1 /* ieee-utils/fp-freebsd.c
3 * Copyright (C) 2000 Vladimir Kushnir
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or (at
8 * your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 #include <gsl/gsl_ieee_utils.h>
22 #include <gsl/gsl_errno.h>
25 gsl_ieee_set_mode (int precision, int rounding, int exception_mask)
28 fp_except_t mode = 0 ;
33 case GSL_IEEE_SINGLE_PRECISION:
37 case GSL_IEEE_DOUBLE_PRECISION:
41 case GSL_IEEE_EXTENDED_PRECISION:
49 case GSL_IEEE_ROUND_TO_NEAREST:
53 case GSL_IEEE_ROUND_DOWN:
57 case GSL_IEEE_ROUND_UP:
61 case GSL_IEEE_ROUND_TO_ZERO:
70 /* Turn on all the exceptions apart from 'inexact' */
72 mode = FP_X_INV | FP_X_DNML | FP_X_DZ | FP_X_OFL | FP_X_UFL ;
74 if (exception_mask & GSL_IEEE_MASK_INVALID)
77 if (exception_mask & GSL_IEEE_MASK_DENORMALIZED)
80 if (exception_mask & GSL_IEEE_MASK_DIVISION_BY_ZERO)
83 if (exception_mask & GSL_IEEE_MASK_OVERFLOW)
86 if (exception_mask & GSL_IEEE_MASK_UNDERFLOW)
89 if (exception_mask & GSL_IEEE_TRAP_INEXACT)