[#bsl-map-0a7-upper_bound-04]
= xref:bsl.adoc[bsl]::xref:bsl/map-0a7.adoc[map]::upper_bound
:relfileprefix: ../../
:mrdocs:

Return an iterator providing non‐modifiable access to the first (i.e., ordered least) `value_type` object in this map whose key is greater than the specified `key`, and the past‐the‐end iterator if this map does not contain a `value_type` object whose key is greater‐than `key`. Note that this function returns the _last_ position before which a `value_type` object having an equivalent key could be inserted into the ordered sequence maintained by this map, while preserving its ordering.

== Synopsis

Declared in `<bslstl_map.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class LOOKUP_KEY>
xref:bsl/map-0a7/const_iterator.adoc[const_iterator]
upper_bound(LOOKUP_KEY const& key) const
requires BloombergLP::bslmf::IsTransparentPredicate<COMPARATOR,
                                                   LOOKUP_KEY>::value;
----


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