diff options
Diffstat (limited to 'libc/sysdeps/linux/sh/bits')
| -rw-r--r-- | libc/sysdeps/linux/sh/bits/fenv.h | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/libc/sysdeps/linux/sh/bits/fenv.h b/libc/sysdeps/linux/sh/bits/fenv.h index 38c303ff2..349e7ddde 100644 --- a/libc/sysdeps/linux/sh/bits/fenv.h +++ b/libc/sysdeps/linux/sh/bits/fenv.h @@ -1,5 +1,4 @@ -/* Copyright (C) 1999, 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. +/* Copyright (C) 1999-2025 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 @@ -13,7 +12,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ #ifndef _FENV_H # error "Never use <bits/fenv.h> directly; include <fenv.h> instead." @@ -24,34 +23,39 @@ of the appropriate bits in the FPU control word. */ enum { - FE_INEXACT = 0x04, -#define FE_INEXACT FE_INEXACT - FE_UNDERFLOW = 0x08, -#define FE_UNDERFLOW FE_UNDERFLOW - FE_OVERFLOW = 0x10, -#define FE_OVERFLOW FE_OVERFLOW - FE_DIVBYZERO = 0x20, -#define FE_DIVBYZERO FE_DIVBYZERO - FE_INVALID = 0x40, -#define FE_INVALID FE_INVALID + FE_INEXACT = +#define FE_INEXACT 0x04 + FE_INEXACT, + FE_UNDERFLOW = +#define FE_UNDERFLOW 0x08 + FE_UNDERFLOW, + FE_OVERFLOW = +#define FE_OVERFLOW 0x10 + FE_OVERFLOW, + FE_DIVBYZERO = +#define FE_DIVBYZERO 0x20 + FE_DIVBYZERO, + FE_INVALID = +#define FE_INVALID 0x40 + FE_INVALID, }; #define FE_ALL_EXCEPT \ (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID) -/* The SH FPU supports all of the four defined rounding modes. We - use again the bit positions in the FPU control word as the values - for the appropriate macros. */ +/* The SH FPU supports two of the four defined rounding modes: round to nearest + and round to zero. We use again the bit positions in the FPU control word + as the values for the appropriate macros. */ enum { - FE_TONEAREST = 0x0, -#define FE_TONEAREST FE_TONEAREST - FE_TOWARDZERO = 0x1, -#define FE_TOWARDZERO FE_TOWARDZERO - FE_UPWARD = 0x2, -#define FE_UPWARD FE_UPWARD - FE_DOWNWARD = 0x3 -#define FE_DOWNWARD FE_DOWNWARD + __FE_UNDEFINED = -1, + + FE_TONEAREST = +#define FE_TONEAREST 0x0 + FE_TONEAREST, + FE_TOWARDZERO = +#define FE_TOWARDZERO 0x1 + FE_TOWARDZERO, }; @@ -68,4 +72,10 @@ typedef struct fenv_t; /* If the default argument is used we use this value. */ -#define FE_DFL_ENV ((fenv_t *) -1) +#define FE_DFL_ENV ((const fenv_t *) -1) + +/* Type representing floating-point control modes. */ +typedef unsigned int femode_t; + +/* Default floating-point control modes. */ +# define FE_DFL_MODE ((const femode_t *) -1L) |