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• Using a :default for file names on include templates in SMARTY 3 [closed]

  - by Yohan Leafheart

  Hello everyone, Although I don't think the question was as good as it could be, let me try to explain better here. I have a site using SMARTY 3 as the template system. I have a template structure similar to the below one: /templates/place1/inner_a.tpl /templates/place1/inner_b.tpl /templates/place2/inner_b.tpl /templates/place2/inner_c.tpl /templates/default/inner_a.tpl /templates/default/inner_b.tpl /templates/default/inner_c.tpl These are getting included on the parent template using {include file="{$temp_folder}/{$inner_template}"} So far great. What I wanted to do is having a default for, in the case that the file "{$temp_folder}/{$inner_template}" does not exists, it uses the equivalent file at "default/{$inner_template}". i.e. If I do {include file="place1/inner_c.tpl"}, since that file does not exists it in fact includes "default/inner_c.tpl" Is it possible?

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• How to attach WAR file in email from jenkins

  - by birdy

  We have a case where a developer needs to access the last successfully built WAR file from jenkins. However, they can't access the jenkins server. I'd like to configure jenkins such that on every successful build, jenkins sends the WAR file to this user. I've installed the ext-email plugin and it seems to be working fine. Emails are being received along with the build.log. However, the WAR file isn't being received. The WAR file lives on this path in the server: /var/lib/jenkins/workspace/Ourproject/dist/our.war So I configured it under Post build actions like this: The problem is that emails are sent but the WAR file isn't being attached. Do I need to do something else?

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• Removal of libsound2 file causes graphics loss

  - by Sajid Ahmad

  I was trying to install skype on ubuntu 12.10 desktop. but it was giving some error related to libsound2:i386 file. to overcome this problem i removed file libsound2 thinking that will install it later. but it removes all the graphics from my system. after removal of the file system started to give error that system is running in low graphics mode. I tried to install libsound2 file again but couldn't. After it i have upgraded the release of my ubuntu version using command do-release-upgrade think that it will install the missing file. But still there are no graphics on the system. I am using Dell Inspiron 15 . Please help me to tell that how can i get the graphics of system back.

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• How to Search File Contents in Windows Server 2008 R2

  - by ybbest

  By default, windows search only search by File name. To configure windows search to search by contents you need configure the following: You need to make sure Windows Search Services feature is activated.(Check this article for details) Then, configure Windows Search by Open file explorer: Press Alt button –> go to tools –> Folder options –> search tab –> Here select, “Always search file names and content(this might take several minutes)” Press okay. Now your searches will work for file content like the good old days of XP. Another way to search the contents in file without Search configuration is to Type “contents:” in the Windows Explorer search box followed by the word, searches text files. This is a search filter which seems to be undocumented?

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• Default file permissions for php user www-data

  - by John Isaacks

  I have a php installed on my ubuntu machine. The web root is /var/www I set the permissions for this folder like so: sudo chown -R ftpuser:www-data /var/www ftpuser is the user I set up so I can ftp to /var/www from another machine on the network. www-data is the user php uses. I double checked using whoami from php. Whenever I ftp upload a new file to the machine the group has no permissions to the file. So when I try to access it in my browser via machine-name/new-file.php I am told permission denied and I have to go and chmod the new file. I am wondering if there is a way I can default the www-data user/group to have access permissions to new files so I don't have to keep chmod every new file?

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• Increase the size of a memory mapped file

  - by sandun dhammika

  I am maintaning a memory mapped file to store my tree like datastructure. When I'm updating the datastructure ,I got this problem. The file is limited on it's size and can't be too long or too small. I have a methods like void mapfile_insert_record(RECORD* /* record*/); void mapfile_modify_record(RECORD* /* record*/); Both operations could lead to exceed the space which is free on memory file. How do I overcome this? What strategy I should use. calculate whether it requires to exceed the file as a pre-condition on both methods. Dynamically exceed it , for a example manage a timer and constantly polling file for it's free avaliable size and then automatically extend it. Any ideas or patterns to overcome this problem?

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• How can I add the version of a file to the file name with Tortoise-SVN?

  - by Eric Belair

  I would like to start giving unique names to "cache-able" files - i.e. *.css and *.js - in order to prevent caching, without requiring changes to the web-server settings (as is currently done in IIS). For instance, let's I have a JavaScript file called global.js. Going forward I would like it to have the name global.123.js when revision 123 is checked in. This would also require the following: The previous version of the file - perhaps it was global.115.js - is removed when the file is deployed. All references to the file are updated with the new file name How do I go about doing this? What concerns do I need to consider?

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• Replacing LF, NEL line endings in text file with CR+LF

  - by Tomas Lycken

  I have a text file with a strange character encoding that I'd like to convert to standard UTF-8. I have managed to get part of the way: $ file myfile.txt myfile.txt: Non-ISO extended-ASCII text, with LF, NEL line endings $ iconv -f ascii -t utf-8 myfile.txt > myfile.txt.utf8 $ file myfile.txt.utf8 myfile.txt.utf8: UTF-8 Unicode text, with LF, NEL line endings ## edit myfile.txt.utf8 using nano, to fix failed character conversions (mostly åäö) $ file myfile.txt.utf8 myfile.txt.utf8: UTF-8 Unicode text, with LF, NEL line endings However, I can't figure out how to convert the line endings. How do I do to replace LF+NEL with CR+LF (or whatever is the standard)? When I'm done, I'd like to see the following: $ file myfile.txt myfile.txt: UTF-8 Unicode text

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• Framework Folders and Duplicate File Names

  - by Kevin Smith

  I have been working with Framework folders a little bit in the past few days and found one unexpected behavior that is different from Contribution Folders (Folders_g). If you try and check a file into a Framework Folder that already exists in the folder it will allow it and rename the file for you. In Folders_g this would have generated an error and prevented you from checking in the file. A quick check of the Framework Folder configuration settings in the Application Administrator’s Guide for Content Server does not show a configuration parameter to control this. I'm still thinking about this and not sure if I like this new behavior or not. I guess from a user perspective this more closely aligns Framework Folders to how Windows handle duplicate file names, but if you are migrating from Folders_g and expect a duplicate file name to be rejected, this might cause you some problems.

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• Having trouble's understanding NIF model file format?

  - by NoobScratcher

  I'm attempting too develop a 3rd party application to make it easy to import 3d model part's into my mod for skyrim the plan was to have a fileviewer and preview window of the nif model but since , I don't know what the NIF file format actually is or where to get the vertex data from it or the hole nine yards of parsing a text file in detail I'm at a lost what to do. I'm very good at C++ but not at this super over complicated file formats , id much prefer .obj over the nif file format specification here -- http://niftools.sourceforge.net/doc/nif/index.html If someone could help me in understanding the file format in a natural and simple way and the exact parsing needed to create the 3D Model in the frustum and a explanation on how you figured that out would be happy to know. I use cygwin , notepad++ , win32 7

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• WinRAR extracting file before checking password? [closed]

  - by opatachibueze

  I tried extracting an encrypted rar file today, and I discovered that I had to wait the same amount of time I'll wait before a file is extracted (extraction reaches 99% completion) for WinRAR to conclude it's the wrong password (winrar message: "CRC failed wrong password or corrupt file?") . My guess is that this file is somewhere on the Computer just before the detection, - it has to be and then gets deleted after it's verified that the password is not the same? Is there anyway I can forcefully get this file from the PC? Thanks.

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• File exists but is unreadable by PHP

  - by Aron

  More than once I have ran into this issue: I have a cache file that is automatically generated by PHP. It contains some generated PHP code. However for some reason the file cannot be read and parsed by PHP. These are the symptoms: File actually exists on file system. Using Terminal you can navigate to the file, view its contents (which are fully intact), etcetc. PHP file_exists() will report that the file exists...which is correct since it does :) Then I include() the file. But when actually parsing the file, PHP will just consider it an empty file. No fatal error, just no PHP code actually executed. Again, its as if the file was completely empty (which I assure you, it is not)... It is not a permissions issue. Permissions are set as needed. Workaround: open the file in Terminal via 'nano' or some other text editor and just save it to the disk again. After that (despite no changes to the content) PHP will run it just fine... As a clarification, I'd like to add that this happens rarely, but frequently enough to be a problem. And even when it does, there are hundreds of other similar files on the same system that work without a problem... If this were an issue affecting only my own scripts, I would consider that there must be a bug in the way I generate the PHP code. But no, the issue has occurred more than once when deploying to a server (usually from Beanstalk repository via FTP). The issue has been present on various servers, Debian and Ubuntu running Zend Community Server. Any ideas? One that crossed my mind was opcode cache-ing (part of Zend Server CE)...could it be that an empty version of the file is cached if it is requested while the write operation is still in progress?

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• Making a sldprt to PDB file converter?

  - by user122083

  I wanted to create a parser that can read a solidworks file and turn it into a protein data bank file. This has already been done in a program called DiamondCAD. http://www.zyvex.com/Research/DiamondCAD.html I waant to make a parser that can parse the data and then visualize it the same way as DiamondCAD. I have downloaded and opened solidworks files before and they make no sense to me with never before seen symbols and looks like ancient writing. Does anyone know how a sldprt. file is structured and how it can be parsed into a PDB file? (A software called VMD converts a PDB to Obj. file so it is proof of concept)

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• Run two shell file with thread

  - by user1149157

  How i can run two file shell in parallel and do not shared the same jvm. may be i use thread but how i run two file shell bu two thread ? File 1: #!/bin/bash # # Script for running several experimentations one the same JVM # Usage : TRACE_DIR NB_EXPE Factories... # param="parameter1" another="parameter2" for ((i = 10; i >= 0; i -= 1)) do echo "run my file with param another " done File 2 : #!/bin/bash # # Script for running several experimentations one the same JVM # Usage : TRACE_DIR NB_EXPE Factories... # a="101" b="400" c="500" echo "run my programme with a b c "

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• Read from file hexadecimal number and change their representation style

  - by user576844

  I want to write a program changing the notation of all hexadecimal numbers found in an assembly source file from traditional (h) to C-style (0x). I have started the coding part but am not sure how can I detect the hexadecimal numbers and eventually change the style and save it back in the file... I have started writing the program.. ## Mips program - .data fin: .ascii "" # filename for input msg0: .asciiz "aaaa" msg1: .asciiz "Please enter the input file name:" buffer: .asciiz "" .text #----------------------- li $v0, 4 la $a0, msg1 syscall li $v0, 8 la $a0, fin li $a1, 21 syscall jal fileRead #read from file move $s1, $v0 #$t0 = total number of bytes li $t0, 0 # Loop counter loop: bge $t0, $s1, end #if end of file reached OR if there is an error in the file lb $t5, buffer($t0) #load next byte from file jal checkhexa #check for hexadecimal numbers addi $t0, $t0, 1 #increment loop counter j loop end: jal output jal fileClose li $v0, 10 syscall fileRead: # Open file for reading li $v0, 13 # system call for open file la $a0, fin # input file name li $a1, 0 # flag for reading li $a2, 0 # mode is ignored syscall # open a file move $s0, $v0 # save the file descriptor # reading from file just opened li $v0, 14 # system call for reading from file move $a0, $s0 # file descriptor la $a1, buffer # address of buffer from which to read li $a2, 100000 # hardcoded buffer length syscall # read from file jr $ra Any help would be appreciated.

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• I am not able to delete a corrupt NTFS partition on my pen drive. How can I force its deletion?

  - by yesuraj

  I formatted my 16GB pen drive with the NTFS file system in windows vista. After that I started copying some files. However, only a few files were copied to the pen drive before the copy operation hung. So I cancelled the copy operation. Now I am unable to use the pen drive. I DON'T REALLY NEED ANY FILES THAT I COPIED TO THE PENDRIVE. I JUST WANT TO USE THE PENDRIVE AGAIN. I have tried using Ubuntu to format the pen drive. But when i use fdisk to delete the partition, it looks like it is working fine but in fact it does not delete the partition. Also I am unable to format it with any other file system. When I tried to use gparted, it throws the following error: Error mounting: mount exited with exit code 14: The disk contains an unclean file system(0,0). The file system wasn't safely closed on window. Fixing ntfs_attr_pread_i:ntfs_pread failed: Input/output error Failed to read NTFS$Bitmap:Input/output error NTFS is either inconsistent, or there is a hardware fault, or it's a softRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows then reboot into windows twice. The usage of the /f parameter is very important!. If the device is a SoftRAID/FakeRAID then first activate it and mount a different device under the /dev/mapper directory, (e.g. /dev/mapper/nvidia_eahaabcc1). Please see the dmraid documentation for more details When I searched the Internet I found help on how to recover. But I don’t want to recover, I want to format it again. When I pressed w after deleting the partition, it took more time than previously. After that i removed the pen drive and re-inserted, but the partition I had deleted was still present. If I simply type the command fdisk /dev/sdb without removing the pen drive after the partition is deleted, then it returns the error message Unable to open /dev/sdb. Here are the steps that I followed: root@yesuraj-ubuntu:~# fdisk /dev/sdb Command (m for help): d Selected partition 1 Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks THE DEMESG PRINTS ARE AS FOLLOWS, [ 6139.774753] usb 2-1.3: reset high speed USB device number 4 using ehci_hcd [ 6154.816941] usb 2-1.3: device descriptor read/64, error -110 [ 6169.968908] usb 2-1.3: device descriptor read/64, error -110 [ 6170.158427] usb 2-1.3: reset high speed USB device number 4 using ehci_hcd [ 6185.200638] usb 2-1.3: device descriptor read/64, error -110 [ 6200.352572] usb 2-1.3: device descriptor read/64, error -110 [ 6200.542093] usb 2-1.3: reset high speed USB device number 4 using ehci_hcd [ 6205.559460] usb 2-1.3: device descriptor read/8, error -110 I used the dd command and it erased the partition table. But now when I connect the pen drive, dmesg contains this error message: [88143.437001] sdb: unknown partition table. I am not able to create a partion using fdisk /dev/sdb. The error message says that it is unable to find the node. Other messages from dmesg follow below. [87100.531596] usb 2-1.3: new high speed USB device number 39 using ehci_hcd [87130.915257] usb 2-1.3: new high speed USB device number 40 using ehci_hcd [87135.932647] usb 2-1.3: device descriptor read/8, error -110

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• Weird call stack when application has frozen

  - by Harriv

  I apparently have an dead lock problem in one of my applications and started investigating EurekaLog stack traces. Here's one recent: Call Stack Information: -------------------------------------------------------------------------------------------------------------------------------------- |Address |Module |Unit |Class |Procedure/Method |Line | -------------------------------------------------------------------------------------------------------------------------------------- |*Exception Thread: ID=14208; Priority=0; Class=; [Main] | |------------------------------------------------------------------------------------------------------------------------------------| |7C82860C|ntdll.dll | | |KiFastSystemCall | | |7C827D27|ntdll.dll | | |ZwWaitForSingleObject | | |77E61C96|kernel32.dll | | |WaitForSingleObjectEx | | |77E61C88|kernel32.dll | | |WaitForSingleObject | | |77E61C7B|kernel32.dll | | |WaitForSingleObject | | |004151C4|MyApp.exe |sysutils.pas |TMultiReadExclusiveWriteSynchronizer|WaitForWriteSignal |16740[1] | |004151BC|MyApp.exe |sysutils.pas |TMultiReadExclusiveWriteSynchronizer|WaitForWriteSignal |16740[1] | |0041522C|MyApp.exe |sysutils.pas |TMultiReadExclusiveWriteSynchronizer|BeginWrite |16818[57] | |004323FB|MyApp.exe |Classes.pas |TDataModule |Create |11357[1] | |004323C0|MyApp.exe |Classes.pas |TDataModule |Create |11356[0] | |007D744D|MyApp.exe |uRORemoteDataModule.pas |TRORemoteDataModule |Create |163[1] | |007D7434|MyApp.exe |uRORemoteDataModule.pas |TRORemoteDataModule |Create |162[0] | |007DBFAB|MyApp.exe |Sentrol_Impl.pas | |Create_Sentrol |85[1] | |00646952|MyApp.exe |uROServer.pas |TROInvoker |CustomHandleMessage |726[11] | |00407BFA|MyApp.exe |system.pas |TInterfacedObject |_AddRef |17972[1] | |00404934|MyApp.exe |system.pas |TObject |GetInterface |9003[8] | |00407B1C|MyApp.exe |system.pas | |_IntfClear |17817[1] | |00404966|MyApp.exe |system.pas |TObject |GetInterface |9009[14] | |004048E8|MyApp.exe |system.pas |TObject |GetInterface |8995[0] | |00407BD7|MyApp.exe |system.pas |TInterfacedObject |QueryInterface |17964[1] | |77E61680|kernel32.dll | | |InterlockedDecrement | | |00407C10|MyApp.exe |system.pas |TInterfacedObject |_Release |17977[1] | |00407B2C|MyApp.exe |system.pas | |_IntfClear |17824[8] | |004067DF|MyApp.exe |system.pas | |_FinalizeArray |15233[100]| |00407B1C|MyApp.exe |system.pas | |_IntfClear |17817[1] | |00646577|MyApp.exe |uROServer.pas |TROClassFactoryList |FindClassFactoryByInterfaceName|619[17] | |77E6166C|kernel32.dll | | |InterlockedIncrement | | |00407BFA|MyApp.exe |system.pas |TInterfacedObject |_AddRef |17972[1] | |00646B72|MyApp.exe |uROServer.pas |TROInvoker |HandleMessage |758[1] | |006460C5|MyApp.exe |uROServer.pas | |MainProcessMessage |512[98] | |00645BAC|MyApp.exe |uROServer.pas | |MainProcessMessage |414[0] | |00647184|MyApp.exe |uROServer.pas |TROMessageDispatcher |ProcessMessage |929[2] | |00647130|MyApp.exe |uROServer.pas |TROMessageDispatcher |ProcessMessage |927[0] | |00647BCF|MyApp.exe |uROServer.pas |TROServer |IntDispatchMessage |1328[27] | |00647ABC|MyApp.exe |uROServer.pas |TROServer |IntDispatchMessage |1301[0] | |0064782F|MyApp.exe |uROServer.pas |TROServer |DispatchMessage |1170[11] | |006477B4|MyApp.exe |uROServer.pas |TROServer |DispatchMessage |1159[0] | |006477A9|MyApp.exe |uROServer.pas |TROServer |DispatchMessage |1152[1] | |0064779C|MyApp.exe |uROServer.pas |TROServer |DispatchMessage |1151[0] | |00659CB6|MyApp.exe |uROLocalServer.pas |TROLocalServer |SendRequest |57[1] | |00659CA4|MyApp.exe |uROLocalServer.pas |TROLocalServer |SendRequest |56[0] | |0065A009|MyApp.exe |uROLocalChannel.pas |TROLocalChannel |IntDispatch |99[10] | |005EE540|MyApp.exe |uROClient.pas |TROTransportChannel |Dispatch |1884[36] | |005EE3FC|MyApp.exe |uROClient.pas |TROTransportChannel |Dispatch |1848[0] | |005EEC8F|MyApp.exe |uROClient.pas |TROTransportChannel |Dispatch |2134[27] | |00616EC8|MyApp.exe |PCCS_Intf.pas |TSentrol_Proxy |GetNewValues |6585[7] | |007CBDB9|MyApp.exe |ETAROConnectionForm.pas |TROConnectionForm |SyncSentrolUpdateTimerTimer |855[16] | |7C82ABE5|ntdll.dll | | |RtlTimeToTimeFields | | |004D5D9C|MyApp.exe |Controls.pas |TControl |WndProc |5063[0] | |004DA05B|MyApp.exe |Controls.pas |TWinControl |WndProc |7304[111] | |7C81A3AB|ntdll.dll | | |RtlLeaveCriticalSection | | |0042659C|MyApp.exe |Classes.pas |TThreadList |UnlockList |3359[1] | |00426598|MyApp.exe |Classes.pas |TThreadList |UnlockList |3359[1] | |004935BC|MyApp.exe |Graphics.pas | |FreeMemoryContexts |5060[12] | |00493524|MyApp.exe |Graphics.pas | |FreeMemoryContexts |5048[0] | |004D9799|MyApp.exe |Controls.pas |TWinControl |MainWndProc |7076[6] | |004329F4|MyApp.exe |Classes.pas | |StdWndProc |11583[8] | |7739C09A|USER32.dll | | |CallNextHookEx | | |004B1343|MyApp.exe |ExtCtrls.pas |TTimer |Timer |2281[1] | |00404A30|MyApp.exe |system.pas | |_CallDynaInst |9159[1] | |004B1227|MyApp.exe |ExtCtrls.pas |TTimer |WndProc |2239[4] | |004329F4|MyApp.exe |Classes.pas | |StdWndProc |11583[8] | |7739C42C|USER32.dll | | |GetParent | | |7739C45C|USER32.dll | | |GetParent | | |773A16E0|USER32.dll | | |DispatchMessageA | | |773A16D6|USER32.dll | | |DispatchMessageA | | |004CC234|MyApp.exe |Forms.pas |TApplication |ProcessMessage |8105[23] | |004CC138|MyApp.exe |Forms.pas |TApplication |ProcessMessage |8082[0] | |004CC26E|MyApp.exe |Forms.pas |TApplication |HandleMessage |8124[1] | |004CC264|MyApp.exe |Forms.pas |TApplication |HandleMessage |8123[0] | |004CC563|MyApp.exe |Forms.pas |TApplication |Run |8223[20] | |004CC4B0|MyApp.exe |Forms.pas |TApplication |Run |8203[0] | |007F18B3|MyApp.exe |MyApp.dpr | | |215[65] | The stack trace seems to be ok until first TTimer call, after that it contains some garbage(?), however the end contains the the lock which seems be holding the main thread. Can I trust this stack trace? If not, what can cause this and how I can avoid it? Any ideas about the dead lock based on this stack trace? I don't quite understand how creating a datamodule can dead lock.. I'm using Delphi 2007.

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• All GIT Repos Corrupted on System Restore

  - by yar

  I restored my OSX today by copying the system over from a backup. Most things seem to be working, but every single GIT repo gives pretty much the same error fatal: object 03b45161eb27228914e690e032ca8009358e9588 is corrupted I have tried chowning, doing everything as sudo or root... I have no idea what to try next. This would be a normal git question except that it's on many repos. Ideas? Note: I'm using git 1.7.0.3 and I was probably using 1.7.0 before.

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• Malloc corrupting already malloc'd memory in C

  - by Kyte

  I'm currently helping a friend debug a program of his, which includes linked lists. His list structure is pretty simple: typedef struct nodo{ int cantUnos; char* numBin; struct nodo* sig; }Nodo; We've got the following code snippet: void insNodo(Nodo** lista, char* auxBin, int auxCantUnos){ printf("*******Insertando\n"); int i; if (*lista) printf("DecInt*%p->%p\n", *lista, (*lista)->sig); Nodo* insert = (Nodo*)malloc(sizeof(Nodo*)); if (*lista) printf("Malloc*%p->%p\n", *lista, (*lista)->sig); insert->cantUnos = auxCantUnos; insert->numBin = (char*)malloc(strlen(auxBin)*sizeof(char)); for(i=0 ; i<strlen(auxBin) ; i++) insert->numBin[i] = auxBin[i]; insert-numBin[i] = '\0'; insert-sig = NULL; Nodo* aux; [etc] (The lines with extra indentation were my addition for debug purposes) This yields me the following: *******Insertando DecInt*00341098->00000000 Malloc*00341098->2832B6EE (*lista)-sig is previously and deliberately set as NULL, which checks out until here, and fixed a potential buffer overflow (he'd forgotten to copy the NULL-terminator in insert-numBin). I can't think of a single reason why'd that happen, nor I've got any idea on what else should I provide as further info. (Compiling on latest stable MinGW under fully-patched Windows 7, friend's using MinGW under Windows XP. On my machine, at least, in only happens when GDB's not attached.) Any ideas? Suggestions? Possible exorcism techniques? (Current hack is copying the sig pointer to a temp variable and restore it after malloc. It breaks anyways. Turns out the 2nd malloc corrupts it too. Interestingly enough, it resets sig to the exact same value as the first one).

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• How do I corrupt a SQL CE Database?

  - by Peter Tate

  I want to be able to check for a corrupted database at startup, and then repair it programmatically. I can do that easily enough. My problem is that I want to test that things work the way I expect. Does anyone know of a way to purposefully corrupt a database so I can test my code?

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• glibc Heap Consistency Checking

  - by idimba

  According to posts from 2008 (I can't find it right now), glibc heap check doesn't work in multithreaded environment. Is it still situation now in 2010? Does heap check enabled by default? (gcc 4.1.2)? I don't set MALLOC_CHECK_, don't aware of calling mcheck(), but still sometimes receive double free glibc error with backtrace. Maybe it's enabled by some ccompilation flag?

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• Is there a way to log when a particular memory location gets written and by which function?

  - by rusbi

  I'm having a bug in my c++ program which happens very rarely but crashes my program. It's seems I have some buffer overflow problem or something similar. I find that these types of bug are most difficult to find. My program always crashes because of the same corrupted memory location. I'm wondering if there is some debugging tool which could detect when a particular memory location get written to and logs the function which does it. I'm using VLD (visual leak detector) for my memory leak hunting and it works great. It substitutes the original mallocs which its own and logs every allocation. I was wondering if there is something similar for memory? I know that something like that would cripple a program, but it could be really helpful.

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• Problem with averaging corrupted images to eliminate the noise in MATLAB

  - by Mertie Pertie

  I want to average some .jpg images which are corrupted by zero-mean Gaussian additive noise. After searching around, I figured out to add the image matrices and divide the sum by the number of matrices. However, the resultant image is totally black. Normally when the number of image increases then the resultant image gets better. But when I use more images it gets darker. I am using 800x600 black and white .jpg images. Here is the script I used: image1 = imread ('PIC1.jpg'); image2 = imread ('PIC2.jpg'); image3 = imread ('PIC3.jpg'); image4 = imread ('PIC4.jpg'); sum = image1 + image2 + image3 + image4; av = sum / 4; imshow(av);

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• Averaging corrupted images to eliminate the noise

  - by Mertie Pertie

  Hi all As you can get it from the title, I want to average some .jpg images which are corrupted by zero-mean Gaussian additive. After searching over internet, I figured out to add image matrices and divide the sum by the # of matrices. However the resultant image is totally black. Normally when the number of image increases then the resultant image gets better. But When I use more images it gets darker. I am using 800x600 black and white images with .jpg ext Here is the script I used; image1 = imread ('PIC1.jpg'); image2 = imread ('PIC2.jpg'); image3 = imread ('PIC3.jpg'); image4 = imread ('PIC4.jpg'); sum = image1 + image2 + image3 + image4; av = sum / 4; imshow(av); Thanks in advance

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• Averaging corrupted images to eliminate the noise in Matlab

  - by Mertie Pertie

  Hi all As you can get it from the title, I want to average some .jpg images which are corrupted by zero-mean Gaussian additive. After searching over internet, I figured out to add image matrices and divide the sum by the # of matrices. However the resultant image is totally black. Normally when the number of image increases then the resultant image gets better. But When I use more images it gets darker. I am using 800x600 black and white images with .jpg ext Here is the script I used; image1 = imread ('PIC1.jpg'); image2 = imread ('PIC2.jpg'); image3 = imread ('PIC3.jpg'); image4 = imread ('PIC4.jpg'); sum = image1 + image2 + image3 + image4; av = sum / 4; imshow(av); Thanks in advance

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