constants.cpp

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#include "cutlass_unit_test.h"
#include <cutlass/trace.h>

#include <cute/numeric/integral_constant.hpp>
#include <cute/algorithm/tuple_algorithms.hpp>

TEST(CuTe_core, MakeIntegerSequence) {
  cute::for_each(cute::make_integer_sequence<uint32_t, 13>{}, [](auto c) {
    using c_type = decltype(c);
    constexpr auto c_value = c_type::value;
    using expected_type = cute::integral_constant<uint32_t, c_value>;
    static_assert(cute::is_same_v<c_type, expected_type>);
    static_assert(cute::is_same_v<typename c_type::value_type, uint32_t>);
    static_assert(cute::is_constant<c_value, c_type>::value);
    static_assert(cute::is_constant<0, decltype(c * cute::Int<0>{})>::value);
    static_assert(cute::is_constant<2*c_value, decltype(c * cute::Int<2>{})>::value);
  });

  cute::for_each(cute::make_integer_sequence<int64_t, 17>{}, [](auto c) {
    using c_type = decltype(c);
    constexpr auto c_value = c_type::value;
    using expected_type = cute::integral_constant<int64_t, c_value>;
    static_assert(cute::is_same_v<c_type, expected_type>);
    static_assert(cute::is_same_v<typename c_type::value_type, int64_t>);
    static_assert(cute::is_constant<c_value, c_type>::value);
    static_assert(cute::is_constant<0, decltype(c * cute::Int<0>{})>::value);
    static_assert(cute::is_constant<2*c_value, decltype(c * cute::Int<2>{})>::value);
  });
}