[#llvm-isMask_32]
= xref:llvm.adoc[llvm]::isMask_32
:relfileprefix: ../
:mrdocs:

Return true if the argument is a non‐empty low‐bit ones mask (32‐bit).

== Synopsis

Declared in `<llvm/Support/MathExtras.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
bool
isMask_32(uint32_t Value);
----

== Description

The remainder bits must be zero. Ex. isMask_32(0x0000FFFFU) == true.

== Return Value

True if Value is a non‐empty low‐bit ones mask.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *Value*
| 32‐bit value to test.
|===


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