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=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED.yTvCNOh9TRCAIcX40YItlQ.user.gioia.aioe.org!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: differences between Ada and C in gnat forcing me to use C instead of Ada Date: Mon, 25 Mar 2019 19:01:30 +0100 Organization: Aioe.org NNTP Server Message-ID: References: <2afba838-16fd-4d5b-906a-b9cd1d864ce6@googlegroups.com> NNTP-Posting-Host: yTvCNOh9TRCAIcX40YItlQ.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.0 Content-Language: en-US X-Notice: Filtered by postfilter v. 0.9.2 Xref: reader01.eternal-september.org comp.lang.ada:55961 Date: 2019-03-25T19:01:30+01:00 List-Id: On 2019-03-25 17:46, Jeffrey R. Carter wrote: > On 3/25/19 3:20 PM, Dmitry A. Kazakov wrote: >> On 2019-03-25 15:09, matthewbrentmccarty@gmail.com wrote: >> >>>        devices :  aliased  Device_Array (1..5); >>>        Status := sane_sane_h.sane_get_devices (devices(1)'Address, >>> sane_sane_h.SANE_Bool(SANE_TRUE)); >> >> How the callee should know the length of the output array? > > The same strcpy does. strcpy knows nothing about the output. That is why strncpy to be used instead. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de