template class, operator T

[Christopher]

I am trying to re-write some code from a book I am working on so that I
understand it's functionality.
I ran across this:

template <class T>
class Flag
{
public:
// snip
T value;
operator T() {return value;};
// snip
};

what does the operator T do? and is it not returning a value even a void?
,
Christopher

 

[Jeff Schwab]

I am trying to re-write some code from a book I am working on so that I
understand it's functionality.
I ran across this:

template <class T>
class Flag
{
public:
// snip
T value;
operator T() {return value;};
// snip
};

what does the operator T do? and is it not returning a value even a void?

It's returning a T. That function will be called whenever an object of
type Flag<T> is converted to type T.

 

[Ralf]

class Flag
{
public:
// snip
T value;
operator T() {return value;};
// snip
};

what does the operator T do? and is it not returning a value even a void?

It is an operator for type conversion. An object of the type Flag<T> can be
converted to T.

Ralf

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