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c++ Programming Glossary: ttHow to detect whether there is a specific member variable in class? http://stackoverflow.com/questions/1005476/how-to-detect-whether-there-is-a-specific-member-variable-in-class could be reduces to the following code template int struct TT typedef int type template class P bool Check_x P p typename.. int type template class P bool Check_x P p typename TT sizeof &P x type b 0 return true template class P bool Check_x.. b 0 return true template class P bool Check_x P p typename TT sizeof &P X type b 0 return false struct P1 int x struct P2..
Doing a static_assert that a template type is another template http://stackoverflow.com/questions/17390605/doing-a-static-assert-that-a-template-type-is-another-template type_traits template typename T template typename class TT struct is_instantiation_of std false_type template typename.. std false_type template typename T template typename class TT struct is_instantiation_of TT T TT std true_type Use it as follows.. T template typename class TT struct is_instantiation_of TT T TT std true_type Use it as follows in your program template..
Using a template alias instead of a template within a template http://stackoverflow.com/questions/17392621/using-a-template-alias-instead-of-a-template-within-a-template another template type template template typename... class TT typename... Ts struct is_instantiation_of public std false_type.. public std false_type template template typename... class TT typename... Ts struct is_instantiation_of TT TT Ts... public.. class TT typename... Ts struct is_instantiation_of TT TT Ts... public std true_type template typename T struct foo..
C++: nested class of a template class http://stackoverflow.com/questions/4092237/c-nested-class-of-a-template-class void g Nested typedef typename Nested outer argument TT BOOST_STATIC_ASSERT boost is_same typename A TT B Nested value.. argument TT BOOST_STATIC_ASSERT boost is_same typename A TT B Nested value struct NN typedef NN outer typedef NN argument..
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