Method init

extlibs/fmt/include/fmt/format-inl.h:216–223

FMT_API FMT_FUNC system_error::~system_error() FMT_NOEXCEPT = default;

FMT_FUNC void system_error::init(int err_code, string_view format_str,
                                 format_args args) {
  error_code_ = err_code;
  memory_buffer buffer;
  format_system_error(buffer, err_code, vformat(format_str, args));
  std::runtime_error& base = *this;
  base = std::runtime_error(to_string(buffer));
}

namespace internal {