Was the C # compiler written in C ++?

Question

Was the C # compiler written in C ++?

Answer 1

Yes, but there are plans to write a C # compiler in C #, which I believe has been discussed in this podcast .

Answer 2

Yes.

The Mono C # compiler is written in C #.

Answer 3

The .NET framework was written in Simple Managed C (SMC)

Story

During the development of the .NET Framework, class libraries were originally written using a managed code compiler system called Simple Managed C (SMC). In January 1999, Anders Halesberg formed a team to create a new language at the time it was called Cool, which meant "C-like object-oriented language." [16] Microsoft believed that the name “Cool” is considered the final name of the language, but chose not to do so for trademark reasons. By the time the .NET project was published at the July conference of professional developers, the language was renamed C #, and the class libraries and the ASP.NET runtime were ported to C #.

From: http://en.wikipedia.org/wiki/C_Sharp_%28programming_language%29

Answer 4

There is a new (as of late 2011) C # and VB compiler written by Microsoft under the name Roslyn , which is written in C # and VB.NET respectively. The project page is here . The Roslyn compiler is written as a library providing a rich public API. There is a news article here about this from InfoWorld.

UPDATE: As of April 3, 2014, Roslyn is open source under the Apache 2.0 license.

Answer 5

Yes, that was - like most CLRs. If you want to see the internals of the CLR and / or compilers, I highly recommend the Microsoft CLI (aka Rotor):

• Microsoft download
• Wikipedia
• Book of internal sources

But actually there is a compiler written in C #. I think Mono is written that way. Download Mono Sources and find out for yourself.