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FWIDE(3)              DragonFly Library Functions Manual              FWIDE(3)


NAME

     fwide -- get/set orientation of a stream


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

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

     int
     fwide(FILE *stream, int mode);


DESCRIPTION

     The fwide() function determines the orientation of the stream pointed at
     by stream.

     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.


RETURN VALUES

     fwide() 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 ALSO

     ferror(3), fgetc(3), fgetwc(3), fopen(3), fputc(3), fputwc(3),
     freopen(3), stdio(3)


STANDARDS

     The fwide() function conforms to ISO/IEC 9899:1999 (``ISO C99'').

DragonFly 3.5                  October 24, 2001                  DragonFly 3.5

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