NAME
towupper – lower case to upper case letter conversion (wide character version)
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wctype.h>
wint_t
towupper(wint_t wc);
DESCRIPTION
The towupper() function converts a lower-case letter to the corresponding upper-case letter.
RETURN VALUES
If the argument is a lower-case letter, the towupper() function returns the corresponding upper-case letter if there is one; otherwise the argument is returned unchanged.
SEE ALSO
STANDARDS
The towupper() function conforms to ISO/IEC 9899:1999 (“ISO C99”).