[#BloombergLP-bsls-FuzzTestPreconditionException-expression]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bsls.adoc[bsls]::xref:BloombergLP/bsls/FuzzTestPreconditionException.adoc[FuzzTestPreconditionException]::expression
:relfileprefix: ../../../
:mrdocs:

Return a string containing the program source of the assertion that has failed&period;

== Synopsis

Declared in `&lt;bsls&lowbar;fuzztestpreconditionexception&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char const*
expression() const;
----

== Return Value

null&hyphen;terminated program source of the failing assertion


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