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  • Listing defined functions in bash

    - by Charles Duffy
    I'm trying to write some code in bash which uses introspection to select the appropriate function to call. Determining the candidates requires knowing which functions are defined. It's easy to list defined variables in bash using only parameter expansion: $ prefix_foo="one" $ prefix_bar="two" $ echo "${!prefix_*}" prefix_bar prefix_foo However, doing this for functions appears to require filtering the output of set -- a much more haphazard approach. Is there a Right Way?

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  • Cocoa giving error: <Error>: doClip: empty path.

    - by outtru.mp
    Coco gives error: Thu Jun 10 19:13:56 myComputer.local myApp[####] <Error>: doClip: empty path. But I don't have this function anywhere in my code (can't find by searching in frameworks / project)... Seems a lot of people complain about this because it goes into the console logs, but couldn't find any reason given as to what causes it on a progmatic level. Any thoughts as to what the problem is?

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  • How to develop asp.net web service to create the web method which can take the parameter of type win

    - by Shailesh Jaiswal
    I am developing asp.net web service. I am developing this web service so that OPC ( OLE for process control) client application can use it. In this web service I am using the built-in functions provided by the namespaces using OPC, using OPCDA, using OPCDA.NET. I have also added the namespace using System.Windows.Forms in this web service so that I can use the windows form control. In that we service I have created on web method which takes the parameter of type windows form control as given below. public void getOPCServerItems(TreeView tvServerItems, ListView lvBranchItems) { ArrayList ArrlstObj = new ArrayList(); ItemShowTreeList = OpcSrv.ShowBrowseTreeList(tvServerItems, lvBranchItems); ItemShowTreeList.BrowseModeOneLevel = true; // browse hierachy levels when selected. (default) ItemShowTreeList.Show(OpcSrv.ServerName); } In the above web method I need to pass the values to the built-in function ShowBrowseTreeList() (found in OPC, OPCDA, OPCDA.NET namespaces). This function takes the two parameter of windows form control type. These parameters are Treeview & ListView control of the windows form. In the above web method ShowBrowseTreeList() method automatically create the treeview & listview structure of the available items. Now as I am consuming the web service so I need to pass the values to the webmethod getOPCServerItems(). But as I my consuming application is asp.net application there is no such windows form control. In asp.net application there are also & control. I want to display The data returned in these asp.net controls rather than windows form control. I am not getting the way what should I need to do or how should I pass the values form my client application to this web service ? In the above method getOPCServerItems() when I use the parameter of type treeview & listview it generate s error "Cannot serialize member System.ComponentModel.Component.Site of type System.ComponentModel.ISite because it is an interface.". Can you provide me the the way In which I can write the above web method & how should I pass parameter to the Treeview & Listview control (windows form control) from my asp.net application ? which controls I should use to pass parameters ? Is there any need to do any type of casting ? Can you provide me the the code for above web method so that I can resolve the above issue ?

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  • jQuery Adding DOM Elements

    - by Aren B
    This may be a simple answer, but I'm trying to add a dom-created element (i.e. document.createElement(...)) to a jQuery Selector. jQuery has a great assortment of functions for adding html .html(htmlString) .append(htmlString) .prepend(htmlString) But what i want to do is add a dom OBJECT var myFancyDiv = document.createElement("div"); myFancyDiv.setAttribute("id", "FancyDiv"); // This is the theoretical function im looking for. $("#SomeOtherDiv").htmlDom(myFancyDiv);

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  • What is NSString in struct?

    - by 4thSpace
    I've defined a struct and want to assign one of its values to a NSMutableDictionary. When I try, I get a EXC_BAD_ACCESS. Here is the code: //in .h file typedef struct { NSString *valueOne; NSString *valueTwo; } myStruct; myStruct aStruct; //in .m file - (void)viewDidLoad { [super viewDidLoad]; aStruct.valueOne = @"firstValue"; } //at some later time [myDictionary setValue:aStruct.valueOne forKey:@"key1"]; //dies here with EXC_BAD_ACCESS This is the output in debugger console: (gdb) p aStruct.valueOne $1 = (NSString *) 0xf41850 Is there a way to tell what the value of aStruct.valueOne is? Since it is an NSString, why does the dictionary have such a problem with it? ------------- EDIT ------------- This edit is based on some comments below. The problem appears to be in the struct memory allocation. I have no issues assigning the struct value to the dictionary in viewDidLoad, as mentioned in one of the comments. The problem is that later on, I run into an issue with the struct. Just before the error, I do: po aStruct.oneValue Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00000000 0x9895cedb in objc_msgSend () The program being debugged was signaled while in a function called from GDB. GDB has restored the context to what it was before the call. To change this behavior use "set unwindonsignal off" Evaluation of the expression containing the function (_NSPrintForDebugger) will be abandoned. This occurs just before the EXC_BAD_ACCESS: NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"MM-dd-yy_HH-mm-ss-A"]; NSString *date = [formatter stringFromDate:[NSDate date]]; [formatter release]; aStruct.valueOne = date; So the memory issue is most likely in my releasing of formatter. The date var has no retain. Should I instead be doing NSString *date = [[formatter stringFromDate:[NSDate date]] retain]; Which does work but then I'm left with a memory leak.

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  • error logging in zend

    - by pradeep
    i am using zend for 1st time..i am facing problems in finding errors. when a setter and getter function name mismatch i get a an error...but the error is show sometimes and not all the time...how do i log such errors.is there any separate log for this?

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  • Debugging site written mainly in JScript with AJAX code injection

    - by blumidoo
    Hello, I have a legacy code to maintain and while trying to understand the logic behind the code, I have run into lots of annoying issues. The application is written mainly in Java Script, with extensive usage of jQuery + different plugins, especially Accordion. It creates a wizard-like flow, where client code for the next step is downloaded in the background by injecting a result of a remote AJAX request. It also uses callbacks a lot and pretty complicated "by convention" programming style (lots of events handlers are created on the fly based on certain object names - e.g. current page name, current step name). Adding to that, the code is very messy and there is no obvious inner structure - the functions are scattered in the code, file names do not reflect the business role of the code, lots of functions and code snippets are most likely not used at all etc. PROBLEM: How to approach this code base, so that the inner flow of the code can be sort-of "reverse engineered" using a suite of smart debugging tools. Ideally, I would like to be able to attach to the running application and step through the code, breaking on each new function call. Also, it would be nice to be able to create a "diagram of calls" in the application (i.e. in order to run a particular page logic, this particular flow of function calls was executed in a particular order). Not to mention to be able to run a coverage analysis, identifying potentially orphaned code fragments. I would like to stress out once more, that it is impossible to understand the inner logic of the application just by looking at the code itself, unless you have LOTS of spare time and beer crates, which I unfortunately do not have :/ (shame...) An IDE of some sort that would aid in extending that code would be also great, but I am currently looking into possibility to use Visual Studio 2010 to do the job, as the site itself is a mix of Classic ASP and ASP.NET (I'd say - 70% Java Script with jQuery, 30% ASP). I have obviously tried FireBug, but I was unable to find a way to define a breakpoint or step into the code, which is "injected" into the client JS using AJAX calls (i.e. the application retrieves the code by invoking an URL and injects it to the client local code). Venkman debugger had similar issues. Any hints would be welcome. Feel free to ask additional questions.

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  • What to Return? Error String, Bool with Error String Out, or Void with Exception

    - by Ranger Pretzel
    I spend most of my time in C# and am trying to figure out which is the best practice for handling an exception and cleanly return an error message from a called method back to the calling method. For example, here is some ActiveDirectory authentication code. Please imagine this Method as part of a Class (and not just a standalone function.) bool IsUserAuthenticated(string domain, string user, string pass, out errStr) { bool authentic = false; try { // Instantiate Directory Entry object DirectoryEntry entry = new DirectoryEntry("LDAP://" + domain, user, pass); // Force connection over network to authenticate object nativeObject = entry.NativeObject; // No exception thrown? We must be good, then. authentic = true; } catch (Exception e) { errStr = e.Message().ToString(); } return authentic; } The advantages of doing it this way are a clear YES or NO that you can embed right in your If-Then-Else statement. The downside is that it also requires the person using the method to supply a string to get the Error back (if any.) I guess I could overload this method with the same parameters minus the "out errStr", but ignoring the error seems like a bad idea since there can be many reasons for such a failure... Alternatively, I could write a method that returns an Error String (instead of using "out errStr") in which a returned empty string means that the user authenticated fine. string AuthenticateUser(string domain, string user, string pass) { string errStr = ""; try { // Instantiate Directory Entry object DirectoryEntry entry = new DirectoryEntry("LDAP://" + domain, user, pass); // Force connection over network to authenticate object nativeObject = entry.NativeObject; } catch (Exception e) { errStr = e.Message().ToString(); } return errStr; } But this seems like a "weak" way of doing things. Or should I just make my method "void" and just not handle the exception so that it gets passed back to the calling function? void AuthenticateUser(string domain, string user, string pass) { // Instantiate Directory Entry object DirectoryEntry entry = new DirectoryEntry("LDAP://" + domain, user, pass); // Force connection over network to authenticate object nativeObject = entry.NativeObject; } This seems the most sane to me (for some reason). Yet at the same time, the only real advantage of wrapping those 2 lines over just typing those 2 lines everywhere I need to authenticate is that I don't need to include the "LDAP://" string. The downside with this way of doing it is that the user has to put this method in a try-catch block. Thoughts? Is there another way of doing this that I'm not thinking of?

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  • Create a user-defined aggregate without SQL CLR

    - by David Pfeffer
    I am planning on deploying a database to SQL Azure, so I cannot use the SQL CLR. However, I have a need to create an aggregate function -- in my case, I need to STUnion a bunch of Geography objects together. (Azure is expected to support Spatial by June.) Is there another way to accomplish this, without making use of the CLR, in a query? Or do I have to create a UDF that will take a table as a parameter and return the aggregate?

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  • Ignore SSL errors in Zend_Http_Client

    - by webdestroya
    In PHP curl there are two functions used to ignore all SSL errors (invalid cert, self signed, expired, so on): curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); I am switching over to use Zend_Http_Client, but I can't seem to find a way to force it to ignore errors. (I don't have a way to test it just yet, I wanted to see if anybody has done this before) So, does anybody know the equivalent function/functions to do this in Zend_Http_Client?

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  • Firebug is throwing a ' $( ' error?

    - by Kyle
    I am getting a strange error in Firebug, that I am not getting in Webkit. The error comes up as ' $( ' in firebug. Here's the code that is supposedly causing it to flip: $.getScript("http://kylehotchkiss.com/min/?g=packageHome", function() { $(".countdown").countdown({ until: new Date(2010, 6 - 1, 5), layout:'{dn} {dl}' }); }); The error isn't specific to the countdown script, it's just giving me an error trying to call any plugin I just loaded in firefox. Any ideas?

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  • IE Overwrite window.top

    - by Dave
    I'm trying to convince a page that it is the window.top even though it is in an iframe. In FF you can do window.defineGetter('top', function() { return window}); in Webkit (Safari/Chrome) you can simply do window.top = window but in IE none of those methods work. Anyone done this before?

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  • Can't compare the norm of a vector to 1 in matlab

    - by Ian
    I'm trying to find out wether a matrix is orthonormal. I begin by checking if the vectors are normal by doing for j=1:2; if norm(S:,j) ~= 1; return; % Not normal vector end end But when norm returns 1.0000 comparing that to 1 is true and the function returns, which is not what i want. Any ideas? Thx

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  • CSS placement of text

    - by Josh
    Anyone know how I can get "Posted by AUTHOR on April 3rd, 2010 | 0 Comments" underneath the headline of the news links WITHOUT it being apart of the A CLASS? I want it to look, read, and function like: [IMAGE] HEADLINE Posted by AUTHOR on April 3rd, 2010 | 0 Comments All of that in the initial looking field, then the user can click and it expands further. I can obviously get it to work if I put it in the A CLASS tag, but that's the problem. I can't have it there.

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  • Equivalent of CGPoint with integers?

    - by Ivan Vucica
    Cheers, I like strict typing in C. Therefore, I don't want to store a 2D vector of floats if I specifically need integers. Is there an Apple-provided equivalent of CGPoint which stores data as integers? I've implemented my type Vector2i and its companion function Vector2iMake() à la CGPoint, but something deep in me screams that Apple was there already.

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  • Equivalent of CGPoint with integers?

    - by Ivan Vucica
    Cheers, I like strict typing in C. Therefore, I don't want to store a 2D vector of floats if I specifically need integers. Is there an Apple-provided equivalent of CGPoint which stores data as integers? I've implemented my type Vector2i and its companion function Vector2iMake() à la CGPoint, but something deep in me screams that Apple was there already.

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  • strange xcode error Could not compile reconstructed dtrace script:

    - by Rahul Vyas
    Hello all , i am getting this error when i try to compile an iPhone app. error: Could not compile reconstructed dtrace script: provider CorePlot { probe layer_position_change(char *,int,int,int,int); }; #pragma D attributes PRIVATE/PRIVATE/UNKNOWN provider CorePlot provider #pragma D attributes PRIVATE/PRIVATE/UNKNOWN provider CorePlot module #pragma D attributes PRIVATE/PRIVATE/UNKNOWN provider CorePlot function #pragma D attributes PRIVATE/PRIVATE/UNKNOWN provider CorePlot name #pragma D attributes PRIVATE/PRIVATE/UNKNOWN provider CorePlot args ld: error creating dtrace DOF section collect2: ld returned 1 exit status

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  • Actionscript can't call javasript from locally-saved html

    - by Dmitry Sapelnikov
    I try to perform calling of a javascript function from actionscript 3.0 thru ExternalInterface.call(). I've seen a lot of online examples where the method works perfectly. But all downloaded copies of the examples don't work. Flash player can't call javasript due to the swf-html container security problems. I've already tried to set allowScriptAccess value from "sameDomain" to "always". It haven't solved the problem.

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  • Printf in assembler doesn't print

    - by Gaim
    Hi there, I have got a homework to hack program using buffer overflow ( with disassambling, program was written in C++, I haven't got the source code ). I have already managed it but I have a problem. I have to print some message on the screen, so I found out address of printf function, pushed address of "HACKED" and address of "%s" on the stack ( in this order ) and called that function. Called code passed well but nothing had been printed. I have tried to simulate the environment like in other place in the program but there has to be something wrong. Do you have any idea what I am doing wrong that I have no output, please? Thanks a lot EDIT: This program is running on Windows XP SP3 32b, written in C++, Intel asm there is the "hack" code CPU Disasm Address Hex dump Command Comments 0012F9A3 90 NOP ;hack begins 0012F9A4 90 NOP 0012F9A5 90 NOP 0012F9A6 89E5 MOV EBP,ESP 0012F9A8 83EC 7F SUB ESP,7F ;creating a place for working data 0012F9AB 83EC 7F SUB ESP,7F 0012F9AE 31C0 XOR EAX,EAX 0012F9B0 50 PUSH EAX 0012F9B1 50 PUSH EAX 0012F9B2 50 PUSH EAX 0012F9B3 89E8 MOV EAX,EBP 0012F9B5 83E8 09 SUB EAX,9 0012F9B8 BA 1406EDFF MOV EDX,FFED0614 ;address to jump, it is negative because there mustn't be 00 bytes 0012F9BD F7DA NOT EDX 0012F9BF FFE2 JMP EDX ;I have to jump because there are some values overwritten by the program 0012F9C1 90 NOP 0012F9C2 0090 00000000 ADD BYTE PTR DS:[EAX],DL 0012F9C8 90 NOP 0012F9C9 90 NOP 0012F9CA 90 NOP 0012F9CB 90 NOP 0012F9CC 6C INS BYTE PTR ES:[EDI],DX ; I/O command 0012F9CD 65:6E OUTS DX,BYTE PTR GS:[ESI] ; I/O command 0012F9CF 67:74 68 JE SHORT 0012FA3A ; Superfluous address size prefix 0012F9D2 2069 73 AND BYTE PTR DS:[ECX+73],CH 0012F9D5 203439 AND BYTE PTR DS:[EDI+ECX],DH 0012F9D8 34 2C XOR AL,2C 0012F9DA 2066 69 AND BYTE PTR DS:[ESI+69],AH 0012F9DD 72 73 JB SHORT 0012FA52 0012F9DF 74 20 JE SHORT 0012FA01 0012F9E1 3120 XOR DWORD PTR DS:[EAX],ESP 0012F9E3 6C INS BYTE PTR ES:[EDI],DX ; I/O command 0012F9E4 696E 65 7300909 IMUL EBP,DWORD PTR DS:[ESI+65],-6F6FFF8D 0012F9EB 90 NOP 0012F9EC 90 NOP 0012F9ED 90 NOP 0012F9EE 31DB XOR EBX,EBX ; hack continues 0012F9F0 8818 MOV BYTE PTR DS:[EAX],BL ; writing 00 behind word "HACKED" 0012F9F2 83E8 06 SUB EAX,6 0012F9F5 50 PUSH EAX ; address of "HACKED" 0012F9F6 B8 3B8CBEFF MOV EAX,FFBE8C3B 0012F9FB F7D0 NOT EAX 0012F9FD 50 PUSH EAX ; address of "%s" 0012F9FE B8 FFE4BFFF MOV EAX,FFBFE4FF 0012FA03 F7D0 NOT EAX 0012FA05 FFD0 CALL EAX ;address of printf This code is really ugly because I am new in assembler and there mustn't be null bytes because of buffer-overflow bug

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  • Does python import all the listed libraries? - Python

    - by RadiantHex
    Hi folks, I'm just wondering, I often have really long python files and imports tend to stack quite quickly. PEP8 says that the imports should always be written at the beginning of the file. Do all the imported libraries get imported when calling a function coded in the file? Or do only the necessary libraries get called? Does it make sense to worry about this? Is there no reason to import libraries within the functions or classes that need them?

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  • DownloadError: ApplicationError

    - by Joel
    I have a function called DownloadData() which uses url.fetch(). From time to time it throws DownloadError: ApplicationError: 2 timed out error. How can I catch this error? With "except DownloadError: ApplicationError: 2 timed " or only "DownloadError"? It is hard to reproduce this error so I can not know which except to use. Thanks, Joel

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