[#BloombergLP-bslmf-IsFundamental-04]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmf.adoc[bslmf]::IsFundamental
:relfileprefix: ../../
:mrdocs:

This `struct` template implements a meta&hyphen;function for checking if a type is fundamental, or a reference to a fundamental type&period; The static constant `value` member will be 1 if `t&lowbar;TYPE` is fundamental and 0 otherwise&period;

== Synopsis

Declared in `&lt;bslmf&lowbar;isfundamental&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class t&lowbar;TYPE&gt;
struct IsFundamental
    : &sol;&ast; implementation-defined &ast;&sol;::type
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `&sol;&ast; implementation-defined &ast;&sol;::type`
| 
|===

== Specializations

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslmf/IsFundamental-02.adoc[`IsFundamental&lt;t&lowbar;TYPE&&gt;`] 
| This specialization of `IsFundamental` causes lvalue&hyphen;references to be treated as their underlying (non&hyphen;reference) types&period;
|===



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