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=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,d8a4797a79f9c90f X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-05-26 07:31:03 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news.uchicago.edu!yellow.newsread.com!netaxs.com!newsread.com!panix!newsfeed!news.tele.dk!news.tele.dk!small.news.tele.dk!uninett.no!ntnu.no!not-for-mail From: Preben Randhol Newsgroups: comp.lang.ada Subject: Re: I/O - exception handling Date: Mon, 26 May 2003 14:31:02 +0000 (UTC) Organization: Norwegian university of science and technology Message-ID: References: NNTP-Posting-Host: kiuk0152.chembio.ntnu.no X-Trace: tyfon.itea.ntnu.no 1053959462 24149 129.241.83.78 (26 May 2003 14:31:02 GMT) X-Complaints-To: usenet@itea.ntnu.no NNTP-Posting-Date: Mon, 26 May 2003 14:31:02 +0000 (UTC) User-Agent: slrn/0.9.7.4 (Linux) Xref: archiver1.google.com comp.lang.ada:37788 Date: 2003-05-26T14:31:02+00:00 List-Id: Preben Randhol wrote: > Sergey Koshcheyev wrote: >>> In stead of when others => why don't you check which exception >>> occurred? >>> >>> You have Name_Error, Use_Error, Device_Error, End_Error etc... >> >> For simplicity - currently it's enough for me just to know that something >> failed. And besides, I don't think it would solve the problem, even if I >> checked for specific exceptions. > > Well I don't know what you are doing, but I would have checked so I > could give some feedback as to what the problem is. > > > I do this check in my application so the user can get propper feedback: > > > exception > when Name_Error => > Dialogs.Warning > (Title => -"Could not find file", > Message => -"The file you requested :" & ASCII.LF & > ASCII.LF & filename & ASCII.LF & ASCII.LF & > (-"Could not be found. Please check that "& > "you spelt the filename correctly."), > Has_Main => True); > > when Use_Error => > Dialogs.Warning > (Title => -"Could not open file", > Message => -"The file you requested :" & ASCII.LF & > ASCII.LF & filename & ASCII.LF & ASCII.LF & > (-"Could not be opened. Please check that "& > "you have permission to read this file."), > Has_Main => True); > > when Device_Error | End_Error => > Dialogs.Warning > (Title => -"Could not open file", > Message => -"The file you requested :" & ASCII.LF & > ASCII.LF & filename & ASCII.LF & ASCII.LF & > (-"Could not be opened. Please check that "& > "it is a valid file."), > Has_Main => True); > when E : others => > Dialogs.Error_Report > (Error => > (-"An unexpected error occurred while trying to open ") & > ASCII.LF & ASCII.LF & filename & > ASCII.LF & ASCII.LF & "Please Report this!" & > ASCII.LF & ASCII.LF & Exception_Information (E)); > end; Actually this is some old code as I rewrote it to use enumerations later. -- Preben Randhol http://www.pvv.org/~randhol/