BAN/LibC: Move ldexp, scalbn to libc
They are now implemented with float decompostion to modify the exponent bits directly
This commit is contained in:
@@ -309,36 +309,6 @@ namespace BAN::Math
|
||||
return exp2<T>(y * log2<T>(x));
|
||||
}
|
||||
|
||||
template<floating_point T>
|
||||
inline constexpr T scalbn(T x, int n)
|
||||
{
|
||||
asm("fscale" : "+t"(x) : "u"(static_cast<T>(n)));
|
||||
return x;
|
||||
}
|
||||
|
||||
template<floating_point T>
|
||||
inline constexpr T ldexp(T x, int y)
|
||||
{
|
||||
const bool exp_sign = y < 0;
|
||||
if (exp_sign)
|
||||
y = -y;
|
||||
|
||||
T exp = (T)1.0;
|
||||
T mult = (T)2.0;
|
||||
while (y)
|
||||
{
|
||||
if (y & 1)
|
||||
exp *= mult;
|
||||
mult *= mult;
|
||||
y >>= 1;
|
||||
}
|
||||
|
||||
if (exp_sign)
|
||||
exp = (T)1.0 / exp;
|
||||
|
||||
return x * exp;
|
||||
}
|
||||
|
||||
template<floating_point T>
|
||||
inline constexpr T sqrt(T x)
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user