1 /* Store current floating-point environment and clear exceptions 2 (soft-float edition). 3 Copyright (C) 2002-2022 Free Software Foundation, Inc. 4 This file is part of the GNU C Library. 5 6 The GNU C Library is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 The GNU C Library is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 You should have received a copy of the GNU Lesser General Public 17 License along with the GNU C Library. If not, see 18 <https://www.gnu.org/licenses/>. */ 19 20 #include "soft-fp.h" 21 #include "soft-supp.h" 22 23 int __feholdexcept(fenv_t * envp)24__feholdexcept (fenv_t *envp) 25 { 26 fenv_union_t u; 27 28 /* Get the current state. */ 29 __fegetenv (envp); 30 31 u.fenv = *envp; 32 /* Clear everything except the rounding mode. */ 33 u.l[0] &= 0x3; 34 /* Disable exceptions */ 35 u.l[1] = FE_ALL_EXCEPT; 36 37 /* Put the new state in effect. */ 38 __fesetenv (&u.fenv); 39 40 return 0; 41 } 42 libm_hidden_def (__feholdexcept) 43 weak_alias (__feholdexcept, feholdexcept) 44 libm_hidden_weak (feholdexcept) 45