Why does my compiler allow new() calls on structs?

Question

I'm running VS 2017, targeting .NET 4.6.1, C# 6.0.

public struct Foo{}

My compiler is allowing Foo bar = new Foo();

My compiler is also allowing double d = new double();

EDIT: For clarification, I'm referring to calling a parameterless constructor. Aren't parameterless constructors for structs disallowed?

Answer 1

The new operator in C# is multi-purpose, and used on both classes and structs to create new instances. It is independent of the implementation details of either.

Under the covers, C# turns the new into the IL op named newobj . newobj knows at runtime what kind of type it is dealing with and the particulars of how to allocate memory for it.