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

Namespace for floating‐point classification types and functions.

== Synopsis

Declared in `<bdlb_float.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct Float;
----

== Enums

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlb/Float/Classification.adoc[`Classification`] 
| Basic classifications for floating‐point numbers. Every floating‐point number belongs to exactly one of these classifications. However, the enumerated values have disjoint bit‐patterns to make it easy to create a "set" of classifications using bit‐wise OR.
| xref:BloombergLP/bdlb/Float/FineClassification.adoc[`FineClassification`] 
| Fine‐grained classifications for floating‐point numbers that distinguish positive numbers from negative numbers and quiet NaNs from signaling NaNs. Every floating‐point number belongs to exactly one of these classifications.
|===


== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlb/Float/classify-01.adoc[`classify`] 
| `classify` overloads
| xref:BloombergLP/bdlb/Float/classifyFine-06.adoc[`classifyFine`] 
| `classifyFine` overloads
| xref:BloombergLP/bdlb/Float/isFinite-00.adoc[`isFinite`] 
| `isFinite` overloads
| xref:BloombergLP/bdlb/Float/isInfinite-0a.adoc[`isInfinite`] 
| `isInfinite` overloads
| xref:BloombergLP/bdlb/Float/isNan-06.adoc[`isNan`] 
| `isNan` overloads
| xref:BloombergLP/bdlb/Float/isNormal-03.adoc[`isNormal`] 
| `isNormal` overloads
| xref:BloombergLP/bdlb/Float/isQuietNan-08.adoc[`isQuietNan`] 
| `isQuietNan` overloads
| xref:BloombergLP/bdlb/Float/isSignalingNan-01.adoc[`isSignalingNan`] 
| `isSignalingNan` overloads
| xref:BloombergLP/bdlb/Float/isSubnormal-0d.adoc[`isSubnormal`] 
| Return `true` if the specified floating point `number` holds a subnormal value, and `false` otherwise.
| xref:BloombergLP/bdlb/Float/isZero-00.adoc[`isZero`] 
| Return `true` if the specified floating point `number` has a value of positive or negative zero, and `false` otherwise.
| xref:BloombergLP/bdlb/Float/signBit-0b.adoc[`signBit`] 
| `signBit` overloads
|===



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