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//
// Copyright (c) 2021 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/json
//
//
// An example that compares the performance of json::parse and
// json::parse_into on canada.json
//
#include <boost/json.hpp>
#if !defined(BOOST_DESCRIBE_CXX14)
#include <boost/config/pragma_message.hpp>
BOOST_PRAGMA_MESSAGE( "This example requires C++14" )
int main() {}
#else
#include <boost/describe.hpp>
#include <chrono>
#include <fstream>
#include <iostream>
#include "canada.hpp"
using namespace std::chrono_literals;
using canada = boost::json::canada::data;
int main()
{
std::ifstream is( "canada.json" );
std::string json( std::istreambuf_iterator<char>( is ), std::istreambuf_iterator<char>{} );
std::cout << "canada.json: " << json.size() << " bytes\n";
{
auto tp1 = std::chrono::steady_clock::now();
boost::json::value jv = boost::json::parse( json );
auto tp2 = std::chrono::steady_clock::now();
std::cout << "boost::json::parse: " << (tp2 - tp1) / 1ms << " ms\n";
}
{
auto tp1 = std::chrono::steady_clock::now();
canada w;
boost::system::error_code ec;
boost::json::parse_into( w, json, ec );
if( ec.failed() )
{
std::cout << "Error: " << ec.what() << std::endl;
}
auto tp2 = std::chrono::steady_clock::now();
std::cout << "parse_into<canada>: " << (tp2 - tp1) / 1ms << " ms\n";
}
}
#endif
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