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- FFLUSH(3) UNIX 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 C3.1591989 (``ANSI C'').
-
- BSD Experimental June 29, 1991 1
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