I had some code in which i allowed the user to input numbers for int value and then output it however now i want to allo

[answerhappygod]

I had some code in which i allowed the user to input numbers for
int value and then output it however now i want to allow the user
to input double value as well so that means we will be using the
same variable and store both values and output it.
int main()
{
// Declare variables
string name;
int age;
string birdsname;
int freq;
int amp;
double freq;
double amp;
// Get details of user, bird and the speed.
name = read_string("What is your name:");
age = read_integer("What is your age:");
birdsname = read_string("What is the birds name:");
freq = read_integer("Enter Frequency: ");
amp = read_integer("Enter Amplitude: ");
The above code is where i had the variables freq and amp in
which we asked user to input integer whole numbers but now we want
to use double values as well like 0.1 or 0.21 something like that.
But i am not sure how can i do that because i can't obviously
create 2 different inputs.
Its from a task so i have been advised to create the following
function:
Design and implement a function declared as <output_type>
read_double(string parameter) to read in a double from the
user, with a parameter for the message to prompt with.
i have created something like the below code because we did same
code before so its pretty similar. However i just don't know how we
will be allowing the same variable freq and amp to take double and
integer as well as outputing it using teh same variable. Can
someone please help with that. Program i am using is visual studio
code c++.
double read_double(string prompt)
{
string message;
message = read_string(prompt);
return convert_to_double(message);
}