home *** CD-ROM | disk | FTP | other *** search
open in:
MacOS 8.1
|
Win98
|
DOS
browse contents |
view JSON data
|
view as text
This file was processed as: Mailbox/MIME Entity
(archive/mbox).
Confidence | Program | Detection | Match Type | Support
|
---|
100%
| dexvert
| Mailbox/MIME Entity (archive/mbox)
| magic
| Supported |
1%
| dexvert
| Text File (text/txt)
| fallback
| Supported |
100%
| file
| ASCII text
| default
| |
100%
| checkBytes
| Printable ASCII
| default
| |
100%
| perlTextCheck
| Likely Text (Perl)
| default
| |
100%
| siegfried
| fmt/950 MIME Email (1.0)
| default
| |
100%
| detectItEasy
| Format: plain text[LF]
| default (weak)
|
|
hex view+--------+-------------------------+-------------------------+--------+--------+
|00000000| 4e 65 77 73 67 72 6f 75 | 70 73 3a 20 63 6f 6d 70 |Newsgrou|ps: comp|
|00000010| 2e 61 72 63 68 2e 61 72 | 69 74 68 6d 65 74 69 63 |.arch.ar|ithmetic|
|00000020| 2c 63 6f 6d 70 2e 6c 61 | 6e 67 2e 63 2c 63 6f 6d |,comp.la|ng.c,com|
|00000030| 70 2e 6c 61 6e 67 2e 63 | 2b 2b 0a 50 61 74 68 3a |p.lang.c|++.Path:|
|00000040| 20 55 74 72 65 63 68 74 | 2e 4e 4c 2e 6e 65 74 21 | Utrecht|.NL.net!|
|00000050| 6e 65 77 73 0a 46 72 6f | 6d 3a 20 46 72 61 6e 7a |news.Fro|m: Franz|
|00000060| 20 4b 6f 72 6e 74 6e 65 | 72 20 3c 66 6b 6f 72 6e | Korntne|r <fkorn|
|00000070| 74 6e 65 40 62 61 7a 69 | 73 2e 6e 6c 3e 0a 53 75 |tne@bazi|s.nl>.Su|
|00000080| 62 6a 65 63 74 3a 20 52 | 65 3a 20 41 63 63 65 73 |bject: R|e: Acces|
|00000090| 73 20 63 61 72 72 79 20 | 66 6c 61 67 20 66 72 6f |s carry |flag fro|
|000000a0| 6d 20 43 0a 58 2d 4e 6e | 74 70 2d 50 6f 73 74 69 |m C.X-Nn|tp-Posti|
|000000b0| 6e 67 2d 48 6f 73 74 3a | 20 62 61 73 74 69 6f 6e |ng-Host:| bastion|
|000000c0| 31 2e 62 61 7a 69 73 2e | 6e 6c 0a 43 6f 6e 74 65 |1.bazis.|nl.Conte|
|000000d0| 6e 74 2d 54 79 70 65 3a | 20 74 65 78 74 2f 70 6c |nt-Type:| text/pl|
|000000e0| 61 69 6e 3b 20 63 68 61 | 72 73 65 74 3d 75 73 2d |ain; cha|rset=us-|
|000000f0| 61 73 63 69 69 0a 54 6f | 3a 20 53 74 65 76 65 20 |ascii.To|: Steve |
|00000100| 53 75 6c 6c 69 76 61 6e | 20 3c 73 75 6c 6c 69 76 |Sullivan| <sulliv|
|00000110| 61 6e 40 69 6e 64 72 61 | 2e 63 6f 6d 3e 0a 4d 65 |an@indra|.com>.Me|
|00000120| 73 73 61 67 65 2d 49 44 | 3a 20 3c 33 31 32 39 38 |ssage-ID|: <31298|
|00000130| 44 32 30 2e 34 31 43 36 | 40 62 61 7a 69 73 2e 6e |D20.41C6|@bazis.n|
|00000140| 6c 3e 0a 53 65 6e 64 65 | 72 3a 20 6e 65 77 73 40 |l>.Sende|r: news@|
|00000150| 69 6e 74 65 72 2e 4e 4c | 2e 6e 65 74 20 28 4e 65 |inter.NL|.net (Ne|
|00000160| 77 73 20 61 74 20 6e 65 | 77 73 75 74 72 29 0a 43 |ws at ne|wsutr).C|
|00000170| 6f 6e 74 65 6e 74 2d 54 | 72 61 6e 73 66 65 72 2d |ontent-T|ransfer-|
|00000180| 45 6e 63 6f 64 69 6e 67 | 3a 20 37 62 69 74 0a 4f |Encoding|: 7bit.O|
|00000190| 72 67 61 6e 69 7a 61 74 | 69 6f 6e 3a 20 4e 4c 6e |rganizat|ion: NLn|
|000001a0| 65 74 0a 52 65 66 65 72 | 65 6e 63 65 73 3a 20 3c |et.Refer|ences: <|
|000001b0| 44 6e 31 43 39 7a 2e 44 | 47 76 2e 30 2e 6e 65 74 |Dn1C9z.D|Gv.0.net|
|000001c0| 40 69 6e 64 72 61 2e 63 | 6f 6d 3e 20 3c 31 39 39 |@indra.c|om> <199|
|000001d0| 36 46 65 62 31 39 32 32 | 2e 31 37 2e 31 39 2e 38 |6Feb1922|.17.19.8|
|000001e0| 37 39 40 6b 6f 6f 62 65 | 72 61 2e 6d 61 74 68 2e |79@koobe|ra.math.|
|000001f0| 75 69 63 2e 65 64 75 3e | 0a 4d 69 6d 65 2d 56 65 |uic.edu>|.Mime-Ve|
|00000200| 72 73 69 6f 6e 3a 20 31 | 2e 30 0a 44 61 74 65 3a |rsion: 1|.0.Date:|
|00000210| 20 54 75 65 2c 20 32 30 | 20 46 65 62 20 31 39 39 | Tue, 20| Feb 199|
|00000220| 36 20 30 38 3a 35 38 3a | 30 38 20 47 4d 54 0a 58 |6 08:58:|08 GMT.X|
|00000230| 2d 4d 61 69 6c 65 72 3a | 20 4d 6f 7a 69 6c 6c 61 |-Mailer:| Mozilla|
|00000240| 20 32 2e 30 62 36 61 20 | 28 58 31 31 3b 20 49 3b | 2.0b6a |(X11; I;|
|00000250| 20 4f 53 46 31 20 56 33 | 2e 32 20 61 6c 70 68 61 | OSF1 V3|.2 alpha|
|00000260| 29 0a 0a 53 74 65 76 65 | 20 53 75 6c 6c 69 76 61 |)..Steve| Sulliva|
|00000270| 6e 20 3c 73 75 6c 6c 69 | 76 61 6e 40 69 6e 64 72 |n <sulli|van@indr|
|00000280| 61 2e 63 6f 6d 3e 20 77 | 72 6f 74 65 3a 0a 3e 20 |a.com> w|rote:.> |
|00000290| 20 20 20 69 20 3d 20 6a | 20 2b 20 6b 3b 0a 3e 20 | i = j| + k;.> |
|000002a0| 20 20 20 69 66 20 28 6f | 76 65 72 66 6c 6f 77 65 | if (o|verflowe|
|000002b0| 64 29 20 2e 2e 2e 2e 3b | 0a 0a 59 65 73 20 74 68 |d) ....;|..Yes th|
|000002c0| 65 72 65 20 69 73 20 61 | 20 6d 65 74 68 6f 64 2e |ere is a| method.|
|000002d0| 20 0a 0a 6a 2b 6b 20 77 | 69 6c 6c 20 6f 76 65 72 | ..j+k w|ill over|
|000002e0| 66 6c 6f 77 20 77 68 65 | 6e 20 74 68 65 20 72 65 |flow whe|n the re|
|000002f0| 73 75 6c 74 20 65 78 63 | 65 65 64 73 20 4d 41 58 |sult exc|eeds MAX|
|00000300| 49 4e 54 0a 0a 54 68 75 | 73 3a 20 20 22 69 66 20 |INT..Thu|s: "if |
|00000310| 28 6a 2b 6b 20 3e 20 4d | 41 58 49 4e 54 29 20 6f |(j+k > M|AXINT) o|
|00000320| 76 65 72 66 6c 6f 77 28 | 29 3b 22 20 62 75 74 20 |verflow(|);" but |
|00000330| 74 68 65 20 6f 70 65 72 | 61 74 69 6f 6e 20 69 73 |the oper|ation is|
|00000340| 20 75 6e 64 65 66 69 6e | 65 64 0a 69 66 20 74 68 | undefin|ed.if th|
|00000350| 65 20 72 65 73 75 6c 74 | 20 6f 76 65 72 66 6c 6f |e result| overflo|
|00000360| 77 73 2c 20 73 6f 20 74 | 68 65 20 65 78 70 72 65 |ws, so t|he expre|
|00000370| 73 73 69 6f 6e 20 6e 65 | 65 64 73 20 72 65 77 72 |ssion ne|eds rewr|
|00000380| 69 74 69 6e 67 20 74 6f | 20 6d 61 6b 65 20 73 75 |iting to| make su|
|00000390| 72 65 0a 74 68 69 73 20 | 64 6f 65 73 6e 27 74 20 |re.this |doesn't |
|000003a0| 68 61 70 70 65 6e 2e 20 | 54 68 65 20 72 65 73 75 |happen. |The resu|
|000003b0| 6c 74 20 69 73 20 74 68 | 65 6e 20 22 69 66 20 28 |lt is th|en "if (|
|000003c0| 6a 3e 4d 41 58 49 4e 54 | 2d 6b 29 20 6f 76 65 72 |j>MAXINT|-k) over|
|000003d0| 66 6c 6f 77 28 29 3b 22 | 2e 0a 0a 41 73 73 75 6d |flow();"|...Assum|
|000003e0| 69 6e 67 20 73 69 7a 65 | 6f 66 28 69 6e 74 29 20 |ing size|of(int) |
|000003f0| 3d 3d 20 34 20 61 6e 64 | 20 69 2c 6a 2c 6b 20 61 |== 4 and| i,j,k a|
|00000400| 72 65 20 61 6c 6c 20 75 | 6e 73 69 67 6e 65 64 20 |re all u|nsigned |
|00000410| 69 6e 74 73 20 74 68 65 | 6e 20 0a 0a 23 64 65 66 |ints the|n ..#def|
|00000420| 69 6e 65 20 4d 41 58 49 | 4e 54 20 30 78 46 46 46 |ine MAXI|NT 0xFFF|
|00000430| 46 46 46 46 46 0a 0a 20 | 20 69 66 20 28 6a 3e 4d |FFFFF.. | if (j>M|
|00000440| 41 58 49 4e 54 2d 6b 29 | 0a 20 20 20 20 6f 76 65 |AXINT-k)|. ove|
|00000450| 72 66 6c 6f 77 28 29 3b | 0a 20 20 65 6c 73 65 0a |rflow();|. else.|
|00000460| 20 20 20 20 69 20 3d 20 | 6a 2b 6b 3b 0a 0a 48 6f | i = |j+k;..Ho|
|00000470| 77 65 76 65 72 20 69 66 | 20 69 2c 6a 2c 6b 20 61 |wever if| i,j,k a|
|00000480| 72 65 20 73 69 67 6e 65 | 64 20 69 6e 74 27 73 20 |re signe|d int's |
|00000490| 74 68 65 6e 20 74 68 65 | 20 63 6f 64 65 20 77 69 |then the| code wi|
|000004a0| 6c 6c 20 6c 6f 6f 6b 20 | 73 6f 6d 65 74 68 69 6e |ll look |somethin|
|000004b0| 67 20 6c 69 6b 65 3a 0a | 0a 23 64 65 66 69 6e 65 |g like:.|.#define|
|000004c0| 20 4d 41 58 49 4e 54 20 | 28 2b 32 31 34 37 34 38 | MAXINT |(+214748|
|000004d0| 33 36 34 37 29 0a 23 64 | 65 66 69 6e 65 20 4d 49 |3647).#d|efine MI|
|000004e0| 4e 49 4e 54 20 28 2d 32 | 31 34 37 34 38 33 36 34 |NINT (-2|14748364|
|000004f0| 38 29 0a 0a 20 20 69 66 | 20 28 69 20 3e 20 30 20 |8).. if| (i > 0 |
|00000500| 26 26 20 6a 20 3e 20 30 | 20 26 26 20 6a 3e 4d 41 |&& j > 0| && j>MA|
|00000510| 58 49 4e 54 2d 6b 29 0a | 20 20 20 20 6f 76 65 72 |XINT-k).| over|
|00000520| 66 6c 6f 77 28 29 3b 0a | 20 20 65 6c 73 65 20 69 |flow();.| else i|
|00000530| 66 20 28 69 20 3c 20 30 | 20 26 26 20 6a 20 3c 20 |f (i < 0| && j < |
|00000540| 30 20 26 26 20 6a 3c 4d | 49 4e 49 4e 54 2d 6b 29 |0 && j<M|ININT-k)|
|00000550| 0a 20 20 20 20 6f 76 65 | 72 66 6c 6f 77 28 29 3b |. ove|rflow();|
|00000560| 0a 20 20 65 6c 73 65 0a | 20 20 20 20 69 20 3d 20 |. else.| i = |
|00000570| 6a 2b 6b 3b 0a 20 20 0a | 48 6f 70 65 20 74 68 69 |j+k;. .|Hope thi|
|00000580| 73 20 68 65 6c 70 73 2e | 0a 0a 2d 2d 20 0a 2b 2d |s helps.|..-- .+-|
|00000590| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000005a0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000005b0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000005c0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000005d0| 2d 2d 2d 2d 2d 2d 2b 0a | 7c 20 46 72 61 6e 7a 20 |------+.|| Franz |
|000005e0| 4b 6f 72 6e 74 6e 65 72 | 20 61 74 20 42 41 5a 49 |Korntner| at BAZI|
|000005f0| 53 2c 20 64 65 70 74 2e | 20 53 79 73 74 65 6d 20 |S, dept.| System |
|00000600| 44 65 76 65 6c 6f 70 6d | 65 6e 74 2c 20 4c 65 69 |Developm|ent, Lei|
|00000610| 64 65 6e 2c 20 4e 65 74 | 68 65 72 6c 61 6e 64 73 |den, Net|herlands|
|00000620| 7c 0a 7c 20 45 2d 6d 61 | 69 6c 3a 20 66 6b 6f 72 ||.| E-ma|il: fkor|
|00000630| 6e 74 6e 65 40 68 69 73 | 63 6f 6d 2e 6e 6c 20 20 |ntne@his|com.nl |
|00000640| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000650| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000660| 20 20 20 20 20 20 20 20 | 20 20 7c 0a 2b 2d 2d 2d | | |.+---|
|00000670| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000680| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00000690| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000006a0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000006b0| 2d 2d 2d 2d 2b 0a | |----+. | |
+--------+-------------------------+-------------------------+--------+--------+