TOWUPPER(3) |
FreeBSD Library Functions Manual |
TOWUPPER(3) |
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.
STANDARDS
The
towupper() function conforms to ISO/IEC 9899:1999 (“ISO C99”).