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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
| C++ source text
| default
| |
| 99%
| file
| C source text
| default
| |
| 98%
| file
| C source, 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 6c 61 6e 67 2e 63 2b | 2b 0a 50 61 74 68 3a 20 |.lang.c+|+.Path: |
|00000020| 6e 65 77 73 2e 6e 65 72 | 2e 62 62 6e 70 6c 61 6e |news.ner|.bbnplan|
|00000030| 65 74 2e 6e 65 74 21 61 | 72 63 6f 21 75 73 65 6e |et.net!a|rco!usen|
|00000040| 65 74 0a 46 72 6f 6d 3a | 20 42 72 69 61 6e 20 4c |et.From:| Brian L|
|00000050| 65 61 63 68 20 3c 6c 61 | 73 62 66 6c 3e 0a 53 75 |each <la|sbfl>.Su|
|00000060| 62 6a 65 63 74 3a 20 52 | 65 3a 20 51 75 65 73 74 |bject: R|e: Quest|
|00000070| 69 6f 6e 20 6f 6e 20 63 | 6f 6e 73 74 72 75 63 74 |ion on c|onstruct|
|00000080| 6f 72 73 0a 58 2d 4e 6e | 74 70 2d 50 6f 73 74 69 |ors.X-Nn|tp-Posti|
|00000090| 6e 67 2d 48 6f 73 74 3a | 20 31 33 36 2e 32 32 36 |ng-Host:| 136.226|
|000000a0| 2e 31 31 36 2e 31 0a 43 | 6f 6e 74 65 6e 74 2d 54 |.116.1.C|ontent-T|
|000000b0| 79 70 65 3a 20 74 65 78 | 74 2f 70 6c 61 69 6e 3b |ype: tex|t/plain;|
|000000c0| 20 63 68 61 72 73 65 74 | 3d 75 73 2d 61 73 63 69 | charset|=us-asci|
|000000d0| 69 0a 4d 65 73 73 61 67 | 65 2d 49 44 3a 20 3c 44 |i.Messag|e-ID: <D|
|000000e0| 4c 6e 77 38 43 2e 77 72 | 40 6e 65 77 73 2e 61 72 |Lnw8C.wr|@news.ar|
|000000f0| 63 6f 2e 63 6f 6d 3e 0a | 54 6f 3a 20 73 74 68 65 |co.com>.|To: sthe|
|00000100| 6f 74 6f 6b 40 62 6d 65 | 2e 6a 68 75 2e 65 64 75 |otok@bme|.jhu.edu|
|00000110| 0a 53 65 6e 64 65 72 3a | 20 75 73 65 6e 65 74 40 |.Sender:| usenet@|
|00000120| 6e 65 77 73 2e 61 72 63 | 6f 2e 63 6f 6d 0a 43 6f |news.arc|o.com.Co|
|00000130| 6e 74 65 6e 74 2d 54 72 | 61 6e 73 66 65 72 2d 45 |ntent-Tr|ansfer-E|
|00000140| 6e 63 6f 64 69 6e 67 3a | 20 37 62 69 74 0a 4f 72 |ncoding:| 7bit.Or|
|00000150| 67 61 6e 69 7a 61 74 69 | 6f 6e 3a 20 41 52 43 4f |ganizati|on: ARCO|
|00000160| 20 4f 69 6c 20 25 20 47 | 61 73 20 43 6f 6d 70 61 | Oil % G|as Compa|
|00000170| 6e 79 0a 52 65 66 65 72 | 65 6e 63 65 73 3a 20 3c |ny.Refer|ences: <|
|00000180| 33 31 30 33 45 36 34 32 | 2e 34 31 43 36 40 62 6d |3103E642|.41C6@bm|
|00000190| 65 2e 6a 68 75 2e 65 64 | 75 3e 0a 4d 69 6d 65 2d |e.jhu.ed|u>.Mime-|
|000001a0| 56 65 72 73 69 6f 6e 3a | 20 31 2e 30 0a 44 61 74 |Version:| 1.0.Dat|
|000001b0| 65 3a 20 57 65 64 2c 20 | 32 34 20 4a 61 6e 20 31 |e: Wed, |24 Jan 1|
|000001c0| 39 39 36 20 30 31 3a 33 | 31 3a 32 34 20 47 4d 54 |996 01:3|1:24 GMT|
|000001d0| 0a 58 2d 4d 61 69 6c 65 | 72 3a 20 4d 6f 7a 69 6c |.X-Maile|r: Mozil|
|000001e0| 6c 61 20 31 2e 31 4e 20 | 28 58 31 31 3b 20 49 3b |la 1.1N |(X11; I;|
|000001f0| 20 48 50 2d 55 58 20 41 | 2e 30 39 2e 30 35 20 39 | HP-UX A|.09.05 9|
|00000200| 30 30 30 2f 37 35 35 29 | 0a 58 2d 55 72 6c 3a 20 |000/755)|.X-Url: |
|00000210| 6e 65 77 73 3a 33 31 30 | 33 45 36 34 32 2e 34 31 |news:310|3E642.41|
|00000220| 43 36 40 62 6d 65 2e 6a | 68 75 2e 65 64 75 0a 0a |C6@bme.j|hu.edu..|
|00000230| 53 74 65 70 68 61 6e 6f | 73 20 41 6e 64 72 6f 75 |Stephano|s Androu|
|00000240| 74 73 65 6c 6c 69 73 2d | 54 68 65 6f 74 6f 6b 69 |tsellis-|Theotoki|
|00000250| 73 20 3c 73 74 68 65 6f | 74 6f 6b 40 62 6d 65 2e |s <stheo|tok@bme.|
|00000260| 6a 68 75 2e 65 64 75 3e | 20 77 72 6f 74 65 3a 0a |jhu.edu>| wrote:.|
|00000270| 3e 49 20 68 61 76 65 20 | 74 68 65 20 66 6f 6c 6c |>I have |the foll|
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|00000290| 6e 20 63 6f 6e 73 74 72 | 75 63 74 6f 72 73 3a 0a |n constr|uctors:.|
|000002a0| 3e 0a 3e 49 20 77 72 6f | 74 65 20 61 20 63 2b 2b |>.>I wro|te a c++|
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|00000310| 66 6f 72 63 65 20 6c 69 | 62 72 61 72 79 20 69 6e |force li|brary in|
|00000320| 69 74 69 61 6c 69 7a 61 | 74 69 6f 6e 2e 20 0a 3e |itializa|tion. .>|
|00000330| 49 20 74 68 6f 75 67 68 | 74 20 43 2b 2b 20 73 65 |I though|t C++ se|
|00000340| 6d 61 6e 74 69 63 73 20 | 67 75 61 72 61 6e 74 65 |mantics |guarante|
|00000350| 65 64 20 74 68 61 74 20 | 74 68 65 20 63 6f 6e 73 |ed that |the cons|
|00000360| 74 72 75 63 74 6f 72 20 | 66 6f 72 20 74 68 69 73 |tructor |for this|
|00000370| 20 64 75 6d 6d 79 0a 3e | 6f 62 6a 65 63 74 20 69 | dummy.>|object i|
|00000380| 73 20 63 61 6c 6c 65 64 | 20 62 65 66 6f 72 65 20 |s called| before |
|00000390| 61 6e 79 20 6f 74 68 65 | 72 20 66 75 6e 63 74 69 |any othe|r functi|
|000003a0| 6f 6e 73 20 69 6e 20 74 | 68 65 20 73 61 6d 65 20 |ons in t|he same |
|000003b0| 22 74 72 61 6e 73 6c 61 | 74 69 6f 6e 20 75 6e 69 |"transla|tion uni|
|000003c0| 74 22 2c 0a 3e 6f 72 2c | 20 61 74 20 74 68 65 20 |t",.>or,| at the |
|000003d0| 76 65 72 79 20 6c 65 61 | 73 74 2c 20 62 65 66 6f |very lea|st, befo|
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|00000400| 64 75 6d 6d 79 20 6f 62 | 6a 65 63 74 20 0a 3e 61 |dummy ob|ject .>a|
|00000410| 72 65 20 63 61 6c 6c 65 | 64 2e 0a 3e 49 73 20 74 |re calle|d..>Is t|
|00000420| 68 69 73 20 61 73 73 75 | 6d 70 74 69 6f 6e 20 77 |his assu|mption w|
|00000430| 72 6f 6e 67 3f 0a 0a 0a | 49 20 72 61 6e 20 69 6e |rong?...|I ran in|
|00000440| 74 6f 20 74 68 69 73 20 | 76 65 72 79 20 73 61 6d |to this |very sam|
|00000450| 65 20 70 72 6f 62 6c 65 | 6d 2c 20 61 6e 64 20 79 |e proble|m, and y|
|00000460| 65 73 2c 20 74 68 65 20 | 61 73 73 75 6d 70 74 69 |es, the |assumpti|
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|000004a0| 61 72 61 6e 74 65 65 64 | 20 62 65 74 77 65 65 6e |aranteed| between|
|000004b0| 20 70 72 6f 67 72 61 6d | 20 75 6e 69 74 73 2c 20 | program| units, |
|000004c0| 65 76 65 6e 20 77 68 65 | 6e 20 74 68 65 20 6f 62 |even whe|n the ob|
|000004d0| 6a 65 63 74 0a 69 73 20 | 67 6c 6f 62 61 6c 6c 79 |ject.is |globally|
|000004e0| 20 73 74 61 74 69 63 2e | 20 59 6f 75 20 63 61 6e | static.| You can|
|000004f0| 20 67 65 74 20 61 72 6f | 75 6e 64 20 74 68 69 73 | get aro|und this|
|00000500| 20 70 72 6f 62 6c 65 6d | 20 62 79 20 70 6c 61 63 | problem| by plac|
|00000510| 69 6e 67 20 61 20 72 65 | 66 65 72 65 6e 63 65 0a |ing a re|ference.|
|00000520| 63 6f 75 6e 74 65 64 20 | 73 74 61 74 69 63 20 6f |counted |static o|
|00000530| 62 6a 65 63 74 20 69 6e | 20 79 6f 75 72 20 2e 68 |bject in| your .h|
|00000540| 20 66 69 6c 65 3a 0a 0a | 3d 3d 3d 3d 3d 3d 3d 3d | file:..|========|
|00000550| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00000560| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00000570| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00000580| 3d 3d 3d 3d 3d 3d 3d 0a | 23 69 66 6e 64 65 66 20 |=======.|#ifndef |
|00000590| 4d 59 5f 48 5f 0a 23 64 | 65 66 69 6e 65 20 4d 59 |MY_H_.#d|efine MY|
|000005a0| 5f 48 5f 0a 76 6f 69 64 | 20 70 65 72 66 6f 72 6d |_H_.void| perform|
|000005b0| 49 6e 69 74 69 61 6c 69 | 7a 61 74 69 6f 6e 73 28 |Initiali|zations(|
|000005c0| 29 3b 0a 76 6f 69 64 20 | 70 65 72 66 6f 72 6d 43 |);.void |performC|
|000005d0| 6c 65 61 6e 75 70 73 28 | 29 3b 0a 0a 63 6c 61 73 |leanups(|);..clas|
|000005e0| 73 20 41 20 7b 0a 20 20 | 73 74 61 74 69 63 20 69 |s A {. |static i|
|000005f0| 6e 74 20 72 65 66 63 6f | 75 6e 74 5f 3b 0a 70 75 |nt refco|unt_;.pu|
|00000600| 62 6c 69 63 3a 0a 20 20 | 20 41 28 29 20 7b 20 69 |blic:. | A() { i|
|00000610| 66 20 28 20 72 65 66 63 | 6f 75 6e 74 5f 2b 2b 20 |f ( refc|ount_++ |
|00000620| 3d 3d 20 30 20 29 20 7b | 20 70 65 72 66 6f 72 6d |== 0 ) {| perform|
|00000630| 49 6e 69 74 69 61 6c 69 | 7a 61 74 69 6f 6e 73 28 |Initiali|zations(|
|00000640| 29 3b 20 7d 0a 20 20 7e | 41 28 29 20 7b 20 69 66 |); }. ~|A() { if|
|00000650| 20 28 20 2d 2d 72 65 66 | 63 6f 75 6e 74 5f 20 3d | ( --ref|count_ =|
|00000660| 3d 20 30 20 29 20 7b 20 | 70 65 72 66 6f 72 6d 43 |= 0 ) { |performC|
|00000670| 6c 65 61 6e 75 70 73 28 | 29 3b 20 7d 0a 7d 3b 0a |leanups(|); }.};.|
|00000680| 0a 73 74 61 74 69 63 20 | 42 4f 47 55 53 5f 41 20 |.static |BOGUS_A |
|00000690| 41 3b 0a 0a 23 65 6e 64 | 69 66 0a 3d 3d 3d 3d 3d |A;..#end|if.=====|
|000006a0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000006b0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000006c0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|000006d0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 0a 0a 4f |========|=====..O|
|000006e0| 66 20 63 6f 75 72 73 65 | 2c 20 73 6f 6d 65 77 68 |f course|, somewh|
|000006f0| 65 72 65 20 65 6c 73 65 | 20 69 6e 20 61 20 2e 43 |ere else| in a .C|
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|00000710| 20 79 6f 75 20 77 69 6c | 6c 20 64 65 66 69 6e 65 | you wil|l define|
|00000720| 0a 69 6e 74 20 41 3a 3a | 72 65 66 63 6f 75 6e 74 |.int A::|refcount|
|00000730| 5f 3d 30 3b 0a 0a 54 68 | 69 73 20 73 65 71 75 65 |_=0;..Th|is seque|
|00000740| 6e 63 65 20 77 69 6c 6c | 20 63 61 75 73 65 20 63 |nce will| cause c|
|00000750| 6f 6e 73 74 72 75 63 74 | 6f 72 20 66 6f 72 20 41 |onstruct|or for A|
|00000760| 20 74 6f 20 62 65 20 63 | 61 6c 6c 65 64 20 77 69 | to be c|alled wi|
|00000770| 74 68 69 6e 20 61 6e 79 | 20 75 6e 69 74 20 74 68 |thin any| unit th|
|00000780| 61 74 0a 69 6e 63 6c 75 | 64 65 73 20 74 68 65 20 |at.inclu|des the |
|00000790| 2e 68 20 66 69 6c 65 2c | 20 62 65 66 6f 72 65 20 |.h file,| before |
|000007a0| 79 6f 75 72 20 70 72 6f | 67 72 61 6d 20 69 73 20 |your pro|gram is |
|000007b0| 61 62 6c 65 20 74 6f 20 | 69 6e 73 74 61 6e 63 65 |able to |instance|
|000007c0| 20 61 6e 79 20 41 2e 20 | 54 68 65 0a 72 65 66 63 | any A. |The.refc|
|000007d0| 6f 75 6e 74 5f 20 76 61 | 72 69 61 62 6c 65 20 6f |ount_ va|riable o|
|000007e0| 6e 6c 79 20 61 6c 6c 6f | 77 73 20 74 68 65 20 69 |nly allo|ws the i|
|000007f0| 6e 69 74 69 61 6c 69 7a | 61 74 69 6f 6e 20 72 6f |nitializ|ation ro|
|00000800| 75 74 69 6e 65 73 20 74 | 6f 20 62 65 20 63 61 6c |utines t|o be cal|
|00000810| 6c 65 64 20 6f 6e 63 65 | 0a 28 74 68 65 79 20 63 |led once|.(they c|
|00000820| 61 6e 20 62 65 20 6d 65 | 6d 62 65 72 20 66 75 6e |an be me|mber fun|
|00000830| 63 74 69 6f 6e 73 20 69 | 66 20 79 6f 75 20 73 6f |ctions i|f you so|
|00000840| 20 64 65 73 69 72 65 2e | 29 20 41 6e 64 20 74 68 | desire.|) And th|
|00000850| 65 20 63 6c 65 61 6e 75 | 70 20 77 69 6c 6c 20 62 |e cleanu|p will b|
|00000860| 65 20 63 61 6c 6c 65 64 | 0a 6f 6e 6c 79 20 61 74 |e called|.only at|
|00000870| 20 74 68 65 20 69 6e 73 | 74 61 6e 63 65 20 6f 66 | the ins|tance of|
|00000880| 20 74 68 65 20 64 65 73 | 74 72 75 63 74 69 6f 6e | the des|truction|
|00000890| 20 6f 66 20 74 68 65 20 | 6c 61 73 74 20 41 20 69 | of the |last A i|
|000008a0| 6e 73 74 61 6e 63 65 20 | 77 69 74 68 69 6e 20 74 |nstance |within t|
|000008b0| 68 65 0a 70 72 6f 67 72 | 61 6d 2c 20 69 65 3a 20 |he.progr|am, ie: |
|000008c0| 70 72 6f 67 72 61 6d 20 | 74 65 72 6d 69 6e 61 74 |program |terminat|
|000008d0| 69 6f 6e 2e 0a 0a 2d 42 | 72 69 61 6e 20 3a 2d 29 |ion...-B|rian :-)|
|000008e0| 0a 0a | |.. | |
+--------+-------------------------+-------------------------+--------+--------+
