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Mailbox/MIME Entity  |  1996-08-06  |  1.4 KB

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This file was processed as: Mailbox/MIME Entity (archive/mbox).

ConfidenceProgramDetectionMatch TypeSupport
100% dexvert Newsgroup Content (archive/news) magic Supported
100% dexvert Mailbox/MIME Entity (archive/mbox) magic Supported
100% dexvert Internet Message Format (text/imf) magic Supported
1% dexvert Text File (text/txt) fallback Supported
100% file news, ASCII text default
100% checkBytes Printable ASCII default
100% dexmagic PrintFox/Pagefox WEAK default
100% perlTextCheck Likely Text (Perl) default
100% siegfried fmt/950 MIME Email (1.0) default
100% detectItEasy Format: plain text[LF] default (weak)
100% xdgMime message/news default



hex view
+--------+-------------------------+-------------------------+--------+--------+
|00000000| 50 61 74 68 3a 20 6e 65 | 77 73 68 75 62 2e 63 74 |Path: ne|wshub.ct|
|00000010| 73 2e 63 6f 6d 21 75 73 | 65 6e 65 74 0a 46 72 6f |s.com!us|enet.Fro|
|00000020| 6d 3a 20 22 53 74 65 76 | 65 6e 20 4b 2e 20 53 68 |m: "Stev|en K. Sh|
|00000030| 61 72 70 22 20 3c 73 6b | 73 68 61 72 70 40 63 74 |arp" <sk|sharp@ct|
|00000040| 73 2e 63 6f 6d 3e 0a 4e | 65 77 73 67 72 6f 75 70 |s.com>.N|ewsgroup|
|00000050| 73 3a 20 63 6f 6d 70 2e | 6c 61 6e 67 2e 63 2b 2b |s: comp.|lang.c++|
|00000060| 0a 53 75 62 6a 65 63 74 | 3a 20 4e 6f 6e 2d 73 74 |.Subject|: Non-st|
|00000070| 61 6e 64 61 72 64 20 65 | 78 63 65 70 74 69 6f 6e |andard e|xception|
|00000080| 20 68 61 6e 64 6c 69 6e | 67 0a 44 61 74 65 3a 20 | handlin|g.Date: |
|00000090| 53 75 6e 2c 20 32 31 20 | 4a 61 6e 20 31 39 39 36 |Sun, 21 |Jan 1996|
|000000a0| 20 32 31 3a 34 33 3a 35 | 39 20 2b 30 30 30 30 0a | 21:43:5|9 +0000.|
|000000b0| 4f 72 67 61 6e 69 7a 61 | 74 69 6f 6e 3a 20 4c 6f |Organiza|tion: Lo|
|000000c0| 73 74 20 43 61 75 73 65 | 20 53 6f 66 74 77 61 72 |st Cause| Softwar|
|000000d0| 65 0a 4d 65 73 73 61 67 | 65 2d 49 44 3a 20 3c 33 |e.Messag|e-ID: <3|
|000000e0| 31 30 32 42 33 39 46 2e | 33 43 43 39 40 63 74 73 |102B39F.|3CC9@cts|
|000000f0| 2e 63 6f 6d 3e 0a 52 65 | 70 6c 79 2d 54 6f 3a 20 |.com>.Re|ply-To: |
|00000100| 73 6b 73 68 61 72 70 40 | 63 74 73 2e 63 6f 6d 0a |sksharp@|cts.com.|
|00000110| 4e 4e 54 50 2d 50 6f 73 | 74 69 6e 67 2d 48 6f 73 |NNTP-Pos|ting-Hos|
|00000120| 74 3a 20 6c 6f 73 74 63 | 61 75 73 65 2e 63 74 73 |t: lostc|ause.cts|
|00000130| 2e 63 6f 6d 0a 4d 69 6d | 65 2d 56 65 72 73 69 6f |.com.Mim|e-Versio|
|00000140| 6e 3a 20 31 2e 30 0a 43 | 6f 6e 74 65 6e 74 2d 54 |n: 1.0.C|ontent-T|
|00000150| 79 70 65 3a 20 74 65 78 | 74 2f 70 6c 61 69 6e 3b |ype: tex|t/plain;|
|00000160| 20 63 68 61 72 73 65 74 | 3d 75 73 2d 61 73 63 69 | charset|=us-asci|
|00000170| 69 0a 43 6f 6e 74 65 6e | 74 2d 54 72 61 6e 73 66 |i.Conten|t-Transf|
|00000180| 65 72 2d 45 6e 63 6f 64 | 69 6e 67 3a 20 37 62 69 |er-Encod|ing: 7bi|
|00000190| 74 0a 58 2d 4d 61 69 6c | 65 72 3a 20 4d 6f 7a 69 |t.X-Mail|er: Mozi|
|000001a0| 6c 6c 61 20 32 2e 30 62 | 35 20 28 4d 61 63 69 6e |lla 2.0b|5 (Macin|
|000001b0| 74 6f 73 68 3b 20 49 3b | 20 50 50 43 29 0a 0a 52 |tosh; I;| PPC)..R|
|000001c0| 65 63 65 6e 74 6c 79 2c | 20 49 27 76 65 20 62 65 |ecently,| I've be|
|000001d0| 65 6e 20 65 78 70 6f 73 | 65 64 20 74 6f 20 61 20 |en expos|ed to a |
|000001e0| 6d 65 74 68 6f 64 20 6f | 66 20 68 61 6e 64 6c 69 |method o|f handli|
|000001f0| 6e 67 20 65 78 63 65 70 | 74 69 6f 6e 73 20 0a 74 |ng excep|tions .t|
|00000200| 68 61 74 27 73 20 70 72 | 65 74 74 79 20 74 72 69 |hat's pr|etty tri|
|00000210| 63 6b 79 2e 20 20 49 6e | 73 74 65 61 64 20 6f 66 |cky. In|stead of|
|00000220| 20 75 73 69 6e 67 20 74 | 72 79 2c 20 74 68 72 6f | using t|ry, thro|
|00000230| 77 2c 20 61 6e 64 20 63 | 61 74 63 68 2c 20 74 68 |w, and c|atch, th|
|00000240| 65 79 20 0a 75 73 65 3a | 0a 0a 64 6f 20 7b 0a 09 |ey .use:|..do {..|
|00000250| 09 09 63 6f 64 65 3b 0a | 09 09 09 69 66 20 28 20 |..code;.|...if ( |
|00000260| 73 6f 6d 65 45 78 63 65 | 70 74 69 6f 6e 20 29 0a |someExce|ption ).|
|00000270| 09 09 09 09 09 09 09 62 | 72 65 61 6b 3b 0a 09 09 |.......b|reak;...|
|00000280| 09 63 6f 64 65 3b 0a 7d | 20 77 68 69 6c 65 20 28 |.code;.}| while (|
|00000290| 20 46 41 4c 53 45 20 29 | 3b 0a 0a 57 68 69 6c 65 | FALSE )|;..While|
|000002a0| 20 74 68 69 73 20 69 73 | 20 74 72 69 63 6b 20 61 | this is| trick a|
|000002b0| 6e 64 20 64 6f 65 73 6e | 27 74 20 69 6e 76 6f 6c |nd doesn|'t invol|
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|000002d0| 70 74 69 6f 6e 20 68 61 | 6e 64 6c 69 6e 67 20 0a |ption ha|ndling .|
|000002e0| 28 77 68 69 63 68 20 74 | 68 65 79 20 73 61 79 20 |(which t|hey say |
|000002f0| 62 6c 6f 61 74 73 20 61 | 6e 64 20 73 6c 6f 77 73 |bloats a|nd slows|
|00000300| 20 64 6f 77 6e 20 74 68 | 65 69 72 20 63 6f 64 65 | down th|eir code|
|00000310| 29 20 69 74 20 64 6f 65 | 73 6e 27 74 20 73 65 65 |) it doe|sn't see|
|00000320| 6d 20 0a 71 75 69 74 65 | 20 6b 6f 73 68 65 72 20 |m .quite| kosher |
|00000330| 61 6e 64 20 72 65 65 6b | 73 20 6f 66 20 22 67 6f |and reek|s of "go|
|00000340| 74 6f 2e 22 20 20 54 68 | 65 79 20 75 73 65 20 69 |to." Th|ey use i|
|00000350| 74 20 6c 69 62 65 72 61 | 6c 6c 79 20 69 6e 20 74 |t libera|lly in t|
|00000360| 68 65 69 72 20 0a 63 6f | 64 65 20 61 6e 64 20 69 |heir .co|de and i|
|00000370| 6e 20 6d 6f 73 74 20 63 | 69 72 63 75 6d 73 74 61 |n most c|ircumsta|
|00000380| 6e 63 65 73 20 74 68 65 | 79 20 64 6f 6e 27 74 20 |nces the|y don't |
|00000390| 63 68 65 63 6b 20 61 74 | 20 74 68 65 20 65 6e 64 |check at| the end|
|000003a0| 20 6f 66 20 74 68 65 20 | 0a 77 68 69 6c 65 2e 0a | of the |.while..|
|000003b0| 0a 49 20 66 65 65 6c 20 | 74 68 61 74 20 74 68 65 |.I feel |that the|
|000003c0| 79 20 73 68 6f 75 6c 64 | 20 62 65 20 75 73 69 6e |y should| be usin|
|000003d0| 67 20 65 78 63 65 70 74 | 69 6f 6e 73 20 74 6f 20 |g except|ions to |
|000003e0| 68 61 6e 64 6c 65 20 74 | 68 65 73 65 20 74 68 69 |handle t|hese thi|
|000003f0| 6e 67 73 2e 20 20 0a 49 | 74 27 73 20 6d 6f 72 65 |ngs. .I|t's more|
|00000400| 20 75 6e 64 65 72 73 74 | 6f 6f 64 20 61 6e 64 20 | underst|ood and |
|00000410| 67 65 6e 65 72 61 6c 6c | 79 20 63 6c 65 61 6e 65 |generall|y cleane|
|00000420| 72 2e 20 20 49 74 20 61 | 6c 73 6f 20 66 6f 72 63 |r. It a|lso forc|
|00000430| 65 73 20 68 61 6e 64 6c | 69 6e 67 20 0a 6f 66 20 |es handl|ing .of |
|00000440| 74 68 65 20 65 78 63 65 | 70 74 69 6f 6e 20 72 61 |the exce|ption ra|
|00000450| 74 68 65 72 20 74 68 61 | 6e 20 62 65 69 6e 67 20 |ther tha|n being |
|00000460| 61 62 6c 65 20 74 6f 20 | 73 6b 69 70 20 61 6e 79 |able to |skip any|
|00000470| 20 65 72 72 6f 72 20 68 | 61 6e 64 6c 69 6e 67 2e | error h|andling.|
|00000480| 0a 0a 57 68 69 63 68 20 | 6c 65 61 64 73 20 74 6f |..Which |leads to|
|00000490| 20 6f 74 68 65 72 20 71 | 75 65 73 74 69 6f 6e 73 | other q|uestions|
|000004a0| 2e 20 20 57 68 65 6e 20 | 73 68 6f 75 6c 64 20 79 |. When |should y|
|000004b0| 6f 75 20 74 68 72 6f 77 | 20 61 6e 20 65 78 63 65 |ou throw| an exce|
|000004c0| 70 74 69 6f 6e 3f 20 20 | 0a 53 68 6f 75 6c 64 20 |ption? |.Should |
|000004d0| 74 68 65 79 20 6f 6e 6c | 79 20 62 65 20 74 68 72 |they onl|y be thr|
|000004e0| 6f 77 6e 20 77 68 65 6e | 20 74 68 65 20 70 72 6f |own when| the pro|
|000004f0| 67 72 61 6d 20 69 73 20 | 69 6e 20 73 75 63 68 20 |gram is |in such |
|00000500| 61 20 73 74 61 74 65 20 | 74 68 61 74 20 0a 79 6f |a state |that .yo|
|00000510| 75 20 68 61 76 65 20 6e | 6f 20 69 64 65 61 20 77 |u have n|o idea w|
|00000520| 68 61 74 27 73 20 67 6f | 69 6e 67 20 6f 6e 3f 20 |hat's go|ing on? |
|00000530| 20 48 6f 77 20 6d 75 63 | 68 20 63 6f 64 65 20 64 | How muc|h code d|
|00000540| 6f 65 73 20 61 20 74 72 | 79 2f 63 61 74 63 68 20 |oes a tr|y/catch |
|00000550| 0a 62 6c 6f 63 6b 20 61 | 64 64 20 6f 76 65 72 20 |.block a|dd over |
|00000560| 69 66 2f 65 6c 73 65 3f | 0a 0a 41 6e 79 20 63 6f |if/else?|..Any co|
|00000570| 6d 6d 65 6e 74 73 20 61 | 72 65 20 67 72 65 61 74 |mments a|re great|
|00000580| 6c 79 20 61 70 70 72 65 | 63 69 61 74 65 64 2e 0a |ly appre|ciated..|
|00000590| 0a 54 49 41 2c 0a 53 74 | 65 76 65 6e 0a |.TIA,.St|even. |
+--------+-------------------------+-------------------------+--------+--------+