fgetws(3)

1FGETWS(3)                  Linux Programmer's Manual                 FGETWS(3)
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NAME

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

9       #include <wchar.h>
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11       wchar_t *fgetws(wchar_t *ws, int n, FILE *stream);
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DESCRIPTION

14       The  fgetws() function is the wide-character equivalent of the fgets(3)
15       function.  It reads a string of at most n-1 wide  characters  into  the
16       wide-character  array  pointed  to  by ws, and adds a terminating L'\0'
17       character.  It stops reading wide characters after it  has  encountered
18       and  stored a newline wide character.  It also stops when end of stream
19       is reached.
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21       The programmer must ensure that there is room for at least n wide char‐
22       acters at ws.
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24       For a nonlocking counterpart, see unlocked_stdio(3).
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RETURN VALUE

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

31       C99, POSIX.1-2001.
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NOTES

34       The behavior of fgetws() depends on the LC_CTYPE category of  the  cur‐
35       rent locale.
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37       In  the  absence of additional information passed to the fopen(3) call,
38       it is reasonable to expect that fgetws() will actually read a multibyte
39       string from the stream and then convert it to a wide-character string.
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41       This  function  is unreliable, because it does not permit to deal prop‐
42       erly with null wide characters that may be present in the input.
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COLOPHON

48       This page is part of release 3.25 of the Linux  man-pages  project.   A
49       description  of  the project, and information about reporting bugs, can
50       be found at http://www.kernel.org/doc/man-pages/.
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54GNU                               1999-07-25                         FGETWS(3)