triqs::count_type_occurrence< T, A >

Detailed Description

template<typename T, typename... A>
struct triqs::count_type_occurrence< T, A >

Number of types in a parameter pack that derive from (or are equal to) a given type.

It uses std::is_base_of to determine whether a type derives from T.

Useful when restricting variadic template overloads to a maximum number of arguments of a certain category.

Warning

This is unused. It might be removed in the future.

Template Parameters

T	Base type to look for.
A	Parameter pack of candidate types.

Definition at line 48 of file count_type_occurrence.hpp.

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The documentation for this struct was generated from the following file:

• triqs/utility/count_type_occurrence.hpp