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From: "Alejandro R. Mosteo" <alejandro@mosteo.com>
Newsgroups: comp.lang.ada
Subject: Re: Why are Ada compilers difficult to write ?
Date: Fri, 22 Jun 2018 15:01:53 +0200
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Date: 2018-06-22T15:01:53+02:00
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On 20/06/2018 00:34, Dan'l Miller wrote:
> On Tuesday, June 19, 2018 at 4:33:38 PM UTC-5, Vincent wrote:
>> Dear Ada programers,
>>
>> I have often heard that Ada compilers where expensive because they are very difficult to write,
>> compared to Pascal or C ones. So my question is : what in the Ada language poses problem to a
>> compiler ? What are the challenges ? Where can I find documentation about that ?
>>
>> Regards,
>>
>> Vincent
> 
> The ARG mailing list (and extracts thereof, as appearing as appendix to each AI) is filled with descriptions of how over-the-top difficult some proposal is until the complexity of the proposal is whittled down.  That is the forum where the luminaries & experts of Ada-world come together to discuss that complexity-of-the-compiler topic, as represented by each Ada compiler vendor.
> 
> Also, there is this ominous house-of-cards complexity warning in C++world from the progenitor of C++ himself:
> 
> https://www.TheRegister.co.uk/2018/06/18/bjarne_stroustrup_c_plus_plus

That's an interesting read, thanks.