C# 7 and .NET Core 2.0 High Performance

Understanding MSIL, CLI, CTS, and CLS

When we build our project, the code is compiled into the Intermediate Language (IL), also known as Microsoft Intermediate Language (MSIL). MSIL is compliant with the Common Language Infrastructure (CLI), where CLI is the standard that provides a common type system and a language specification, respectively known as the Common Type System (CTS) and Common Language Specification (CLS).

The CTS provides a common type system and compiles the language-specific types into the compliant data types. It standardizes all the .NET languages' data types to a common data type for language interoperability. For example, if the code is written in C#, it will be converted to the specific CTS.

Suppose we have two variables, ...