diff options
Diffstat (limited to 'libm/arm/fegetround.c')
| -rw-r--r-- | libm/arm/fegetround.c | 42 | 
1 files changed, 42 insertions, 0 deletions
| diff --git a/libm/arm/fegetround.c b/libm/arm/fegetround.c new file mode 100644 index 000000000..2f9320491 --- /dev/null +++ b/libm/arm/fegetround.c @@ -0,0 +1,42 @@ +/* Return current rounding direction. +   Copyright (C) 2004-2025 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 "arm-features.h" +#include <fenv.h> +#include <fpu_control.h> + +/* Return the floating-point rounding mode.  */ + +static inline int +get_rounding_mode (void) +{ +  fpu_control_t fpscr; + +  /* FE_TONEAREST is the only supported rounding mode +     if a VFP unit isn't present.  */ +  if (!ARM_HAVE_VFP) +    return FE_TONEAREST; + +  _FPU_GETCW (fpscr); +  return fpscr & _FPU_MASK_RM; +} + +int +fegetround (void) +{ +  return get_rounding_mode (); +} | 
