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Even more M17 library code cleanup

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This commit is contained in:
f4exb 2022-07-20 09:57:59 +02:00
parent a7392ab56f
commit 3515f6a7ee
9 changed files with 60 additions and 40 deletions
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1
modemm17/Convolution.h
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@ -2,7 +2,6 @@
#pragma once
#include <bit>
#include <cstdint>
#include <cstddef>

1
modemm17/Golay24.h
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@ -4,7 +4,6 @@
#pragma once
#include <array>
#include <bit>
#include <cstdint>
#include <algorithm>
#include <utility>

1
modemm17/LinkSetupFrame.h
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@ -5,7 +5,6 @@
#include <array>
#include <cstdint>
#include <cmath>
// #include <string_view> // Don't have std::span in C++17.
#include <stdexcept>
#include <algorithm>

1
modemm17/M17Demodulator.h
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@ -15,7 +15,6 @@
#include <algorithm>
#include <array>
#include <functional>
#include <optional>
#include <tuple>
#include "export.h"

1
modemm17/M17Synchronizer.h
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@ -2,7 +2,6 @@
#pragma once
#include <bit>
#include <cstdint>
#include "Util.h"

1
modemm17/SymbolEvm.h
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@ -7,7 +7,6 @@
#include <array>
#include <algorithm>
#include <numeric>
#include <optional>
#include <tuple>
namespace modemm17

88
modemm17/Util.h
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@ -18,18 +18,18 @@ namespace modemm17
namespace detail {
template<std::size_t...Is, class Tuple>
constexpr std::bitset<sizeof...(Is)> make_bitset(std::index_sequence<Is...>, Tuple&& tuple)
{
constexpr auto size = sizeof...(Is);
std::bitset<size> result;
using expand = int[];
for (size_t i = 0; i != size; ++i)
{
void(expand {0, result[Is] = std::get<Is>(tuple)...});
}
return result;
}
// template<std::size_t...Is, class Tuple>
// constexpr std::bitset<sizeof...(Is)> make_bitset(std::index_sequence<Is...>, Tuple&& tuple)
// {
// constexpr auto size = sizeof...(Is);
// std::bitset<size> result;
// using expand = int[];
// for (size_t i = 0; i != size; ++i)
// {
// void(expand {0, result[Is] = std::get<Is>(tuple)...});
// }
// return result;
// }
/**
* This is the max value for the LLR based on size N.
@ -104,12 +104,12 @@ constexpr std::array<std::tuple<float, std::tuple<int8_t, int8_t>>, llr_size<LLR
}
template<class...Bools>
constexpr auto make_bitset(Bools&&...bools)
{
return detail::make_bitset(std::make_index_sequence<sizeof...(Bools)>(),
std::make_tuple(bool(bools)...));
}
// template<class...Bools>
// constexpr auto make_bitset(Bools&&...bools)
// {
// return detail::make_bitset(std::make_index_sequence<sizeof...(Bools)>(),
// std::make_tuple(bool(bools)...));
// }
inline int from_4fsk(int symbol)
{
@ -144,7 +144,10 @@ auto llr(float sample)
}
template <size_t M, typename T, size_t N, typename U, size_t IN>
auto depunctured(std::array<T, N> puncture_matrix, std::array<U, IN> in)
std::array<U, M> depunctured(
std::array<T, N> puncture_matrix,
std::array<U, IN> in
)
{
static_assert(M % N == 0, "M must be an integer multiple of N");
@ -167,8 +170,11 @@ auto depunctured(std::array<T, N> puncture_matrix, std::array<U, IN> in)
}
template <size_t IN, size_t OUT, size_t P>
size_t depuncture(const std::array<int8_t, IN>& in,
std::array<int8_t, OUT>& out, const std::array<int8_t, P>& p)
size_t depuncture(
const std::array<int8_t, IN>& in,
std::array<int8_t, OUT>& out,
const std::array<int8_t, P>& p
)
{
size_t index = 0;
size_t pindex = 0;
@ -191,8 +197,11 @@ size_t depuncture(const std::array<int8_t, IN>& in,
template <typename T, size_t IN, typename U, size_t OUT, size_t P>
size_t puncture(const std::array<T, IN>& in,
std::array<U, OUT>& out, const std::array<int8_t, P>& p)
size_t puncture(
const std::array<T, IN>& in,
std::array<U, OUT>& out,
const std::array<int8_t, P>& p
)
{
size_t index = 0;
size_t pindex = 0;
@ -211,7 +220,10 @@ size_t puncture(const std::array<T, IN>& in,
}
template <size_t N>
constexpr bool get_bit_index(const std::array<uint8_t, N>& input, size_t index)
constexpr bool get_bit_index(
const std::array<uint8_t, N>& input,
size_t index
)
{
auto byte_index = index >> 3;
assert(byte_index < N);
@ -221,7 +233,10 @@ constexpr bool get_bit_index(const std::array<uint8_t, N>& input, size_t index)
}
template <size_t N>
void set_bit_index(std::array<uint8_t, N>& input, size_t index)
void set_bit_index(
std::array<uint8_t, N>& input,
size_t index
)
{
auto byte_index = index >> 3;
assert(byte_index < N);
@ -230,7 +245,10 @@ void set_bit_index(std::array<uint8_t, N>& input, size_t index)
}
template <size_t N>
void reset_bit_index(std::array<uint8_t, N>& input, size_t index)
void reset_bit_index(
std::array<uint8_t, N>& input,
size_t index
)
{
auto byte_index = index >> 3;
assert(byte_index < N);
@ -239,7 +257,11 @@ void reset_bit_index(std::array<uint8_t, N>& input, size_t index)
}
template <size_t N>
void assign_bit_index(std::array<uint8_t, N>& input, size_t index, bool value)
void assign_bit_index(
std::array<uint8_t, N>& input,
size_t index,
bool value
)
{
if (value) set_bit_index(input, index);
else reset_bit_index(input, index);
@ -247,8 +269,11 @@ void assign_bit_index(std::array<uint8_t, N>& input, size_t index, bool value)
template <size_t IN, size_t OUT, size_t P>
size_t puncture_bytes(const std::array<uint8_t, IN>& in,
std::array<uint8_t, OUT>& out, const std::array<int8_t, P>& p)
size_t puncture_bytes(
const std::array<uint8_t, IN>& in,
std::array<uint8_t, OUT>& out,
const std::array<int8_t, P>& p
)
{
size_t index = 0;
size_t pindex = 0;
@ -298,7 +323,10 @@ constexpr auto to_byte_array(std::array<T, N> in)
}
template <typename T, size_t N>
constexpr void to_byte_array(std::array<T, N> in, std::array<uint8_t, (N + 7) / 8>& out)
constexpr void to_byte_array(
std::array<T, N> in,
std::array<uint8_t, (N + 7) / 8>& out
)
{
size_t i = 0;
size_t b = 0;

2
modemm17/Viterbi.h
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@ -160,7 +160,7 @@ struct Viterbi
* @return path metric for estimating BER.
*/
template <size_t IN, size_t OUT>
size_t decode(std::array<int8_t, IN> const& in, std::array<uint8_t, OUT>& out)
size_t decode(const std::array<int8_t, IN>& in, std::array<uint8_t, OUT>& out)
{
static_assert(sizeof(history_) >= IN / 2, "Invalid size");

4
modemm17/ax25_frame.h
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@ -10,7 +10,6 @@
#include <iomanip>
#include <iostream>
#include <iterator>
#include <optional>
#include <sstream>
#include <stdexcept>
#include <string>
@ -168,8 +167,7 @@ private:
{
std::string repeater = frame.substr(index, ADDRESS_LENGTH);
index += ADDRESS_LENGTH;
more = fixup_address(repeater)
and (index + ADDRESS_LENGTH) < frame.length();
more = fixup_address(repeater) && ((index + ADDRESS_LENGTH) < frame.length());
result.push_back(repeater);
}