[#BloombergLP-baljsn-DatumUtil-encode-04]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/baljsn.adoc[baljsn]::xref:BloombergLP/baljsn/DatumUtil.adoc[DatumUtil]::encode
:relfileprefix: ../../../
:mrdocs:

Encode the specified `datum` as a JSON string, and write it into the specified `stream`. Return 0 on success, and a negative value if `datum` could not be encoded (which may leave a partial JSON sequence on the `stream`). If the optionally specified `options` argument is not present, treat it as a default‐constructed `DatumEncoderOptions`. If `options.strictTypes` is `true` and a type that is not supported by JSON, or a singular double value (e.g., NaN or infinity) is being encoded (see []Types)) return a positive value, but also populate `result` with an encoded JSON string (i.e., the value of `result` is the same regardless of the `strictTypes` option, but if `strictTypes` is `true` a non‐zero positive status will be returned). The mapping of types supported by `Datum` to JSON types is described in []Types).

== Synopsis

Declared in `<baljsn_datumutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
encode(
    std::ostream& stream,
    xref:BloombergLP/bdld/Datum.adoc[bdld::Datum] const& datum);
----


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