Method get_paths_from_env_variable_impl

src/backward.h:3844–3852

    details::handle<std::ifstream*, details::default_delete<std::ifstream*>> _file;

    std::vector<std::string> get_paths_from_env_variable_impl()
    {
        std::vector<std::string> paths;
        const char* prefixes_str = std::getenv("BACKWARD_CXX_SOURCE_PREFIXES");
        if (prefixes_str && prefixes_str[0]) {
            paths = details::split_source_prefixes(prefixes_str);
        }
        return paths;
    }

    const std::vector<std::string>& get_paths_from_env_variable()
    {