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TOWLOWER(3) |
Library Functions Manual |
TOWLOWER(3) |
NAME
towlower — 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.
STANDARDS
The functions conform to ISO/IEC 9899:1999 (“ISO C99”).
