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fgetws(3)


NAME

   fgetws - read a wide-character string from a FILE stream

SYNOPSIS

   #include <wchar.h>

   wchar_t *fgetws(wchar_t *ws, int n, FILE *stream);

DESCRIPTION

   The  fgetws() function is the wide-character equivalent of the fgets(3)
   function.  It reads a string of at most n-1 wide  characters  into  the
   wide-character array pointed to by ws, and adds a terminating null wide
   character (L'\0').  It stops  reading  wide  characters  after  it  has
   encountered  and  stored  a newline wide character.  It also stops when
   end of stream is reached.

   The programmer must ensure that there is  room  for  at  least  n  wide
   characters at ws.

   For a nonlocking counterpart, see unlocked_stdio(3).

RETURN VALUE

   The fgetws() function, if successful, returns ws.  If end of stream was
   already reached or if an error occurred, it returns NULL.

ATTRIBUTES

   For  an  explanation  of  the  terms  used   in   this   section,   see
   attributes(7).

   
   Interface  Attribute      Value   
   
   fgetws()   Thread safety  MT-Safe

CONFORMING TO

   POSIX.1-2001, POSIX.1-2008, C99.

NOTES

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

   In the absence of additional information passed to the  fopen(3)  call,
   it is reasonable to expect that fgetws() will actually read a multibyte
   string from the stream and then convert it to a wide-character string.

   This function is  unreliable,  because  it  does  not  permit  to  deal
   properly with null wide characters that may be present in the input.

SEE ALSO

   fgetwc(3), unlocked_stdio(3)

COLOPHON

   This  page  is  part of release 4.09 of the Linux man-pages project.  A
   description of the project, information about reporting bugs,  and  the
   latest     version     of     this    page,    can    be    found    at
   https://www.kernel.org/doc/man-pages/.



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