diff options
Diffstat (limited to 'libm/arm/fsetexcptflg.c')
| -rw-r--r-- | libm/arm/fsetexcptflg.c | 44 | 
1 files changed, 44 insertions, 0 deletions
| diff --git a/libm/arm/fsetexcptflg.c b/libm/arm/fsetexcptflg.c new file mode 100644 index 000000000..343b33af9 --- /dev/null +++ b/libm/arm/fsetexcptflg.c @@ -0,0 +1,44 @@ +/* Set floating-point environment exception handling. +   Copyright (C) 1997-2025 Free Software Foundation, Inc. + +   The GNU C Library is free software; you can redistribute it and/or +   modify it under the terms of the GNU Lesser General Public +   License as published by the Free Software Foundation; either +   version 2.1 of the License, or (at your option) any later version. + +   The GNU C Library is distributed in the hope that it will be useful, +   but WITHOUT ANY WARRANTY; without even the implied warranty of +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU +   Lesser General Public License for more details. + +   You should have received a copy of the GNU Lesser General Public +   License along with the GNU C Library.  If not, see +   <https://www.gnu.org/licenses/>.  */ + +#include <fenv.h> +#include <fpu_control.h> +#include "arm-features.h" + + +int +fesetexceptflag (const fexcept_t *flagp, int excepts) +{ +  fpu_control_t fpscr, new_fpscr; + +  /* Fail if a VFP unit isn't present unless nothing needs to be done.  */ +  if (!ARM_HAVE_VFP) +    return (excepts != 0); + +  _FPU_GETCW (fpscr); +  excepts &= FE_ALL_EXCEPT; + +  /* Set the desired exception mask.  */ +  new_fpscr = fpscr & ~excepts; +  new_fpscr |= *flagp & excepts; + +  /* Write new exception flags if changed.  */ +  if (new_fpscr != fpscr) +    _FPU_SETCW (new_fpscr); + +  return 0; +} | 
