C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Re: pointer to member function          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Rolf Magnus Guest Posted: Fri Jul 04, 2003 5:04 pm    Post subject: Re: pointer to member function Tux wrote: Quote: Hello, let's say I have: void test_func( double (*func)(in,int) ) { // code ... } Could a pointer to a member function of an arbitrary class to be converted to a pointer to an ordinary non-member function ? No, not if that function is non-static. How would the compiler know which object to call the member function for? Quote: I would like to write: test_func(&SomeClass::func); Back to top John Harrison Guest Posted: Fri Jul 04, 2003 5:11 pm    Post subject: Re: pointer to member function "Tux" <catina (AT) uni-bremen (DOT) de> wrote Quote: Hello, let's say I have: void test_func( double (*func)(in,int) ) { // code ... } Could a pointer to a member function of an arbitrary class to be converted to a pointer to an ordinary non-member function ? I would like to write: test_func(&SomeClass::func); Thanks. No it cannot, unless the member function is static. See the FAQ http://www.parashift.com/c++-faq-lite/pointers-to-members.html john Back to top Allen Guest Posted: Sat Aug 02, 2003 2:48 am    Post subject: Re: pointer to member function Hi ES Kim, You know, now that you've shown it to me, I think that I've seen how to do that before. <slaps forehead> Thanks for the help. -- Best wishes, Allen No SPAM in my email !! "ES Kim" <eskim (AT) svd (DOT) co.kr> wrote Quote: "Allen" <allen-terri-ng (AT) att (DOT) SPAM.net> wrote in message news:lTEWa.84070$0v4.5609149 (AT) bgtnsc04-news (DOT) ops.worldnet.att.net... Sorry for the mispost. Apparently, if your subject line matches an already existing one, it includes it to that thread. After reading the thread this ended up in, I'm wondering if this would work: class A { public: int func(); } typedef int (*func)(void) myFuncPntr; It's a wrong typedef syntax. typedef int (A::*myFuncPntr)(); myFuncPntr pf = &A::func; A obj; int i = (obj.*pf)(); // the same as obj.func() -- ES Kim Back to top Allen Guest Posted: Mon Aug 04, 2003 6:04 pm    Post subject: Re: pointer to member function Hi Kim, all, <comments inline> "ES Kim" <eskim (AT) svd (DOT) co.kr> wrote Quote: "Allen" <allen-terri-ng (AT) att (DOT) SPAM.net> wrote in message news:lTEWa.84070$0v4.5609149 (AT) bgtnsc04-news (DOT) ops.worldnet.att.net... Sorry for the mispost. Apparently, if your subject line matches an already existing one, it includes it to that thread. After reading the thread this ended up in, I'm wondering if this would work: class A { public: int func(); } typedef int (*func)(void) myFuncPntr; It's a wrong typedef syntax. typedef int (A::*myFuncPntr)(); myFuncPntr pf = &A::func; A obj; int i = (obj.*pf)(); // the same as obj.func() I can't believe I missed this before. What that does is create a pointer to the member function, but it still requires the use of the object. What I'm looking for is a way to declare a pointer to the _whole_thing_! Is that possible? -- Best wishes, Allen No SPAM in my email !! Back to top Allen Guest Posted: Mon Aug 04, 2003 6:23 pm    Post subject: Re: pointer to member function nevermind, I found an answer. Thnx "Allen" <allen-terri-ng (AT) att (DOT) SPAM.net> wrote Quote: Hi Kim, all, comments inline "ES Kim" <eskim (AT) svd (DOT) co.kr> wrote in message news:bgf5id$44d$1 (AT) news1 (DOT) kornet.net... "Allen" <allen-terri-ng (AT) att (DOT) SPAM.net> wrote in message news:lTEWa.84070$0v4.5609149 (AT) bgtnsc04-news (DOT) ops.worldnet.att.net... Sorry for the mispost. Apparently, if your subject line matches an already existing one, it includes it to that thread. After reading the thread this ended up in, I'm wondering if this would work: class A { public: int func(); } typedef int (*func)(void) myFuncPntr; It's a wrong typedef syntax. typedef int (A::*myFuncPntr)(); myFuncPntr pf = &A::func; A obj; int i = (obj.*pf)(); // the same as obj.func() I can't believe I missed this before. What that does is create a pointer to the member function, but it still requires the use of the object. What I'm looking for is a way to declare a pointer to the _whole_thing_! Is that possible? -- Best wishes, Allen No SPAM in my email !! 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