FGETWS(3) Linux Programmer's Manual FGETWS(3)
fgetws - read a wide-character string from a FILE stream
wchar_t *fgetws(wchar_t *ws, int n, FILE *stream);
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 char-
acters at ws.
For a nonlocking counterpart, see unlocked_stdio(3).
The fgetws() function, if successful, returns ws. If end of stream was
already reached or if an error occurred, it returns NULL.
For an explanation of the terms used in this section, see
|Interface | Attribute | Value |
|fgetws() | Thread safety | MT-Safe |
POSIX.1-2001, POSIX.1-2008, C99.
The behavior of fgetws() depends on the LC_CTYPE category of the cur-
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 prop-
erly with null wide characters that may be present in the input.
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