fgetws man page on FreeBSD

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FGETWS(3)		 BSD Library Functions Manual		     FGETWS(3)

     fgetws — get a line of wide characters from a stream

     Standard C Library (libc, -lc)

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

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

     The fgetws() function reads at most one less than the number of charac‐
     ters specified by n from the given fp and stores them in the wide charac‐
     ter 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

     Upon successful completion, fgetws() returns ws.  If end-of-file occurs
     before any characters are read, fgetws() returns NULL and the buffer con‐
     tents 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.

     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).

     feof(3), ferror(3), fgets(3)

     The fgetws() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”).

BSD				August 6, 2002				   BSD

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