From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD, FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,486d4972706e99db X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!postnews.google.com!v15g2000yqe.googlegroups.com!not-for-mail From: Phil Thornley Newsgroups: comp.lang.ada Subject: Re: Bug rate and choice of programming language Date: Tue, 10 Aug 2010 13:53:25 -0700 (PDT) Organization: http://groups.google.com Message-ID: <3e1c5adb-a0b8-4ffd-9268-fcaa2e3ad13c@v15g2000yqe.googlegroups.com> References: <9b242840-3400-4d5c-aa1e-db238701aebe@l6g2000yqb.googlegroups.com> NNTP-Posting-Host: 80.177.171.182 Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: posting.google.com 1281473605 18528 127.0.0.1 (10 Aug 2010 20:53:25 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Tue, 10 Aug 2010 20:53:25 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: v15g2000yqe.googlegroups.com; posting-host=80.177.171.182; posting-account=Fz1-yAoAAACc1SDCr-Py2qBj8xQ-qC2q User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C),gzip(gfe) Xref: g2news1.google.com comp.lang.ada:13084 Date: 2010-08-10T13:53:25-07:00 List-Id: On 10 Aug, 14:22, Maciej Sobczak wrote: [...] > This page seems to refer to some paper with an assessment of > programming languages for safety critical systems with the conclusion > that the choice of programming language has little impact on the > resulting bug rate and what actually matters is the programmer's > fluency in using it. [...] > References to other research results in this domain would be highly > welcome. The above paper alone is very suggestive, but certainly not > exhaustive. There's this paper in CrossTalk, from 2003 - which comes to very different conclusions to Les Hatton's paper (see the table about 2/3 into the paper). http://www.stsc.hill.af.mil/crosstalk/2003/11/0311german.html "Table 1 shows that the poorest language for safety-critical applications is C with consistently high anomaly rates. The best language found is SPARK (Ada), which consistently achieves one anomaly per 250 software lines of code. The average number of safety-critical anomalies found is a small percentage of the overall anomalies found with about 1 percent identified as having safety implications. Automatically generated code was found to have considerably reduced syntactic and data flow errors." Cheers, Phil