1 /* $NetBSD: flt_rounds.c,v 1.1 2025/10/04 21:03:16 nat Exp $ */ 2 3 /* 4 * Written by J.T. Conklin, Apr 11, 1995 5 * Public domain. 6 */ 7 8 #include <sys/cdefs.h> 9 #if defined(LIBC_SCCS) && !defined(lint) 10 __RCSID("$NetBSD: flt_rounds.c,v 1.1 2025/10/04 21:03:16 nat Exp $"); 11 #endif /* LIBC_SCCS and not lint */ 12 13 #include "namespace.h" 14 #include <machine/float.h> 15 #include <ieeefp.h> 16 17 static const int map[] = { 18 1, /* round to nearest */ 19 0, /* round to zero */ 20 #ifdef __m68k__ 21 3, /* round to positive infinity */ 22 2 /* round to negative infinity */ 23 #else 24 2, /* round to positive infinity */ 25 3 /* round to negative infinity */ 26 #endif 27 }; 28 29 int 30 __flt_rounds(void) 31 { 32 return map[fpgetround()]; 33 } 34