celeritas::ContainerVisitor< T, U > Class Template Reference

Visit a container's element by calling "visit" on the corresponding index. More...

#include <VariantUtils.hh>

Public Types
Type aliases
using	index_type = U

Public Member Functions
	ContainerVisitor (T &&container)
	Construct with a container.
template<class F >
decltype(auto)	operator() (F &&func, U const &idx) const
	Visit the functor upon the value at the given index.

Detailed Description

template<class T, class U = typename std::remove_reference_t<T>::size_type>
class celeritas::ContainerVisitor< T, U >

Visit a container's element by calling "visit" on the corresponding index.

example:

std::vector<std::variant<int, std:string>> myvec{"hi", 123, "bye"};
ContainerVisitor visit_element{myvec};
visit_element([](auto&& v) { cout << v; }, 1); // Prints '123'
visit_element([](auto&& v) { cout << v; }, 2); // Prints 'bye'

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

• VariantUtils.hh