[#BloombergLP-bsls-OutputRedirector-compare-0e8]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/OutputRedirector.adoc[OutputRedirector]::compare
:relfileprefix: ../../../
:mrdocs:

Compare the character buffer pointed to by the specified pointer `expected` with any output that has been loaded into the scratch buffer. The length of the `expected` buffer is supplied in the specified `expectedLength`. Return 0 if the `expected` buffer has the same length and contents as the scratch buffer, and non‐zero otherwise. Note that the `expected` buffer is allowed to contain embedded nulls. The behavior is undefined unless `enable` has previously been called successfully.

== Synopsis

Declared in `<bsls_outputredirector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
compare(
    char const* expected,
    size_t expectedLength) const;
----


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