Replacing C's memcpy with a D implementation

[Mike Franklin]

On Sunday, 10 June 2018 at 13:05:33 UTC, Nicholas Wilson wrote:
> On Sunday, 10 June 2018 at 12:49:31 UTC, Mike Franklin wrote:
>> I'm exploring the possibility of implementing some of the 
>> basic software building blocks (memcpy, memcmp, memmove, 
>> etc...) that D utilizes from the C library with D 
>> implementations.  There are many reasons to do this, one of 
>> which is to leverage information available at compile-time and 
>> in D's type system (type sizes, alignment, etc...) in order to 
>> optimize the implementation of these functions, and allow them 
>> to be used from @safe code.
>>
>> [...]
>
> what compiler? what flags?

dmd main.d
Arch Linux x86_64

DMD, with no flags.  I'm not compiling C's memcpy, and the 
significant D implementation is memcpyASM which is all inline 
assembly, so I don't see how the compiler flags will make any 
difference, anyway.

Mike