[#operator_eq-01f]
= operator==
:mrdocs:

Compares two allocators for equality; they are always equal since the allocator is stateless.

== Synopsis

Declared in `<support/allocators/zeroafterfree.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename U>
bool
operator==(
    xref:zero_after_free_allocator-01.adoc[zero_after_free_allocator] const& a,
    xref:zero_after_free_allocator-01.adoc[zero_after_free_allocator<U>] const& b) noexcept;
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:zero_after_free_allocator-01.adoc[zero_after_free_allocator], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Return Value

Always true.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| First allocator to compare (unused).
| *b*
| Second allocator to compare (unused).
|===


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