[#bsl-operator_lt-03]
= xref:bsl.adoc[bsl]::operator<
:relfileprefix: ../
:mrdocs:

Return `true` if the specified `lhs` iterator is earlier in the underlying sequence than the specified `rhs` iterator, and `false` otherwise. The behavior is undefined if `lhs` and `rhs` do not iterate over the same sequence, or if the (template parameter) type `ITERATOR` is not a random access iterator.

== Synopsis

Declared in `<bslstl_vector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator<(
    xref:bsl/vector_UintPtrConversionIterator.adoc[vector_UintPtrConversionIterator] const& lhs,
    xref:bsl/vector_UintPtrConversionIterator.adoc[vector_UintPtrConversionIterator] const& rhs);
----


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