[#llvm-operator_lt-04b]
= xref:llvm.adoc[llvm]::operator<
:relfileprefix: ../
:mrdocs:

Compare two adapted iterators for order.

== Synopsis

Declared in `<llvm/ADT/iterator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
operator<(
    xref:llvm/iterator_adaptor_base-081.adoc[iterator_adaptor_base<succ_iterator, Use*, random_access_iterator_tag, BasicBlock*, long, BasicBlock*, BasicBlock*>] const& LHS,
    xref:llvm/iterator_adaptor_base-081.adoc[iterator_adaptor_base<succ_iterator, Use*, random_access_iterator_tag, BasicBlock*, long, BasicBlock*, BasicBlock*>] const& RHS);
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:llvm/iterator_adaptor_base-081.adoc[iterator_adaptor_base], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Return Value

True if `LHS` is less than `RHS.`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *LHS*
| Left‐hand adapted iterator.
| *RHS*
| Right‐hand adapted iterator.
|===


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