towctrans(3) [netbsd man page]

TOWCTRANS(3)						   BSD Library Functions Manual 					      TOWCTRANS(3)

NAME

     towctrans -- convert a wide character with a specified map

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <wctype.h>

     wint_t
     towctrans(wint_t wc, wctrans_t charmap);

DESCRIPTION

     The towctrans() function converts a wide character wc with a character mapping charmap.

     The behaviour of towctrans() is undefined if the towctrans() function is called with an invalid charmap (changes of LC_CTYPE category invali-
     date charmap) or invalid wide character wc.

     The behaviour of towctrans() is affected by the LC_CTYPE category of the current locale.

RETURN VALUES

     towctrans() returns the resulting character of the conversion.

ERRORS

     No errors are defined.

SEE ALSO

     iswctype(3), setlocale(3), wctrans(3), wctype(3)

STANDARDS

     The towctrans() function conforms to ISO/IEC 9899/AMD1:1995 (``ISO C90, Amendment 1'').

BSD
								   March 4, 2003							       BSD

WCTRANS(3)						   BSD Library Functions Manual 						WCTRANS(3)

NAME

     towctrans, wctrans -- wide character mapping functions

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <wctype.h>

     wint_t
     towctrans(wint_t wc, wctrans_t desc);

     wctrans_t
     wctrans(const char *charclass);

DESCRIPTION

     The wctrans() function returns a value of type wctrans_t which represents the requested wide character mapping operation and may be used as
     the second argument for calls to towctrans().

     The following character mapping names are recognised:

	   tolower    toupper

     The towctrans() function transliterates the wide character wc according to the mapping described by desc.

RETURN VALUES

     The towctrans() function returns the transliterated character if successful, otherwise it returns the character unchanged and sets errno.

     The wctrans() function returns non-zero if successful, otherwise it returns zero and sets errno.

EXAMPLES

     Reimplement towupper() in terms of towctrans() and wctrans():

	   wint_t
	   mytowupper(wint_t wc)
	   {
		   return (towctrans(wc, wctrans("toupper")));
	   }

ERRORS

     The towctrans() function will fail if:

     [EINVAL]		The supplied desc argument is invalid.

     The wctrans() function will fail if:

     [EINVAL]		The requested mapping name is invalid.

SEE ALSO

     tolower(3), toupper(3), wctype(3)

STANDARDS

     The towctrans() and wctrans() functions conform to IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY

     The towctrans() and wctrans() functions first appeared in FreeBSD 5.0.

BSD
								  October 3, 2002							       BSD