std::iterator is depricated

[hombit]

freddi/cpp/include/freddi_evolution.hpp

Lines 15 to 16 in 66559fa

	template<typename T>
	class EvolutionIterator: public std::iterator<std::forward_iterator_tag, size_t, ptrdiff_t, const T*, T&> {

D.13 [depr.iterator.primitives]: “warning STL4015: The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17. (The header is NOT deprecated.) The C++ Standard has never required user-defined iterators to derive from std::iterator. To fix this warning, stop deriving from std::iterator and start providing publicly accessible typedefs named iterator_category, value_type, difference_type, pointer, and reference. Note that value_type is required to be non-const, even for constant iterators. You can define _SILENCE_CXX17_ITERATOR_BASE_CLASS_DEPRECATION_WARNING or _SILENCE_ALL_CXX17_DEPRECATION_WARNINGS to acknowledge that you have received this warning.”
https://devblogs.microsoft.com/cppblog/c17-feature-removals-and-deprecations/