FWIDE(3) BSD Library Functions Manual FWIDE(3)NAMEfwide — get/set orientation of a stream
Standard C Library (libc, -lc)
fwide(FILE *stream, int mode);
The fwide() function determines the orientation of the stream pointed at
If the orientation of stream has already been determined, fwide() leaves
it unchanged. Otherwise, fwide() sets the orientation of stream accord‐
ing to mode.
If mode is less than zero, stream is set to byte-oriented. If it is
greater than zero, stream is set to wide-oriented. Otherwise, mode is
zero, and stream is unchanged.
The fwide() function returns a value according to orientation after the
call of fwide(); a value less than zero if byte-oriented, a value greater
than zero if wide-oriented, and zero if the stream has no orientation.
SEE ALSOferror(3), fgetc(3), fgetwc(3), fopen(3), fputc(3), fputwc(3),
The fwide() function conforms to ISO/IEC 9899:1999 (“ISO C99”).
BSD October 24, 2001 BSD