[#BloombergLP-ball-Log_Stream-2constructor]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/Log_Stream.adoc[Log_Stream]::Log_Stream
:relfileprefix: ../../../
:mrdocs:

Create a logging stream that holds (1) the specified `category` and `severity`, (2) a record that is created from the specified `fileName` and `lineNumber`, and (3) an `bsl::ostream` to which the log message is put.

== Synopsis

Declared in `<ball_log.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Log_Stream(
    xref:BloombergLP/ball/Category.adoc[Category] const* category,
    std::string_view const& fileName,
    int lineNumber,
    int severity);
----


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