[#absl-equal-07]
= xref:absl.adoc[absl]::equal
:relfileprefix: ../
:mrdocs:

Determines whether two ranges are equal using a custom predicate.

== Synopsis

Declared in `<absl/algorithm/algorithm.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    class InputIt1,
    class InputIt2,
    class BinaryPredicate>
[[deprecated]]
constexpr
bool
equal(
    InputIt1 first1,
    InputIt1 last1,
    InputIt2 first2,
    BinaryPredicate p);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Description

Compares the elements in the range `[first1, last1)]` with the range beginning at `first2`, using the binary predicate `p`.

== Return Value

`true` if every compared pair of elements satisfies `p`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *first1*
| Iterator to the first element of the first range.
| *last1*
| Iterator one past the last element of the first range.
| *first2*
| Iterator to the first element of the second range.
| *p*
| Binary predicate used to compare corresponding elements.
|===


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