template/member function puzzle

[Glen Able]

Not sure if this a dumb syntax error, or if there some more subtle reason
why this doesn't work:

template <class ObjT> class Foo
{
typedef bool (ObjT::*TestFunction)();

public:
void Bar( ObjT* pObj,
TestFunction fn)
{
if (pObj->*fn()) // ERROR HERE : "term does not evaluate to a
function"
{

}
}
};

Any thoughts?

ta,
G.A.

[Sumit Rajan]

"Glen Able" <Gl*******@gmail.com> wrote in message
news:cu*******************@news.demon.co.uk...

Not sure if this a dumb syntax error, or if there some more subtle reason
why this doesn't work:

template <class ObjT> class Foo
{
typedef bool (ObjT::*TestFunction)();

public:
void Bar( ObjT* pObj,
TestFunction fn)
{
if (pObj->*fn()) // ERROR HERE : "term does not evaluate to a
function"

This should "work":
if (pObj->fn())

or:
if ((*pObj->fn)())

Regards,
Sumit.
--
Sumit Rajan <su*********@gmail.com>

[Glen Able]

"Sumit Rajan" <su*********@gmail.com> wrote in message
news:37*************@individual.net...

"Glen Able" <Gl*******@gmail.com> wrote in message
news:cu*******************@news.demon.co.uk...

Not sure if this a dumb syntax error, or if there some more subtle reason why this doesn't work:

template <class ObjT> class Foo
{
typedef bool (ObjT::*TestFunction)();

public:
void Bar( ObjT* pObj,
TestFunction fn)
{
if (pObj->*fn()) // ERROR HERE : "term does not evaluate to a function"

This should "work":
if (pObj->fn())

or:
if ((*pObj->fn)())

No, those just give new errors: 'fn is not a member of class [whatever]' .

[Glen Able]

"Glen Able" <Gl*******@gmail.com> wrote in message
news:cu*******************@news.demon.co.uk...

"Sumit Rajan" <su*********@gmail.com> wrote in message
news:37*************@individual.net...

"Glen Able" <Gl*******@gmail.com> wrote in message
news:cu*******************@news.demon.co.uk...

Not sure if this a dumb syntax error, or if there some more subtle reason why this doesn't work:

template <class ObjT> class Foo
{
typedef bool (ObjT::*TestFunction)();

public:
void Bar( ObjT* pObj,
TestFunction fn)
{
if (pObj->*fn()) // ERROR HERE : "term does not evaluate

to

a function"

This should "work":
if (pObj->fn())

or:
if ((*pObj->fn)())

ahhhh...stupid precedence error, innit.

I should've done:

if ((pObj->*fn)())
{

}

cheers
G.A.

[Sumit Rajan]

"Glen Able" <Gl*******@gmail.com> wrote in message
news:cu*******************@news.demon.co.uk...

ahhhh...stupid precedence error, innit.

I should've done:

if ((pObj->*fn)())
{

}

Nice work!
I made a complete mess of it!!

Regards,
Sumit.
--
Sumit Rajan <su*********@gmail.com>