C# 7 tuples and lambdas

Question

With new c# 7 tuple syntax, is it possible to specify a lambda with a tuple as parameter and use unpacked values inside the lambda?

Example:

var list         


        

Answer 1

The program you're running into is the inability of the compiler to infer the type in this expression:

list.Select(((int x, int y) t) => t.x * 2 + t.y / 2);

But since (int, int) and (int x, int y) are the same CLR type (System.ValueType), if you specify the type parameters:

list.Select<(int x, int y), int>(t => t.x * 2 + t.y / 2);

It will work.