[#BloombergLP-ball-PatternUtil-isValidPattern]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/PatternUtil.adoc[PatternUtil]::isValidPattern
:relfileprefix: ../../../
:mrdocs:

Return `true` if `pattern` is a valid pattern string.

== Synopsis

Declared in `<ball_patternutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
bool
isValidPattern(char const* pattern);
----

== Description

Return `true` if the specified `pattern` does not contain a '' not followed by either '' or `*`, or an unescaped `*` at locations other than at the end, and `false` otherwise. Note that an unescaped `*` not at the end may someday be considered a valid pattern.

== Return Value

`true` if `pattern` is a valid pattern string, and `false` otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pattern*
| null‐terminated pattern string to validate
|===


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