inter_argument_order.cpp
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#include <CLI/CLI.hpp>
#include <iostream>
#include <vector>
#include <tuple>
int main(int argc, char **argv) {
CLI::App app;
std::vector<int> foos;
auto foo = app.add_option("--foo,-f", foos);
std::vector<int> bars;
auto bar = app.add_option("--bar", bars);
app.add_flag("--z,--x"); // Random other flags
// Standard parsing lines (copy and paste in)
try {
app.parse(argc, argv);
} catch (const CLI::ParseError &e) {
return app.exit(e);
}
// I perfer using the back and popping
std::reverse(std::begin(foos), std::end(foos));
std::reverse(std::begin(bars), std::end(bars));
std::vector<std::tuple<std::string,int>> keyval;
for(auto option : app.parse_order()) {
if(option == foo) {
keyval.emplace_back("foo", foos.back());
foos.pop_back();
}
if(option == bar) {
keyval.emplace_back("bar", bars.back());
bars.pop_back();
}
}
// Prove the vector is correct
std::string name;
int value;
for(auto& tuple : keyval) {
std::tie(name, value) = tuple;
std::cout << name << " : " << value << std::endl;
}
}