Function valueFromLine

src/Mod/Fem/App/FemVTKTools.cpp:1535–1539

//}
template<typename T>
void valueFromLine(const std::string_view::iterator& it, int digits, T& value)
{
    std::string_view sub(&*it, digits);
    value = std::strtol(sub.data(), nullptr, 10);
}
template<>
void valueFromLine<double>(const std::string_view::iterator& it, int digits, double& value)
{