[#llvm-ELFCompactAttrParser-getAttributeValue-06]
= xref:llvm.adoc[llvm]::xref:llvm/ELFCompactAttrParser.adoc[ELFCompactAttrParser]::getAttributeValue
:relfileprefix: ../../
:mrdocs:

Return the integer value for `tag;` subsection name must be empty.

== Synopsis

Declared in `<llvm/Support/ELFAttrParserCompact.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
std::optional<unsigned int>
getAttributeValue(
    xref:llvm/StringRef.adoc[StringRef] buildAttributeSubsectionName,
    unsigned int tag) const override;
----

== Description

Compact attributes have a single subsection, so `buildAttributeSubsectionName` must be empty.

== Return Value

The stored value, or `std::nullopt` if `tag` was not seen.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *buildAttributeSubsectionName*
| Must be an empty string.
| *tag*
| Attribute tag number.
|===


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