in benchmark/src/benchmark_object.cpp [51:65]
std::string make_json(size_t n) {
std::stringstream json_ss;
json_ss << "{";
const size_t num_letters = 'z' - 'a';
for (size_t i = 0; i < n; i++) {
const auto c = static_cast<char>('a' + (i % num_letters));
const auto m = (i / num_letters);
std::stringstream key_ss;
json_ss << '"' << c << m << '"' << ":0,";
}
json_ss << '"' << '.' << '"' << ":0}";
return json_ss.str();
}