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From: Florian Weimer <fw@deneb.enyo.de>
Newsgroups: comp.lang.ada
Subject: Re: Intervention needed?
Date: Fri, 29 Mar 2019 23:35:02 +0100
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Xref: reader01.eternal-september.org comp.lang.ada:56010
Date: 2019-03-29T23:35:02+01:00
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* Randy Brukardt:

>>"Florian Weimer" <fw@deneb.enyo.de> wrote in message 
>>news:87sgv5k1j5.fsf@mid.deneb.enyo.de...
>>* Randy Brukardt:
>>
>>> But a better question is whether the Rust borrow checker allows
>>> building proper ADTs for most data structures.
>>
>> The Rust standard library uses unsafe extensively in the
>> implementation of containers.  I'm not sure if this is a problem.
>> Most languages have this property (that the standard library cannot be
>> implemented in the language itself).
>>
>> For container libraries, the only widely-used counter-example (of
>> which I'm aware) is pre-generic Java.
>
> You're saying Ada isn't widely used? And I thought the STL was implemented 
> in C++.

The GNAT implementation doesn't seem particularly memory-safe to me,
looking at Ada.Containers.Bounded_Ordered_Maps (which picked more or
less at random).