C Map Of Tuples

C Map Of Tuples. Tuples as Map Keys [C++/Boost] YouTube C++ doesn't (yet) have a 'map' higher-order function, certainly not one which applies to a compile-time sequence of values like a tuple.We have std::transform, and there's an equivalent of it for tuples listed on SO, but that's iterator-based, and anyway - I don't want to use any reference to the output They perform insertion/deletion/access in constant average time

I want to pass a tuple and a function / variadic lambda, and get another tuple of the same. All member functions of std::unordered_map are constexpr: it is possible to create and use std::unordered_map objects in the evaluation of a constant expression

Python Tutorial 16 List Vs Dictionary Vs Tuple in Python YouTube

However, std::unordered_map objects generally cannot be constexpr, because any dynamically allocated storage must be released in the same evaluation of constant expression Here is an example where the two calls to new Obj() have been replaced by literal 1 and 2. For example, I have an unordered multimap that uses a tuple of as a key, but I want to look for a tuple of: <"abc", doesn't matter, doesn't matter> I've looked at the equals range and equals function, but I don't think it's what I'm looking for.

Using Tuples as Map Values StudyPlan.dev. C++ doesn't (yet) have a 'map' higher-order function, certainly not one which applies to a compile-time sequence of values like a tuple.We have std::transform, and there's an equivalent of it for tuples listed on SO, but that's iterator-based, and anyway - I don't want to use any reference to the output Is it possible to search a map for all key,value pairs that contains part of a tuple in C++

Using Tuples as Map Values StudyPlan.dev. What is a Tuple? A tuple in C++ is an object which is used to group elements together Syntax: map, dataType>; Here, dataType1, dataType2, dataType3 are the data types for the tuple which is a key here