[#BloombergLP-bslalg-RbTreeUtil-findUniqueInsertLocation-0a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslalg.adoc[bslalg]::xref:BloombergLP/bslalg/RbTreeUtil.adoc[RbTreeUtil]::findUniqueInsertLocation
:relfileprefix: ../../../
:mrdocs:

Return the unique‐insert location for `value`, using `hint`.

== Synopsis

Declared in `<bslalg_rbtreeutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class NODE_VALUE_COMPARATOR,
    class VALUE>
static
xref:BloombergLP/bslalg/RbTreeNode.adoc[RbTreeNode]*
findUniqueInsertLocation(
    int* comparisonResult,
    xref:BloombergLP/bslalg/RbTreeAnchor.adoc[RbTreeAnchor]* tree,
    NODE_VALUE_COMPARATOR& comparator,
    VALUE const& value,
    xref:BloombergLP/bslalg/RbTreeNode.adoc[RbTreeNode]* hint);
----

== Description

Return the address of the node holding the specified `value` in the specified `tree`, or the parent for `value` otherwise, using the specified `hint` to improve performance when it is the immediate successor.

== Return Value

address of the matching node, or the parent for inserting `value`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *comparisonResult*
| set to 0 on match, else left/right child sign
| *tree*
| tree in which to locate `value` or its insert parent
| *comparator*
| functor used to order nodes against `value`
| *value*
| value whose unique insert location is returned
| *hint*
| possible immediate successor of `value` in `tree`
|===


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