[#BSLMF_TYPEIDENTITY_T]
= BSLMF_TYPEIDENTITY_T
:mrdocs:

Metafunction returning its type argument unchanged. Shorthand alias for `typename type_identity<...>::type`. The type argument to this macro must be a _dependent type_ of the function template or class template in which it is used, i.e., a template parameter or type related to a template parameter. Note that this macro exists for compatibility with C++03; for C++11 and later compilers, `bsl::type_identity_t` is preferred.

== Synopsis

Declared in `<bslmf_typeidentity.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
#define BSLMF_TYPEIDENTITY_T(...)

----

== Description

Implementation note: space before closing `>` is important to avoid `>>` issues in C++03.


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