feedc0de/mp-units
1
0
Fork 0
forked from mpusz/mp-units
Code Pull Requests Activity

refactor: References are now guarded UNITS_REFERENCES with (ON by default) + examples duplicated to subdirectories

Browse Source 
Now References can be disabled to meassure a compile time impact. Also the same examples are now provided in two subdirectories to be able to easily compare the pros and cons of every quantity construction technique.
This commit is contained in:
Mateusz Pusz
2021-04-06 15:57:28 +02:00
parent b842c3f94a
commit b982921d27
118 changed files with 2841 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files

202
example/glide_computer_example.cpp
View File

@@ -1,202 +0,0 @@
// The MIT License (MIT)
//
// Copyright (c) 2018 Mateusz Pusz
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include "glide_computer.h"
#include <units/bits/external/hacks.h>
#include <units/chrono.h>
#include <units/generic/dimensionless.h>
#include <units/isq/si/international/length.h>
UNITS_DIAGNOSTIC_PUSH
UNITS_DIAGNOSTIC_IGNORE_UNREACHABLE
#include <fmt/format.h>
UNITS_DIAGNOSTIC_POP
#include <array>
#include <exception>
#include <iostream>
#include <iterator>
#include <string>
#include <utility>
#include <vector>
namespace {
using namespace glide_computer;
using namespace units::isq;
auto get_gliders()
{
using namespace si::references;
UNITS_DIAGNOSTIC_PUSH
UNITS_DIAGNOSTIC_IGNORE_MISSING_BRACES
static const std::array gliders = {
glider{"SZD-30 Pirat", {velocity(83 * (km / h)), rate_of_climb(-0.7389 * (m / s))}},
glider{"SZD-51 Junior", {velocity(80 * (km / h)), rate_of_climb(-0.6349 * (m / s))}},
glider{"SZD-48 Jantar Std 3", {velocity(110 * (km / h)), rate_of_climb(-0.77355 * (m / s))}},
glider{"SZD-56 Diana", {velocity(110 * (km / h)), rate_of_climb(-0.63657 * (m / s))}}};
UNITS_DIAGNOSTIC_POP
return gliders;
}
auto get_weather_conditions()
{
using namespace si::references;
static const std::array weather_conditions = {
std::pair("Good", weather{height(1900 * m), rate_of_climb(4.3 * (m / s))}),
std::pair("Medium", weather{height(1550 * m), rate_of_climb(2.8 * (m / s))}),
std::pair("Bad", weather{height(850 * m), rate_of_climb(1.8 * (m / s))})};
return weather_conditions;
}
auto get_waypoints()
{
using namespace geographic::literals;
using namespace units::isq::si::international::references;
static const std::array waypoints = {
waypoint{"EPPR", {54.24772_N, 18.6745_E}, altitude(16 * ft)}, // N54°14'51.8" E18°40'28.2"
waypoint{"EPGI", {53.52442_N, 18.84947_E}, altitude(115 * ft)} // N53°31'27.9" E18°50'58.1"
};
return waypoints;
}
template<std::ranges::forward_range R>
requires std::same_as<std::ranges::range_value_t<R>, glider>
void print(const R& gliders)
{
std::cout << "Gliders:\n";
std::cout << "========\n";
for (const auto& g : gliders) {
std::cout << "- Name: " << g.name << "\n";
std::cout << "- Polar:\n";
for (const auto& p : g.polar)
fmt::print(" * {:%.4Q %q} @ {:%.1Q %q} -> {:%.1Q %q}\n", p.climb, p.v, units::quantity_cast<units::one>(glide_ratio(g.polar[0])));
std::cout << "\n";
}
}
template<std::ranges::forward_range R>
requires std::same_as<std::ranges::range_value_t<R>, std::pair<const char*, weather>>
void print(const R& conditions)
{
std::cout << "Weather:\n";
std::cout << "========\n";
for (const auto& c : conditions) {
std::cout << "- " << c.first << "\n";
const auto& w = c.second;
std::cout << " * Cloud base: " << fmt::format("{:%.0Q %q}", w.cloud_base) << " AGL\n";
std::cout << " * Thermals strength: " << fmt::format("{:%.1Q %q}", w.thermal_strength) << "\n";
std::cout << "\n";
}
}
template<std::ranges::forward_range R>
requires std::same_as<std::ranges::range_value_t<R>, waypoint>
void print(const R& waypoints)
{
std::cout << "Waypoints:\n";
std::cout << "==========\n";
for (const auto& w : waypoints)
std::cout << fmt::format("- {}: {} {}, {:%.1Q %q}\n", w.name, w.pos.lat, w.pos.lon, w.alt);
std::cout << "\n";
}
void print(const task& t)
{
std::cout << "Task:\n";
std::cout << "=====\n";
std::cout << "- Start: " << t.get_start().name << "\n";
std::cout << "- Finish: " << t.get_finish().name << "\n";
std::cout << "- Length: " << fmt::format("{:%.1Q %q}", t.get_length()) << "\n";
std::cout << "- Legs: " << "\n";
for (const auto& l : t.get_legs())
std::cout << fmt::format(" * {} -> {} ({:%.1Q %q})\n", l.begin().name, l.end().name, l.get_length());
std::cout << "\n";
}
void print(const safety& s)
{
std::cout << "Safety:\n";
std::cout << "=======\n";
std::cout << "- Min AGL separation: " << fmt::format("{:%.0Q %q}", s.min_agl_height) << "\n";
std::cout << "\n";
}
void print(const aircraft_tow& tow)
{
std::cout << "Tow:\n";
std::cout << "====\n";
std::cout << "- Type: aircraft\n";
std::cout << "- Height: " << fmt::format("{:%.0Q %q}", tow.height_agl) << "\n";
std::cout << "- Performance: " << fmt::format("{:%.1Q %q}", tow.performance) << "\n";
std::cout << "\n";
}
void example()
{
using namespace si::references;
const safety sfty = {height(300 * m)};
const auto gliders = get_gliders();
const auto waypoints = get_waypoints();
const auto weather_conditions = get_weather_conditions();
const task t = {waypoints[0], waypoints[1], waypoints[0]};
const aircraft_tow tow = {height(400 * m), rate_of_climb(1.6 * (m / s))};
// TODO use C++20 date library when available
// set `start_time` to 11:00 am today
const timestamp start_time(std::chrono::system_clock::now());
print(sfty);
print(gliders);
print(waypoints);
print(weather_conditions);
print(t);
print(tow);
for (const auto& g : gliders) {
for (const auto& c : weather_conditions) {
std::string txt = "Scenario: Glider = " + g.name + ", Weather = " + c.first;
std::cout << txt << "\n";
fmt::print("{0:=^{1}}\n\n", "", txt.size());
estimate(start_time, g, c.second, t, sfty, tow);
std::cout << "\n\n";
}
}
}
} // namespace
int main()
{
try {
example();
} catch (const std::exception& ex) {
std::cerr << "Unhandled std exception caught: " << ex.what() << '\n';
} catch (...) {
std::cerr << "Unhandled unknown exception caught\n";
}
}