[Solved] Making a new function by fixing one of the input parameters [closed]

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You probably want lambda or std::function, or std::bind

auto l_add_100 = [](double x) { return add_two_numbers(x, 100); };
std::function<double(double)> f_add_100 = [](double x) { return add_two_numbers(x, 100); }
auto b_add_100 = std::bind(add_two_numbers, std::place_holder::_1, 100);

or with non hard coded number

double y = //...
auto l_add_y = [y](double x) { return add_two_numbers(x, y); }
std::function<double(double)> f_add_y = [](double x) { return add_two_numbers(x, y); }
auto b_add_100 = std::bind(add_two_numbers, std::place_holder::_1, y);

solved Making a new function by fixing one of the input parameters [closed]