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 *restrict ws, int n, FILE *restrict 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 null wide
17       character (L'\0').  It stops reading wide characters after it  has  en‐
18       countered  and stored a newline wide character.  It also stops when end
19       of stream 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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ATTRIBUTES

31       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
32       tributes(7).
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34       ┌────────────────────────────────────────────┬───────────────┬─────────┐
35       │Interface                                   │ Attribute     │ Value   │
36       ├────────────────────────────────────────────┼───────────────┼─────────┤
37       │fgetws()                                    │ Thread safety │ MT-Safe │
38       └────────────────────────────────────────────┴───────────────┴─────────┘
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CONFORMING TO

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

44       The  behavior  of fgetws() depends on the LC_CTYPE category of the cur‐
45       rent locale.
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47       In the absence of additional information passed to the  fopen(3)  call,
48       it is reasonable to expect that fgetws() will actually read a multibyte
49       string from the stream and then convert it to a wide-character string.
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51       This function is unreliable, because it does not permit to deal proper‐
52       ly with null wide characters that may be present in the input.
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SEE ALSO

55       fgetwc(3), unlocked_stdio(3)
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COLOPHON

58       This  page  is  part of release 5.13 of the Linux man-pages project.  A
59       description of the project, information about reporting bugs,  and  the
60       latest     version     of     this    page,    can    be    found    at
61       https://www.kernel.org/doc/man-pages/.
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65GNU                               2021-03-22                         FGETWS(3)
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