_IOFBF
(void) setvbuf(dumpf, inbuf, _IOFBF, insz);
(void) setvbuf(in, inbuf, _IOFBF, FBUFSIZE);
(void) setvbuf(out, outbuf, _IOFBF, FBUFSIZE);
(void) setvbuf(in, buf, _IOFBF, sz);
if (setvbuf(str->s_type.BF.s_fp, str->s_type.BF.s_vbuf, _IOFBF,
if (setvbuf(stdout, (char *)NULL, _IOFBF, MYBUFSIZ) != 0)
switch (iop->_flag & (_IOFBF | _IOLBF | _IONBF |
case _IOFBF | _IOWRT: /* okay to do full-buffered case */
(void) setvbuf(iop, abuf, _IOFBF, asize);
case _IOFBF:
#ifdef _IOFBF
(void) setvbuf(outfptr, (char *)NULL, _IOFBF, 0);
#ifndef _IOFBF
setvbuf(file, NULL, _IOFBF, 81920);
TEST_UNCHANGED(setvbuf(f, buffer, _IOFBF, BUFSIZ));
TEST_UNCHANGED(setvbuf(f, NULL, _IOFBF, 0));