[#BloombergLP-bdljsn-JsonNumber-2constructor-01]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdljsn.adoc[bdljsn]::xref:BloombergLP/bdljsn/JsonNumber.adoc[JsonNumber]::JsonNumber
:relfileprefix: ../../../
:mrdocs:

Create a `JsonNumber` having the specified `value`. Optionally specify an `allocator` (e.g., the address of a `bslma::Allocator` object) used to supply memory. The behavior is undefined if the `value` is infinite (`INF`) or not‐a‐number (`NaN`).

== Synopsis

Declared in `<bdljsn_jsonnumber.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
JsonNumber(
    float value,
    xref:BloombergLP/bdljsn/JsonNumber/allocator_type.adoc[allocator_type] const& allocator = allocator_type());
----


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