uc
uc EXPR
This function returns an uppercased version of EXPR (or $_ if EXPR is omitted). This is the internal function implementing the U escape in double-quoted strings. POSIX setlocale(3) settings are respected.
uc EXPR
This function returns an uppercased version of EXPR (or $_ if EXPR is omitted). This is the internal function implementing the U escape in double-quoted strings. POSIX setlocale(3) settings are respected.