5da4668a0d
761b7c05e mcl: Build as PIC 4aad0b5e6 mcl/bit: Simplify sign_extend 0733afd2a mcl: Fix bug in non-template mcl::bit::ones e26df0587 mcl: bit_field: Fix incorrect argument order in replicate_element git-subtree-dir: externals/mcl git-subtree-split: 761b7c05e80d789acf572b52175b852c6509e753
41 lines
1.5 KiB
C++
41 lines
1.5 KiB
C++
// This file is part of the mcl project.
|
|
// Copyright (c) 2022 merryhime
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
#include <array>
|
|
#include <tuple>
|
|
|
|
#include <catch2/catch.hpp>
|
|
#include <mcl/bit/bit_field.hpp>
|
|
#include <mcl/stdint.hpp>
|
|
|
|
TEST_CASE("mcl::bit::ones", "[bit]") {
|
|
const std::array cases{
|
|
std::make_tuple<size_t, u8>(0, 0x00),
|
|
std::make_tuple<size_t, u8>(1, 0x01),
|
|
std::make_tuple<size_t, u8>(2, 0x03),
|
|
std::make_tuple<size_t, u8>(3, 0x07),
|
|
std::make_tuple<size_t, u8>(4, 0x0f),
|
|
std::make_tuple<size_t, u8>(5, 0x1f),
|
|
std::make_tuple<size_t, u8>(6, 0x3f),
|
|
std::make_tuple<size_t, u8>(7, 0x7f),
|
|
std::make_tuple<size_t, u8>(8, 0xff),
|
|
};
|
|
|
|
for (const auto [count, expected] : cases) {
|
|
REQUIRE(mcl::bit::ones<u8>(count) == expected);
|
|
REQUIRE(mcl::bit::ones<u16>(count) == expected);
|
|
REQUIRE(mcl::bit::ones<u32>(count) == expected);
|
|
REQUIRE(mcl::bit::ones<u64>(count) == expected);
|
|
REQUIRE(mcl::bit::ones<uptr>(count) == expected);
|
|
REQUIRE(mcl::bit::ones<size_t>(count) == expected);
|
|
}
|
|
}
|
|
|
|
static_assert(mcl::bit::ones<3, u8>() == 0x7);
|
|
static_assert(mcl::bit::ones<15, u16>() == 0x7fff);
|
|
static_assert(mcl::bit::ones<16, u16>() == 0xffff);
|
|
static_assert(mcl::bit::ones<31, u32>() == 0x7fff'ffff);
|
|
static_assert(mcl::bit::ones<32, u32>() == 0xffff'ffff);
|
|
static_assert(mcl::bit::ones<63, u64>() == 0x7fff'ffff'ffff'ffff);
|
|
static_assert(mcl::bit::ones<64, u64>() == 0xffff'ffff'ffff'ffff);
|