_IOLBF
(void)setvbuf(cshin, NULL, _IOLBF, 0);
(void)setvbuf(cshout, NULL, _IOLBF, 0);
(void)setvbuf(csherr, NULL, _IOLBF, 0);
return setvbuf(fp, NULL, _IOLBF, (size_t)0);
if (mode == _IOLBF)
if ((mode != _IOFBF && mode != _IOLBF) || (int)size < 0)
(void)setvbuf(_cursesi_screen->outfd, NULL, _IOLBF, 0);
(void)setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
(void)setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
case 1: return _IOLBF;
{ "IOLBF", _IOLBF },
(void)setvbuf(stdout, NULL, _IOLBF, 0);
(void)setvbuf(stderr, NULL, _IOLBF, 0);
setvbuf(ttyout, NULL, _IOLBF, 0);
#ifdef _IOLBF
setvbuf(stdout, NULL, _IOLBF, 0);
setvbuf(stdout, NULL, _IOLBF, 0);
#ifdef _IOLBF
c = setvbuf(stdout, NULL, _IOLBF, 0);
#define setlinebuf(s) setvbuf(s, NULL, _IOLBF, 0)
setvbuf(stdout, NULL, _IOLBF, 0);
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);