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

This meta‐function selects `t_IF_TRUE_TYPE` if `t_CONDITION` is non‐zero. and `t_IF_FALSE_TYPE` otherwise.

== Synopsis

Declared in `<bslmf_if.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    int t_CONDITION,
    class t_IF_TRUE_TYPE = xref:BloombergLP/bslmf/Nil.adoc[Nil],
    class t_IF_FALSE_TYPE = xref:BloombergLP/bslmf/Nil.adoc[Nil]>
struct If;
----

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslmf/If/Type.adoc[`Type`] 
| Selected type based on `t_CONDITION`.
|===



[.small]#Created with https://www.mrdocs.com[MrDocs]#