[#BloombergLP-bdlb-Float-signBit-0b]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/Float.adoc[Float]::signBit
:relfileprefix: ../../../
:mrdocs:

Return `true` if the sign bit of `number` is set.

== Synopses

Declared in `<bdlb_float.h>`

Return `true` if the sign bit of `number` is set.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
bool
xref:BloombergLP/bdlb/Float/signBit-04b2.adoc[signBit](double number);
----

[.small]#xref:BloombergLP/bdlb/Float/signBit-04b2.adoc[_» more..._]#

Return `true` if the sign bit of `number` is set.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
bool
xref:BloombergLP/bdlb/Float/signBit-04bb.adoc[signBit](float number);
----

[.small]#xref:BloombergLP/bdlb/Float/signBit-04bb.adoc[_» more..._]#

== Return Value

`true` if the sign bit of `number` is set, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *number*
| floating‐point value to test
|===


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