NT2_TEST_CASE_TPL ( atan_uint_convert__1_0, NT2_SIMD_UINT_CONVERT_TYPES)
{
using nt2::atan;
using nt2::tag::atan_;
using nt2::load;
using boost::simd::native;
using nt2::meta::cardinal_of;
typedef NT2_SIMD_DEFAULT_EXTENSION ext_t;
typedef typename nt2::meta::upgrade<T>::type u_t;
typedef native<T,ext_t> n_t;
typedef n_t vT;
typedef typename nt2::meta::as_integer<T>::type iT;
typedef native<iT,ext_t> ivT;
typedef typename nt2::meta::call<atan_(vT)>::type r_t;
typedef typename nt2::meta::call<atan_(T)>::type sr_t;
typedef typename nt2::meta::scalar_of<r_t>::type ssr_t;
double ulpd;
ulpd=0.0;
// specific values tests
NT2_TEST_ULP_EQUAL(atan(nt2::One<vT>())[0], nt2::Pi<sr_t>()/4, 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::Zero<vT>())[0], nt2::Zero<sr_t>(), 0.5);
} // end of test for uint_convert_
NT2_TEST_CASE_TPL ( atan_real__1_0, NT2_REAL_TYPES)
{
using nt2::atan;
using nt2::tag::atan_;
typedef typename nt2::meta::as_integer<T>::type iT;
typedef typename nt2::meta::call<atan_(T)>::type r_t;
typedef typename nt2::meta::upgrade<T>::type u_t;
typedef typename boost::result_of<nt2::meta::floating(T)>::type wished_r_t;
// return type conformity test
NT2_TEST( (boost::is_same < r_t, wished_r_t >::value) );
std::cout << std::endl;
double ulpd;
ulpd=0.0;
// specific values tests
NT2_TEST_ULP_EQUAL(atan(nt2::Half<T>()), 4.636476090008061e-01, 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::Inf<T>()), nt2::Pi<r_t>()/2, 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::Mhalf<T>()), -4.636476090008061e-01, 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::Minf<T>()), -nt2::Pi<r_t>()/2, 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::Mone<T>()), -nt2::Pi<r_t>()/4, 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::Nan<T>()), nt2::Nan<r_t>(), 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::One<T>()), nt2::Pi<r_t>()/4, 0.5);
NT2_TEST_ULP_EQUAL(atan(nt2::Zero<T>()), nt2::Zero<r_t>(), 0.5);
// random verifications
static const uint32_t NR = NT2_NB_RANDOM_TEST;
{
NT2_CREATE_BUF(tab_a0,T, NR, nt2::Mone<T>(), nt2::One<T>());
double ulp0, ulpd ; ulpd=ulp0=0.0;
T a0;
for (uint32_t j =0; j < NR; ++j )
{
std::cout << "for param "
<< " a0 = "<< u_t(a0 = tab_a0[j])
<< std::endl;
NT2_TEST_ULP_EQUAL( nt2::atan(a0),::cephes_atanl(a0),1.0);
ulp0=nt2::max(ulpd,ulp0);
}
std::cout << "max ulp found is: " << ulp0 << std::endl;
}
} // end of test for real_
NT2_TEST_CASE_TPL ( atan_real_convert__1_0, NT2_REAL_CONVERTIBLE_TYPES)
{
using nt2::atan;
using nt2::tag::atan_;
using nt2::load;
using nt2::simd::native;
using nt2::meta::cardinal_of;
typedef NT2_SIMD_DEFAULT_EXTENSION ext_t;
typedef typename nt2::meta::upgrade<T>::type u_t;
typedef native<T,ext_t> n_t;
typedef n_t vT;
typedef typename nt2::meta::as_integer<T>::type iT;
typedef native<iT,ext_t> ivT;
typedef typename nt2::meta::call<atan_(vT)>::type r_t;
typedef typename nt2::meta::call<atan_(T)>::type sr_t;
typedef typename nt2::meta::scalar_of<r_t>::type ssr_t;
// random verifications
static const uint32_t NR = NT2_NB_RANDOM_TEST;
{
NT2_CREATE_BUF(tab_a0,T, NR, nt2::Mone<T>(), nt2::One<T>());
double ulp0, ulpd ; ulpd=ulp0=0.0;
for(uint32_t j = 0; j < NR/cardinal_of<n_t>::value; j++)
{
vT a0 = load<vT>(&tab_a0[0],j);
r_t v = atan(a0);
for(int i = 0; i< cardinal_of<n_t>::value; i++)
{
int k = i+j*cardinal_of<n_t>::value;
NT2_TEST_ULP_EQUAL( v[i],ssr_t(nt2::atan(tab_a0[k])), 1.0);
ulp0 = nt2::max(ulpd,ulp0);
}
}
std::cout << "max ulp found is: " << ulp0 << std::endl;
}
} // end of test for real_convert_
