FGETWS(3) BSD Library Functions Manual FGETWS(3)NAMEfgetws — get a line of wide characters from a stream
Standard C Library (libc, -lc)
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).
SEE ALSOfeof(3), ferror(3), fgets(3)STANDARDS
The fgetws() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”).
BSD August 6, 2002 BSD