DIP60: @nogc attribute

[paulo Pinto via Digitalmars-d]

On Wednesday, 16 April 2014 at 22:11:23 UTC, froglegs wrote:
>
>> I am really looking forward to .NET Native becoming widespread.
>>
>> Then this type of comparisons (C# vs C++) will be quite 
>> different.
>
>
>  I don't think it will make a major difference. Taking a GC 
> based language and giving it a native compiler doesn't 
> automatically make it performance competitive with C++(see 
> Haskel and D(without dumping GC) on anything besides micro 
> bench marks).
>
> C# is still GC based, still makes heavy use of indirection(See 
> Herb Sutters recent talk on arrays).


Also possible in C# with structs, interop annotations and unsafe 
blocks.

Don't forget that Herb Sutters also has a C++ agenda to sell.

>
> C++ exposes SSE/AVX intrinsics, C# does not.

That is not correct.

1 - Nowhere in the ANSI/ISO C++ are SSE/AVX intrinsics defined, 
those are compiler extensions. So equal foot with the C# EMCA 
standard;

2 - .NET Native makes use of Visual C++'s backend with all the 
automatic vectorization and other code generation optimizations 
Visual C++ developers enjoy;

3 - .NET Native and RyuJIT have official support for SIMD 
instructions, GPGPU support is also planned

--
Paulo