& rhs);
----

[.small]#xref:BloombergLP/bsls/TimeInterval/operator_plus_eq-058.adoc[_» more..._]#


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