FGETWS(3)              FreeBSD Library Functions Manual              FGETWS(3)

NAME
     fgetws - get a line of wide characters from a stream

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <stdio.h>
     #include <wchar.h>

     wchar_t *
     fgetws(wchar_t * restrict ws, int n, FILE * restrict fp);

DESCRIPTION
     The fgetws() function reads at most one less than the number of
     characters specified by n from the given fp and stores them in the wide
     character string ws.  Reading stops when a newline character is found, at
     end-of-file or error.  The newline, if any, is retained.  If any
     characters are read and there is no error, a `\0' character is appended
     to end the string.

RETURN VALUES
     Upon successful completion, fgetws() returns ws.  If end-of-file occurs
     before any characters are read, fgetws() returns NULL and the buffer
     contents remain unchanged.  If an error occurs, fgetws() returns NULL and
     the buffer contents are indeterminate.  The fgetws() function does not
     distinguish between end-of-file and error, and callers must use feof(3)
     and ferror(3) to determine which occurred.

ERRORS
     The fgetws() function will fail if:

     [EBADF]            The given fp argument is not a readable stream.

     [EILSEQ]           The data obtained from the input stream does not form
                        a valid multibyte character.

     The function fgetws() may also fail and set errno for any of the errors
     specified for the routines fflush(3), fstat(2), read(2), or malloc(3).

SEE ALSO
     feof(3), ferror(3), fgets(3)

STANDARDS
     The fgetws() function conforms to IEEE Std 1003.1-2001 ("POSIX.1").

FreeBSD 13.1-RELEASE-p6         August 6, 2002         FreeBSD 13.1-RELEASE-p6