Open-Harbor/osrm-backend
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Add string

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This commit is contained in:
Siarhei Fedartsou 2022-09-30 15:04:24 +02:00
parent a9c72e393a
commit cb0af6b863
2 changed files with 32 additions and 6 deletions
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18
include/util/json_renderer.hpp
View File

@ -122,21 +122,35 @@ template <> void Renderer<std::vector<char>>::write(const char *str)
{
out.insert(out.end(), str, str + strlen(str));
}
template <> void Renderer<std::vector<char>>::write(char ch) { out.push_back(ch); }
template <> void Renderer<std::ostream>::write(const std::string &str) { out << str; }
template <> void Renderer<std::ostream>::write(const char *str) { out << str; }
template <> void Renderer<std::vector<char>>::write(char ch) { out.push_back(ch); }
template <> void Renderer<std::ostream>::write(char ch) { out << ch; }
template <> void Renderer<std::string>::write(const std::string &str) { out += str; }
template <> void Renderer<std::string>::write(const char *str) { out += str; }
template <> void Renderer<std::string>::write(char ch) { out += ch; }
inline void render(std::ostream &out, const Object &object)
{
Value value = object;
mapbox::util::apply_visitor(Renderer(out), value);
}
inline void render(std::string &out, const Object &object)
{
Value value = object;
mapbox::util::apply_visitor(Renderer(out), value);
}
inline void render(std::vector<char> &out, const Object &object)
{
Value value = object;

20
src/benchmarks/json_render.cpp
View File

@ -6,6 +6,7 @@
#include <cstdlib>
#include <iostream>
#include <sstream>
#include <stdexcept>
// #ifdef _WIN32
// #pragma optimize("", off)
@ -130,17 +131,28 @@ int main(int, char **)
}
json::Object obj{{{"arr", arr}}};
TIMER_START(string);
std::string out_str;
json::render(out_str, obj);
TIMER_STOP(string);
std::cout << "String: " << TIMER_MSEC(string) << "ms" << std::endl;
TIMER_START(stringstream);
std::stringstream ss;
json::render(ss, obj);
std::string s{ss.str()};
std::string out_ss_str{ss.str()};
TIMER_STOP(stringstream);
std::cout << "String: " << TIMER_MSEC(stringstream) << "ms" << std::endl;
std::cout << "Stringstream: " << TIMER_MSEC(stringstream) << "ms" << std::endl;
TIMER_START(vector);
std::vector<char> vec;
json::render(vec, obj);
std::vector<char> out_vec;
json::render(out_vec, obj);
TIMER_STOP(vector);
std::cout << "Vector: " << TIMER_MSEC(vector) << "ms" << std::endl;
if (std::string{out_vec.begin(), out_vec.end()} != out_str || out_str != out_ss_str) {
throw std::logic_error("Vector and string are not equal");
}
// (void)s;
// std::cerr << ss << "\n";
return EXIT_SUCCESS;