Function asin_impl_float

src/fl/math/math.cpp.hpp:544–555

}

float asin_impl_float(float value) {
#if FL_MATH_USE_LIBM
    return ::asinf(value);
#else
    const float kPiHalf = 1.57079632679489661923f;
    if (value >=  1.0f) return  kPiHalf;
    if (value <= -1.0f) return -kPiHalf;
    const float denom = detail::sqrt_newton_<float>(1.0f - value * value);
    if (denom == 0.0f) return value > 0.0f ? kPiHalf : -kPiHalf;
    return detail::atan_full_<float>(value / denom);
#endif
}

double asin_impl_double(double value) {
#if FL_MATH_USE_LIBM