taocpp / tuple Goto Github PK

Hey!

I am integrating tao::tuple in an existing std::tuple code base. Problem that I run into is that this particular code base is using Structured Bindings very heavily to get access to the tuple members.
tao::tuple as of now has no support for it. I was looking to add support for that, but I am struggling a bit. And perhaps some of the maintainers can give some assistance.

I fear that since tao::tuple is inheritence based, support will be impossible. But perhaps there is a way I do not see?

When trying to create a structured bindng for a tao::tuple, like this:
const auto tuple = tao::make_tuple(1, 2); const auto [v1, v2] = tuple;
I get the following error:

the number of identifiers must match the number of array elements or members in a structured binding declaration

Since tao::tuple decomposes into a single type: tuple_base.

Any help is greatly appreciated.

Currently does not compile with GCC 7.3.1 and the -std=c++17 flag. All test cases throw 'wrong number of template arguments' errors.

Hi, I got this very simple Taocpp code:

#include <iostream>
#include <tao/tuple/tuple.hpp>

int main(int argc, char* argv[]) {
   
  auto t2 = tao::tuple< int, double, int >( 1, 2, 3 );

  
  tao::get< 0 >( t2 ) = 0;
  tao::get< 1 >( t2 ) = 2;
  tao::get< 2 >( t2 ) = 3;

}

with the dependency: https://github.com/taocpp/tuple.git cloned to ./_deps/taotuple-src. Then I compile it with nvcc 11.4.48 and g++ 9.3.0 by

nvcc -ccbin g++-9 -I_deps/taotuple-src/include -x cu testTuple.cpp -o testTuple

and get this compilation error:

testTuple.cpp(19): error: no instance of overloaded function "tao::get" matches the argument list
            argument types are: (tao::tuple<int, double, int>)

testTuple.cpp(20): error: no instance of overloaded function "tao::get" matches the argument list
            argument types are: (tao::tuple<int, double, int>)

testTuple.cpp(21): error: no instance of overloaded function "tao::get" matches the argument list
            argument types are: (tao::tuple<int, double, int>)

I am using a5f3b87 on the main branch.