Files
KirkOS/user/include/mlibc/options/ansi/generic/fenv.cpp
T
kaguya 9a9b91c940 user: implement mlibc as the libc, finally.
It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>
2026-05-02 03:31:49 -04:00

44 lines
865 B
C++

#include <bits/ensure.h>
#include <fenv.h>
// The functions that are not in this file but are defined in the header
// are implemented like musl does in assembly.
extern "C" __attribute__((__visibility__("hidden"))) int __fesetround(int);
int fegetexceptflag(fexcept_t *, int) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
int feholdexcept(fenv_t *) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
int fesetexceptflag(const fexcept_t *, int) {
__ensure(!"Not implemented");
__builtin_unreachable();
}
int fesetround(int r) {
if (r != FE_TONEAREST
#ifdef FE_DOWNWARD
&& r != FE_DOWNWARD
#endif
#ifdef FE_UPWARD
&& r != FE_UPWARD
#endif
#ifdef FE_TOWARDZERO
&& r != FE_TOWARDZERO
#endif
)
return -1;
return __fesetround(r);
}
int feupdateenv(const fenv_t *) {
__ensure(!"Not implemented");
__builtin_unreachable();
}