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BTOWC(3)                   Linux Programmer's Manual                  BTOWC(3)



NAME
       btowc - convert single byte to wide character

SYNOPSIS
       #include <wchar.h>

       wint_t btowc(int c);

DESCRIPTION
       The btowc() function converts c, interpreted as a multibyte sequence of length 1, starting in the initial shift
       state, to a wide character and returns it.  If c is EOF or not a valid multibyte  sequence  of  length  1,  the
       btowc() function returns WEOF.

RETURN VALUE
       The  btowc()  function returns the wide character converted from the single byte c.  If c is EOF or not a valid
       multibyte sequence of length 1, it returns WEOF.

CONFORMING TO
       C99, POSIX.1-2001.

NOTES
       The behavior of btowc() depends on the LC_CTYPE category of the current locale.

       This function should never be used.  It does not work for encodings which have state, and unnecessarily  treats
       single bytes differently from multibyte sequences.  Use the function mbtowc() instead.

SEE ALSO
       wctob(3), mbtowc(3)

COLOPHON
       This  page  is part of release 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



GNU                               2009-02-04                          BTOWC(3)