D not considered memory safe

[Lance Bachmeier]

On Thursday, 4 July 2024 at 07:11:13 UTC, Sebastian Nibisz wrote:
> On Thursday, 4 July 2024 at 02:00:52 UTC, Richard (Rikki) 
> Andrew Cattermole wrote:
>> ``-preview=dip1000``
>>
>> ```d
>> @safe:
>>
>> ref int bar(ref int x) => x;
>>
>> ref int foo()
>> {
>>     int i = 0;
>>     return bar(i);
>> }
>>
>> void main() {
>>     int* v = &foo();
>> }
>> ```
>>
>> ```
>> <source>(3): Error: returning `x` escapes a reference to 
>> parameter `x`
>> <source>(3):        perhaps annotate the parameter with 
>> `return`
>> ```
>>
>> And when annotated:
>>
>> ```
>> <source>(8): Error: returning `bar(i)` escapes a reference to 
>> local variable `i`
>> ```
>
> An unsafe programming language is one that allows to write 
> unsafe code by default. If D is to be more safe, then @safe 
> should be the default and @unsafe optional.

Safety isn't important to anyone that can't be troubled to write 
`-preview=dip1000`.