kopia lustrzana https://github.com/AlexandreRouma/SDRPlusPlus
117 wiersze
3.0 KiB
C++
117 wiersze
3.0 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
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// Distributed under the MIT License (http://opensource.org/licenses/MIT)
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#pragma once
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#include <chrono>
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#include <type_traits>
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#include <spdlog/fmt/fmt.h>
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#include <spdlog/common.h>
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// Some fmt helpers to efficiently format and pad ints and strings
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namespace spdlog {
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namespace details {
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namespace fmt_helper {
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inline spdlog::string_view_t to_string_view(const memory_buf_t &buf) SPDLOG_NOEXCEPT
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{
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return spdlog::string_view_t{buf.data(), buf.size()};
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}
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inline void append_string_view(spdlog::string_view_t view, memory_buf_t &dest)
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{
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auto *buf_ptr = view.data();
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dest.append(buf_ptr, buf_ptr + view.size());
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}
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template<typename T>
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inline void append_int(T n, memory_buf_t &dest)
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{
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fmt::format_int i(n);
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dest.append(i.data(), i.data() + i.size());
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}
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template<typename T>
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inline unsigned int count_digits(T n)
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{
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using count_type = typename std::conditional<(sizeof(T) > sizeof(uint32_t)), uint64_t, uint32_t>::type;
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return static_cast<unsigned int>(fmt::
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// fmt 7.0.0 renamed the internal namespace to detail.
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// See: https://github.com/fmtlib/fmt/issues/1538
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#if FMT_VERSION < 70000
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internal
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#else
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detail
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#endif
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::count_digits(static_cast<count_type>(n)));
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}
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inline void pad2(int n, memory_buf_t &dest)
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{
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if (n >= 0 && n < 100) // 0-99
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{
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dest.push_back(static_cast<char>('0' + n / 10));
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dest.push_back(static_cast<char>('0' + n % 10));
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}
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else // unlikely, but just in case, let fmt deal with it
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{
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fmt::format_to(dest, "{:02}", n);
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}
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}
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template<typename T>
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inline void pad_uint(T n, unsigned int width, memory_buf_t &dest)
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{
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static_assert(std::is_unsigned<T>::value, "pad_uint must get unsigned T");
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for (auto digits = count_digits(n); digits < width; digits++)
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{
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dest.push_back('0');
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}
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append_int(n, dest);
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}
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template<typename T>
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inline void pad3(T n, memory_buf_t &dest)
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{
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static_assert(std::is_unsigned<T>::value, "pad3 must get unsigned T");
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if (n < 1000)
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{
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dest.push_back(static_cast<char>(n / 100 + '0'));
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n = n % 100;
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dest.push_back(static_cast<char>((n / 10) + '0'));
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dest.push_back(static_cast<char>((n % 10) + '0'));
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}
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else
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{
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append_int(n, dest);
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}
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}
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template<typename T>
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inline void pad6(T n, memory_buf_t &dest)
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{
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pad_uint(n, 6, dest);
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}
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template<typename T>
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inline void pad9(T n, memory_buf_t &dest)
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{
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pad_uint(n, 9, dest);
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}
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// return fraction of a second of the given time_point.
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// e.g.
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// fraction<std::milliseconds>(tp) -> will return the millis part of the second
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template<typename ToDuration>
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inline ToDuration time_fraction(log_clock::time_point tp)
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{
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using std::chrono::duration_cast;
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using std::chrono::seconds;
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auto duration = tp.time_since_epoch();
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auto secs = duration_cast<seconds>(duration);
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return duration_cast<ToDuration>(duration) - duration_cast<ToDuration>(secs);
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}
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} // namespace fmt_helper
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} // namespace details
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} // namespace spdlog
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