ituple

[the-moisrex]

A tuple that has all the features of std::tuple + these:

• you can get a new tuple by calling .structured<N>()
  • this new tuple will be a resized version of the original
  • this is done to make structured binding of unknown lengths of tuples possible.
• nothing_type will be returned if the index is higher

todo

• [x] rename
• [x] chose a place to put it
• [x] copy implementation
• [x] implement todo comments in the code
• [x] copy simple tests from codeshells
• [x] test the newly implemented parts
• [ ] figure out how this tuple can be used inside a structured bindings in a for loop. It's for sql_statement (there's a test for it in sql_test.cpp)
• [x] fix tests
• [ ] Make ituple iterator work with tuples as well
• [ ] Make ituple iterator work with custom types that support "structured bindings"
• [ ] tuplifying the sql stmt binder (or column)
• [ ] renaming sql stmt binder to something better or separating the idea of binder and column
• [x] sql statement iterator
• [ ] ituple_iterator that supports sql stmt iter
• [ ] ituple which supports default type and default value generator
• [x] use ituple options in ituple_iterable
• [x] use ituple options in ituple_iterator
• [ ] fix type traits tests

[the-moisrex]

other names

• resizable_tuple
• istl::tuple
• mituple
• mi_tuple
• expandable_tuple
• ituple for improved tuple

[the-moisrex]

I've already implement most of it here: https://github.com/the-moisrex/codeshells/blob/main/cpp.tuple.structured.binding/main.cpp

[the-moisrex]

It's done now. I just have to figure out how to decompose this in a for loop.

[the-moisrex]

Do I have to reimplement all of the ituple_iterator just like I did with rapidjson? Come on!

[the-moisrex]

Somewhere along the way I forgot how sql statement was made and now I can't use ituple for it without changing what ituple is now.

[the-moisrex]

Lazy Iterators

Seems like a good idea to be used here.