[#bsl-vector-042]
= xref:bsl.adoc[bsl]::xref:bsl/vector-00d.adoc[vector<VALUE, ALLOCATOR>]
:relfileprefix: ../
:mrdocs:

Deduce the template parameter `VALUE` from the `value_type` of the iterators supplied to the constructor of `vector`. This deduction guide does not participate unless the supplied allocator meets the requirements of a standard allocator.

== Synopsis

Declared in `<bslstl_vector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class INPUT_ITERATOR,
    class ALLOCATOR,
    class VALUE = xref:BloombergLP/bslstl/IteratorUtil/IterVal_t.adoc[BloombergLP::bslstl::IteratorUtil::IterVal_t<INPUT_ITERATOR>]>
requires bsl::IsStdAllocator_v<ALLOCATOR>
xref:bsl/vector-00d.adoc[vector<VALUE, ALLOCATOR>](
    INPUT_ITERATOR,
    INPUT_ITERATOR,
    ALLOCATOR) -> xref:bsl/vector-00d.adoc[vector<VALUE, ALLOCATOR>];
----


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