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mirza101

using multiple data types with c++

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hi, i'm trying to make a function that does operations with numbers. for example it does this: a = c + b; but i want it to be able to do the operation with int, float, double, long and other number types at once; so it means that i could pass a float or integer to a same function. is it posible in c++ to pass a parameter to a function that won't care variable type like this?

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You can use templates:


template <typename T>
T myfunc(T a, T b)
{
return a + b;
}


Also the boost library provides a variant data type. Maybe this is what you are looking for.

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Use operator overloading.

e.g.


myNumberClass operator+(myNumberClass c, int i)
{
//whatever
}


myNumberClass operator+(myNumberClass c, float f)
{
//whatever
}


myNumberClass operator+(myNumberClass c, double i)
{
//whatever
}


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