[#llvm-operator_lshift-015]
= xref:llvm.adoc[llvm]::operator<<
:relfileprefix: ../
:mrdocs:

Print a short description useful for debugging or logging.

== Synopsis

Declared in `<llvm/Analysis/LazyCallGraph.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/raw_ostream.adoc[raw_ostream]&
operator<<(
    xref:llvm/raw_ostream.adoc[raw_ostream]& OS,
    xref:llvm/LazyCallGraph/RefSCC.adoc[RefSCC] const& RC);
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:llvm/LazyCallGraph/RefSCC.adoc[RefSCC], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Description

We print the SCCs wrapped in '[]'s and skipping the middle SCCs if there are a large number.

== Return Value

The stream `OS` after writing.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *OS*
| Stream to write to.
| *RC*
| RefSCC to print.
|===


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