Hi,
Ich have a template class and want to initialize a static variable, that is
available for all objekts of the template class, doesn't matter what
template parameter is used.
Can someone please tell me how it will work!
Thanks a lot!
Nils 3 2397
"Nils" <sl***@web.de > wrote... Ich have a template class and want to initialize a static variable, that
is available for all objekts of the template class, doesn't matter what template parameter is used.
You mean, like this:
template<class T> struct NilsClass {
static int someStaticVar;
};
// definition of the static member of the template
template<class T> int NilsClass<T>::s omeStaticVar = 42;
#include <iostream>
int main() {
NilsClass<doubl e> d;
std::cout << d.someStaticVar << std::endl;
NilsClass<std:: ostream> dd;
std::cout << dd.someStaticVa r << std::endl;
}
Victor
Yes, thanks a lot.
"Victor Bazarov" <v.********@com Acast.net> schrieb im Newsbeitrag
news:PT_Gb.2060 35$_M.911325@at tbi_s54... "Nils" <sl***@web.de > wrote... Ich have a template class and want to initialize a static variable, that is available for all objekts of the template class, doesn't matter what template parameter is used.
You mean, like this:
template<class T> struct NilsClass { static int someStaticVar; };
// definition of the static member of the template template<class T> int NilsClass<T>::s omeStaticVar = 42;
#include <iostream> int main() { NilsClass<doubl e> d; std::cout << d.someStaticVar << std::endl; NilsClass<std:: ostream> dd; std::cout << dd.someStaticVa r << std::endl; }
Victor
"Nils" <sl***@web.de > wrote in message
news:bs******** ***@ariadne.rz. tu-clausthal.de... Yes, thanks a lot.
"Victor Bazarov" <v.********@com Acast.net> schrieb im Newsbeitrag news:PT_Gb.2060 35$_M.911325@at tbi_s54... "Nils" <sl***@web.de > wrote... Ich have a template class and want to initialize a static variable,
that is available for all objekts of the template class, doesn't matter what template parameter is used.
You mean, like this:
template<class T> struct NilsClass { static int someStaticVar; };
// definition of the static member of the template template<class T> int NilsClass<T>::s omeStaticVar = 42;
#include <iostream> int main() { NilsClass<doubl e> d; std::cout << d.someStaticVar << std::endl; NilsClass<std:: ostream> dd; std::cout << dd.someStaticVa r << std::endl; }
Victor
Nils / Victor - I think there may be a misunderstandin g - in the above
d.someStaticVar is not the same as dd.someStaticVa r
If you want the same var for all template instantiations as Nils originally
stated then you put the static in a non-template class and have the template
class derive from that. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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