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feat(userspace/libc): implementation <fenv.h> header

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FIXME: testing required!
Signed-off-by: EnderIce2 <enderice2@protonmail.com>
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EnderIce2
2025-03-05 03:23:19 +00:00
parent 784f3c3df9
commit 5e0a80fa1c
2 changed files with 252 additions and 0 deletions
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Userspace/libc/include/fenv.h Normal file
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/*
This file is part of Fennix C Library.
Fennix C Library is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix C Library. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef _FENV_H
#define _FENV_H
typedef int fenv_t;
typedef int fexcept_t;
#define FE_DIVBYZERO 0x04
#define FE_INEXACT 0x20
#define FE_INVALID 0x01
#define FE_OVERFLOW 0x08
#define FE_UNDERFLOW 0x10
#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
#define FE_DOWNWARD 0x400
#define FE_TONEAREST 0x000
#define FE_TOWARDZERO 0xC00
#define FE_UPWARD 0x800
#define FE_DFL_ENV ((const fenv_t *)-1)
int feclearexcept(int excepts);
int fegetenv(fenv_t *envp);
int fegetexceptflag(fexcept_t *flagp, int excepts);
int fegetround(void);
int feholdexcept(fenv_t *envp);
int feraiseexcept(int excepts);
int fesetenv(const fenv_t *envp);
int fesetexceptflag(const fexcept_t *flagp, int excepts);
int fesetround(int round);
int fetestexcept(int excepts);
int feupdateenv(const fenv_t *envp);
#endif // _FENV_H