1 /* 2 Copyright (c) 1991, 1993 3 The Regents of the University of California. All rights reserved. 4 c) UNIX System Laboratories, Inc. 5 All or some portions of this file are derived from material licensed 6 to the University of California by American Telephone and Telegraph 7 Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 the permission of UNIX System Laboratories, Inc. 9 10 Redistribution and use in source and binary forms, with or without 11 modification, are permitted provided that the following conditions 12 are met: 13 1. Redistributions of source code must retain the above copyright 14 notice, this list of conditions and the following disclaimer. 15 2. Redistributions in binary form must reproduce the above copyright 16 notice, this list of conditions and the following disclaimer in the 17 documentation and/or other materials provided with the distribution. 18 3. Neither the name of the University nor the names of its contributors 19 may be used to endorse or promote products derived from this software 20 without specific prior written permission. 21 22 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 SUCH DAMAGE. 33 */ 34 #ifndef _IEEEFP_H_ 35 #define _IEEEFP_H_ 36 37 #include <sys/cdefs.h> 38 #include <machine/ieeefp.h> 39 #include <sys/features.h> 40 41 _BEGIN_STD_C 42 43 #if __BSD_VISIBLE 44 45 /* FLOATING ROUNDING */ 46 47 typedef int fp_rnd; 48 #define FP_RN 0 /* Round to nearest */ 49 #define FP_RM 1 /* Round down */ 50 #define FP_RP 2 /* Round up */ 51 #define FP_RZ 3 /* Round to zero (trunate) */ 52 53 fp_rnd fpgetround (void); 54 fp_rnd fpsetround (fp_rnd); 55 56 /* EXCEPTIONS */ 57 58 typedef int fp_except; 59 #define FP_X_INV 0x10 /* Invalid operation */ 60 #define FP_X_DX 0x80 /* Divide by zero */ 61 #define FP_X_OFL 0x04 /* Overflow exception */ 62 #define FP_X_UFL 0x02 /* Underflow exception */ 63 #define FP_X_IMP 0x01 /* imprecise exception */ 64 65 fp_except fpgetmask (void); 66 fp_except fpsetmask (fp_except); 67 fp_except fpgetsticky (void); 68 fp_except fpsetsticky (fp_except); 69 70 /* INTEGER ROUNDING */ 71 72 typedef int fp_rdi; 73 #define FP_RDI_TOZ 0 /* Round to Zero */ 74 #define FP_RDI_RD 1 /* Follow float mode */ 75 76 fp_rdi fpgetroundtoi (void); 77 fp_rdi fpsetroundtoi (fp_rdi); 78 79 #endif /* __BSD_VISIBLE */ 80 81 _END_STD_C 82 83 #endif /* _IEEEFP_H_ */ 84
