Path: csiph.com!weretis.net!feeder9.news.weretis.net!news.misty.com!news.iecc.com!.POSTED.news.iecc.com!nerds-end From: anton@mips.complang.tuwien.ac.at Newsgroups: comp.compilers Subject: Re: Compilation Quotient (CQ): A Metric for the Compilation Hardness of Programming Languages Date: Fri, 14 Jun 2024 16:00:06 +0000 Organization: Compilers Central Sender: johnl%iecc.com Approved: comp.compilers@iecc.com Message-ID: <24-06-019@comp.compilers> References: <24-06-003@comp.compilers> <24-06-005@comp.compilers> <24-06-011@comp.compilers> <24-06-014@comp.compilers> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="99764"; mail-complaints-to="abuse@iecc.com" Keywords: design, books Posted-Date: 16 Jun 2024 09:23:27 EDT X-submission-address: compilers@iecc.com X-moderator-address: compilers-request@iecc.com X-FAQ-and-archives: http://compilers.iecc.com Xref: csiph.com comp.compilers:3580 Derek writes: >> That is the promise of programming langauges that make it hard to get >> a program to compile: get it to compile, and it is usually correct. I >> am not aware of any empirical evidence that supports this promise. > >Requiring that variables are defined before use >decreases incorrectness (which is not a marketable term). It's not hard to get a program to compile if the compiler requires definition before use. The languages for which I have heard the claim the most are Haskell and Rust. I remember talking at a conference to someone who worked on the register allocator of IIRC SML/NJ (ML is an eager language on which the syntax and type system of Haskell are based AFAICT), and it did not sound like the promise had been achieved. I also wonder how all the correctness criteria of a register allocator could be modeled as Haskell or Rust types. >If you are interested in evidence, check out >My book, Evidence-based Software Engineering, which >discusses what is currently known about software engineering, >based on an analysis of all the publicly available data >pdf+code+all data freely available here: >http://knosof.co.uk/ESEUR/ Cool book. If only I had more time to read all the interesting books. - anton -- M. Anton Ertl anton@mips.complang.tuwien.ac.at http://www.complang.tuwien.ac.at/anton/