4.4BSD/usr/share/man/cat3/fpurge.0

Compare this file to the similar file:
Show the results in this format:
FFLUSH(3)                   BSD Programmer's Manual                  FFLUSH(3)

NNAAMMEE
     fffflluusshh, ffppuurrggee - flush a stream

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<ssttddiioo..hh>>

     _i_n_t
     fffflluusshh(_F_I_L_E _*_s_t_r_e_a_m);

     _i_n_t
     ffppuurrggee(_F_I_L_E _*_s_t_r_e_a_m);

DDEESSCCRRIIPPTTIIOONN
     The function fffflluusshh() forces a write of all buffered data for the given
     output or update _s_t_r_e_a_m via the stream's underlying write function.  The
     open status of the stream is unaffected.

     If the _s_t_r_e_a_m argument is NULL, fffflluusshh() flushes _a_l_l open output streams.

     The function ffppuurrggee() erases any input or output buffered in the given
     _s_t_r_e_a_m. For output streams this discards any unwritten output.  For input
     streams this discards any input read from the underlying object but not
     yet obtained via getc(3);  this includes any text pushed back via ungetc.


RREETTUURRNN VVAALLUUEESS
     Upon successful completion 0 is returned.  Otherwise, EOF is returned and
     the global variable _e_r_r_n_o is set to indicate the error.

EERRRROORRSS
     [EBADF]  _S_t_r_e_a_m is not an open stream, or, in the case of fffflluusshh(), not a
              stream open for writing.

     The function fffflluusshh() may also fail and set _e_r_r_n_o for any of the errors
     specified for the routine write(2).

SSEEEE AALLSSOO
     write(2),  fopen(3),  fclose(3),  setbuf(3)

SSTTAANNDDAARRDDSS
     The fffflluusshh() function conforms to ANSI C X3.159-1989 (``ANSI C '').

4.4BSD                           June 4, 1993                                1