[#bsl-hash-017-operator_call-03]
= xref:bsl.adoc[bsl]::xref:bsl/hash-017.adoc[hash<basic_string<CHAR_TYPE, CHAR_TRAITS, ALLOCATOR>>]::operator()
:relfileprefix: ../../
:mrdocs:

Compute and return the hash value of a null‐terminated string.

== Synopsis

Declared in `<bslstl_string.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::size_t
operator()(CHAR_TYPE const* input) const;
----

== Description

Compute and return the hash value of the contents of the specified null‐terminated `input`. This value will be the same as the hash value of a `basic_string` constructed from `input`.

== Return Value

hash value of the input

== Parameters

[cols="1,4"]
|===
| Name| Description
| *input*
| null‐terminated character string to hash
|===


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