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c++ Programming Glossary: trait

How can I check if a type is an instantiation of a given class template? [duplicate]

http://stackoverflow.com/questions/11251376/how-can-i-check-if-a-type-is-an-instantiation-of-a-given-class-template

is something I would like to avoid. Ideally I'd need a trait to test whether a type is an instantiation of a template to.. static assertions #include boost mpl or.hpp #include type_traits struct null_type template typename Head typename Tail struct.. or null_type typedef Head head typedef Tail tail Is such a trait is_instantiation_of already available in the standard library..

template metaprogramming: (trait for?) dissecting a specified template into types T<T2,T3 N,T4, …>

http://stackoverflow.com/questions/11723652/template-metaprogramming-trait-for-dissecting-a-specified-template-into-type

metaprogramming trait for dissecting a specified template into types T T2 T3 N T4.. array' automatic. For std array there's the tuple_size trait which helps and a similar thing can be used to find the type..

How to guarantee order of argument evaluation when calling a function object?

http://stackoverflow.com/questions/14058592/how-to-guarantee-order-of-argument-evaluation-when-calling-a-function-object

value you could pass it in by reference you'll need some trait to extract the return type or store it in the object to get..

C++ virtual table layout of MI(multiple inheritance)

http://stackoverflow.com/questions/15921372/c-virtual-table-layout-of-mimultiple-inheritance

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

You could do something along these lines. Given a trait that can verify whether a class is an instantiation of a class.. is an instantiation of a class template #include type_traits template typename T template typename class TT struct is_instantiation_of.. with any number of type parameters like so #include type_traits template template typename... class TT typename T struct is_instantiation_of..

Is there a template in C++11 to deduce the optimal type to use when passing a value to a function?

http://stackoverflow.com/questions/17707845/is-there-a-template-in-c11-to-deduce-the-optimal-type-to-use-when-passing-a-va

there maybe a ready made template already I checked type_traits but couldn't spot anything which seemed relevant. c c 11 .. will lose template argument deduction implementing such a trait which in my opinion reduces its utility greatly. share improve..

Uses of a C++ Arithmetic Promotion Header

http://stackoverflow.com/questions/2426330/uses-of-a-c-arithmetic-promotion-header

but the point is it would figure out what X would be via trait testing etc Specialization of arithmetic promotion template..

Specializing a template on a lambda in C++0x

http://stackoverflow.com/questions/2562320/specializing-a-template-on-a-lambda-in-c0x

a template on a lambda in C 0x I've written a traits class that lets me extract information about the arguments.. function objects template typename F struct function_traits template typename R typename... A struct _internal template.. scope template typename R typename... A struct function_traits R A... ... This works fine I can pass a function into the template..

C++: How to require that one template type is derived from the other

http://stackoverflow.com/questions/2631585/c-how-to-require-that-one-template-type-is-derived-from-the-other

metaprogramming share improve this question A trait you want might look like this template typename B typename D..

Is a C++ is_lambda trait, purely implemented as a library, impossible?

http://stackoverflow.com/questions/4661875/is-a-c-is-lambda-trait-purely-implemented-as-a-library-impossible

a C is_lambda trait purely implemented as a library impossible I have a question.. error for templated call operators. I believe an is_lambda trait can only be created using intrinsic compiler features. Do you.. compiler features. Do you see a way how to implement this trait c lambda c 0x traits share improve this question Since..

Pretty-print C++ STL containers

http://stackoverflow.com/questions/4850473/pretty-print-c-stl-containers

that would match all containers C. Maybe something trait ish that can figure out if something has the necessary iterator.. from Sven Groot which combined with a bit of SFINAE type traiting appears to solve the problem in a completely general and.. default delimiters are round brackets. The enable if type trait requires C 0x but with some modifications it should be possible..

C++ reading unsigned char from file stream

http://stackoverflow.com/questions/604431/c-reading-unsigned-char-from-file-stream

explicit specializations for two versions of character traits std char_traits char std char_traits wchar_t The streams and.. for two versions of character traits std char_traits char std char_traits wchar_t The streams and strings use those.. versions of character traits std char_traits char std char_traits wchar_t The streams and strings use those traits to figure..

Does std::vector *have* to move objects when growing capacity? Or, can allocators “reallocate”?

http://stackoverflow.com/questions/8003233/does-stdvector-have-to-move-objects-when-growing-capacity-or-can-allocator

like extend_or_malloc_new . Edit Perhaps a is_pod trait based specialization would allow us to use the actual realloc..