wiki: D on AVR

[Ernesto Castellotti]

On Thursday, 28 November 2019 at 17:37:31 UTC, H. S. Teoh wrote:
> On Thu, Nov 28, 2019 at 05:18:59PM +0000, Ernesto Castellotti 
> via Digitalmars-d-announce wrote:
>> On Thursday, 28 November 2019 at 08:31:36 UTC, Dukc wrote:
>> > On Wednesday, 27 November 2019 at 19:30:15 UTC, Ernesto 
>> > Castellotti wrote:
>> > > 
>> > > The support to targets that use 16 bits as a pointer size 
>> > > has
>> > > already been added to LDC
>> > > (https://github.com/ldc-developers/ldc/pull/2194), so 
>> > > minimal AVR
>> > > support is present (AVR uses 16 bit pointers).
>> > 
>> > Don't you run into trouble with the fact that the defualt 
>> > integer size is 32 bits?
>> In LDC, the integers size depends on the target architecture.
>> 
>> https://github.com/ldc-developers/ldc/blob/0a1a40ebc7ee29b02a6e92daa389e3c5611f086f/gen/tollvm.cpp#L259
>
> Isn't this only for size_t?  Because 'int' in D is always 
> 32-bit according to the spec. I can't imagine LDC would 
> deliberately violate the spec this way.
>
>
> T

Yes LDC sets size_t for the platform, not violating the spec.
int in D is 32-bit as you said, that if you compare it with the 
size of the types of AVR-GCC it would be long,
This is not a problem, just use the type aliases like those in 
core.stdc.stdint to work around