[#BloombergLP-bdlb-String-toUpper-0b]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/String.adoc[String]::toUpper
:relfileprefix: ../../../
:mrdocs:

Replace all lower case characters in the specified `string` having the optionally specified `length` with their upper‐case equivalent. The behavior is undefined unless `0 <= length` (if specified) and `string‐>size() <= INT_MAX` (if applicable).

== Synopsis

Declared in `<bdlb_string.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
void
toUpper(char* string);
----


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