Class test_func1

exprtk_test.cpp:5876–5876

template <typename T> struct test_func3 exprtk_test_final : public base_func<T> { test_func3() : base_func<T>(3){} };
template <typename T> struct test_func2 exprtk_test_final : public base_func<T> { test_func2() : base_func<T>(2){} };
template <typename T> struct test_func1 exprtk_test_final : public base_func<T> { test_func1() : base_func<T>(1){} };
template <typename T> struct test_func0 exprtk_test_final : public base_func<T> { test_func0() : base_func<T>(0){} };

template <typename T>