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TOWLOWER(3) Library Functions Manual TOWLOWER(3) NAME towlower, towupper - wide character case letter conversion utilities LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <wctype.h> wint_t towlower(wint_t wc); wint_t towupper(wint_t wc); DESCRIPTION The towlower() function converts an upper-case wide character to the corresponding lower-case letter. The towupper() function converts an lower-case wide character to the corresponding upper-case letter. RETURN VALUES If the argument is an upper/lower-case letter, the tolower() function returns the corresponding counterpart if there is one; otherwise the argument is returned unchanged. SEE ALSO tolower(3), toupper(3) STANDARDS The functions conform to ISO/IEC 9899:1999 ("ISO C99"). NetBSD 10.99 December 22, 2000 NetBSD 10.99