[#BloombergLP-bslfmt-FormatSpecificationParser-filler]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslfmt.adoc[bslfmt]::xref:BloombergLP/bslfmt/FormatSpecificationParser.adoc[FormatSpecificationParser]::filler
:relfileprefix: ../../../
:mrdocs:

Return the stored filler string&period;

== Synopsis

Declared in `&lt;bslfmt&lowbar;formatspecificationparser&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
t&lowbar;CHAR const*
filler() const;
----

== Description

If `parse` has not previously been called throw a `format&lowbar;error` exception&period;

== Return Value

pointer to the stored filler characters


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