wctrans()

Define a wide-character mapping

Synopsis:

#include <wctype.h>

wctrans_t wctrans(const char *property);

Arguments:

property
The type of mapping; see below.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The wctrans() function determines a mapping rule for wide-character codes according to the category LC_CTYPE, particularly for use with towctrans() .

The following mappings are defined in all locales, although additional classes may be defined for LC_CTYPE:

  • tolower
  • toupper

Use setlocale() to modify the category LC_CTYPE.

Returns:

An object that you can use in a call to towctrans() , or 0 if the specified character mapping isn't valid for the current locale.

Classification:

ANSI, POSIX 1003.1

Safety:  
Cancellation point No
Interrupt handler Yes
Signal handler Yes
Thread Yes

Last modified: 2013-12-23

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