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  • Show Detailed Error in SQL Profiler

    - by AlwaysBeCoding
    Is there any way showing the detailed exception for String or binary data would be truncated. I use LINQ to SQL and i cant figure out which column is that!? Tried numerous things but i get the same meaningless error i got from within Visual Studio. Also I use .NET 3.5 SP1, but errors are still returned useless.

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  • Python : Convert from C-Char to Int

    - by cuband
    I have a string read in from a binary file that is unpacked using struct.unpack as a string of length n. Each byte in the string is a single integer (1-byte) representing 0-255. So for each character in the string I want to convert it to an integer. I can't figure out how to do this. Using ord doesn't seem to be on the right track...

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  • alternative ways to blockwrite ?

    - by radick
    hi all is there any alternate ways to blockwrite ? now in my app i am using it like this BlockWrite(file, buffer[1], Length(buffer)); i want to know alternate ways writing string to an exe file(binary ) just want to know different methods :) can any one help me thanks in advance

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  • Is there a sorted_vector class, which supports insert() etc.?

    - by Frank
    Often, it is more efficient to use a sorted std::vector instead of a std::set. Does anyone know a library class sorted_vector, which basically has a similar interface to std::set, but inserts elements into the sorted vector (so that there are no duplicates), uses binary search to find elements, etc.? I know it's not hard to write, but probably better not to waste time and use an existing implementation anyway.

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  • How can I find the boundaries of a subset of a sorted list?

    - by Alex
    I have the following dilemma: I have a list of strings, and I want to find the set of string which start with a certain prefix. The list is sorted, so the naive solution is this: Perform binary search on the prefixes of the set, and when you find an element that starts with the prefix, traverse up linearly until you hit the top of the subset. This runs in linear time, however, and I was wondering if anyone can suggest a more efficient way to do it.

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  • image processing problem

    - by riyana
    i'm working on detecting shape of any object.i've a binary image where background is white pixels and foreground/object is black pixel. now i need to detect the shape of the area where there are black pixels.how can i do it?the shape may be of a man/car/box etc. plz help

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  • Using rowDiffs() to calculate difference in values in matrix

    - by user1723765
    I'm using the rowDiffs() command to calculate the step by step difference in 116 rows in a matrix. I get the following error: Error in r[i1] - r[-length(r):-(length(r) - lag + 1L)] : non-numeric argument to binary operator I have no idea why this is happening. I could take the diff() separately for each row and it would work. Any ideas? Here's the data: https://dl.dropbox.com/u/22681355/data.csv Code: a=rowDiffs(data)

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  • loading an image through javascript

    - by scatman
    is there a way to load the full binary of an image in javascript? what i want to do is to allow the user to preview an image before uploading it. ie the user selects an image on his local drive (C:\image.jpg) , view it, and decides to upload or cancel. i tried to set the source to the image path, but it didn't work since it is outside the webapplication project folder. any help?

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  • g++ creates several symbols of a const ?

    - by nissen
    In one of my header (C++) files I changed #define TIMEOUT 10 to the more(?) C++ way: const int TIMEOUT = 10; It seems however, g++(v 4.4.3) now includes this symbol several times in the binary. $ nm -C build/ipd/ipd |head 08050420 T ToUnixTime 08050470 T ParseTime 080504c0 T ParseISOTime 080518e4 r TIMEOUT 080518ec r TIMEOUT 080518f4 r TIMEOUT 080518fc r TIMEOUT 080503e0 T HandleMessage How come ?

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  • Is there a static code analyzer [like Lint] for PHP files?

    - by eswald
    Is there a static code analyzer for PHP files? The binary itself can check for syntax errors, but I'm looking for something that does more, like unused variable assignments, arrays that are assigned into without being initialized first, and possibly code style warnings. Open-source programs would be preferred, but we might convince the company to pay for something if it's highly recommended.

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  • How to see if type is instance of a class in Haskell?

    - by Raekye
    I'm probably doing this completely wrong (the unhaskell way); I'm just learning so please let me know if there's a better way to approach this. Context: I'm writing a bunch of tree structures. I want to reuse my prettyprint function for binary trees. Not all trees can use the generic Node/Branch data type though; different trees need different extra data. So to reuse the prettyprint function I thought of creating a class different trees would be instances of: class GenericBinaryTree a where is_leaf :: a -> Bool left :: a -> a node :: a -> b right :: a -> a This way they only have to implement methods to retrieve the left, right, and current node value, and prettyprint doesn't need to know about the internal structure. Then I get down to here: prettyprint_helper :: GenericBinaryTree a => a -> [String] prettyprint_helper tree | is_leaf tree = [] | otherwise = ("{" ++ (show (node tree)) ++ "}") : (prettyprint_subtree (left tree) (right tree)) where prettyprint_subtree left right = ((pad "+- " "| ") (prettyprint_helper right)) ++ ((pad "`- " " ") (prettyprint_helper left)) pad first rest = zipWith (++) (first : repeat rest) And I get the Ambiguous type variable 'a0' in the constraint: (Show a0) arising from a use of 'show' error for (show (node tree)) Here's an example of the most basic tree data type and instance definition (my other trees have other fields but they're irrelevant to the generic prettyprint function) data Tree a = Branch (Tree a) a (Tree a) | Leaf instance GenericBinaryTree (Tree a) where is_leaf Leaf = True is_leaf _ = False left (Branch left node right) = left right (Branch left node right) = right node (Branch left node right) = node I could have defined node :: a -> [String] and deal with the stringification in each instance/type of tree, but this feels neater. In terms of prettyprint, I only need a string representation, but if I add other generic binary tree functions later I may want the actual values. So how can I write this to work whether the node value is an instance of Show or not? Or what other way should I be approaching this problem? In an object oriented language I could easily check whether a class implements something, or if an object has a method. I can't use something like prettyprint :: Show a => a -> String Because it's not the tree that needs to be showable, it's the value inside the tree (returned by function node) that needs to be showable. I also tried changing node to Show b => a -> b without luck (and a bunch of other type class/preconditions/whatever/I don't even know what I'm doing anymore).

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  • % operator for time calculation

    - by Chris
    I am trying to display minutes and seconds based on a number of seconds. I have: float seconds = 200; float mins = seconds / 60.0; float sec = mins % 60.0; [timeIndexLabel setText:[NSString stringWithFormat:@"%.2f , %.2f", mins,seconds]]; But I get an error: invalid operands of types 'float' and 'double' to binary 'operator%' And I don't understand why... Can someone throw me a bone!?

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  • Formatting a truecrypt volume on windows: Truecrypt failed to obtain administrator privileges

    - by daveh551
    Following shaneselman's advice (http://www.hanselman.com/blog/TheComputerBackupRuleOfThree.aspx), I'm setting up a 2TB external drive as a backup, and encrypting it using TrueCrypt. This is under Windows 7. (I've used TrueCrypt before, but not since XP days.) I installed TrueCrypt with default options. After taking 23 hours to format the 2TB container, it finishes with an error saying "TrueCrypt cannot obtain administrator privileges." When I click OK on that, it says it can't format the container as NTFS, do I want to format it as FAT, and I don't so I click No, and it exits with nothing to show for 23 hours of compute time. So I set the "Run as administrator flag" on the TrueCrypt shortcut, and try again. This time, when I go to format the contain (prepared to wait ANOTHER 23 hours), it pops up a dialog saying you're formatting this as administrator. "The volume may be created with permissions that will not allow you to write to the volume when it is mounted. If you want to avoid that, close this instance of Volume Creation Wizard and launch a new one without administrator privileges." Great - I can either run as non-administrator, and it will fail to create the volume at all, or I can run as administrator and create a volume I can't write to. I think I'm doing something wrong, but it's not clear to me what. Any help?

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  • Smart Array P400 - Accelerator Replacement Battery Failure

    - by inflammable
    TL;DR - Is the immediate failure of a replacement battery, for a failed battery, on a battery backed accelerator for a Smart Array P400 controller a common occurrence? Or are we likely to have an storage controller with an impending and critical fault? We have a slightly confusing situation with a Smart Array P400 storage controller with the 512mb battery backed accelerator addon on an HP DL380 server. The storage controller is (afaik) running the latest firmware and driver: Model: Smart Array P400 Controller Status: OK Firmware Version: 7.24 Serial Number: *snip* Rebuild Priority: Medium Expand Priority: Medium Number Of Ports: 2 The storage diagnostic (both on the both boot-up screen for the controller and within the 'Management Homepage' and the 'HP Array Diagnostic Utility') recently starting showing the following status a fault for the battery for the accelerator: Accelerator Status: Temporarily Disabled Error Code: Cache Disabled Low Batteries Serial Number: *snip* Total Memory: 524288 KB Read Cache: 25% Write Cache: 75% Battery Status: Failed Read Errors: 0 Write Errors: 0 We replaced the battery with a new unit (a visual inspection of the P400 card showing nothing unusual) and saw the same fault - but expected this to disappear over the course of a few hours/days as it charged. This didn't happy, and the fault status remains the same as above. Given the battery is a genuine part from HP, I wouldn't have expected a replacement battery to fail straight away, or to be dead-on-arrival (is that naivety on my part?). Is the immediate failure of a replacement battery, for a failed battery, on a battery backed accelerator a common occurrence? Or are we likely to have an storage controller with an impending and critical fault? Is there any diagnostic that could tell me more about the failed battery, without cracking the server open again? Many thanks!

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  • RAID-1 and regular drive removal (using RAID-1 as a backup measure)

    - by Vi
    Is using mdadm's RAID-1 of 2 partitions (one on laptop's internal HDD, one on external HDD) a good idea. I want the system to work as RAID-1 if both drives are present, work as regular volume (degradad RAID-1) if external HDD is unplugged and quickly resync when I plug external HDD again. Questions: Is it a good idea? Will write-intent bitmap be enough for this task or I need something else? Should I consider doing it at filesystem level (3b. if yes, how?). Basic requirements are: Quick resync when I re-add the external drive (provided I hasn't changed that partition). More or less consistent data on the removed drive if I remove it not during write/resync operation. If I remove the drive during resync I expect the data to be somewhat inconsistent, but expect quick resync completion when I re-add it again. E.g. I want the the remaining drive to track what is changed (there can be a lot of changes) and that sync back only those parts that need it.

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  • I am getting a SQUID Error

    - by Dave
    Hello, What exactly is wrong here Entry in SQUID File--- httpd_accel_host virtual httpd_accel_port 80 httpd_accel_with_proxy on httpd_accel_uses_host_header on acl lan src 192.168.1.1 192.168.2.0/24 http_access allow localhost Error after: service squid restart 2010/02/01 14:24:29| Processing Configuration File: /etc/squid/squid.conf (depth 0) 2010/02/01 14:24:29| cache_cf.cc(361) parseOneConfigFile: squid.conf:10 unrecognized: 'broken_vary_encoding' 2010/02/01 14:24:29| WARNING: Netmasks are deprecated. Please use CIDR masks instead. 2010/02/01 14:24:29| WARNING: IPv4 netmasks are particularly nasty when used to compare IPv6 to IPv4 ranges. 2010/02/01 14:24:29| WARNING: For now we assume you meant to write /0 2010/02/01 14:24:29| WARNING: (B) '::/4294967200' is a subnetwork of (A) '::' 2010/02/01 14:24:29| WARNING: because of this '::' is ignored to keep splay tree searching predictable 2010/02/01 14:24:29| WARNING: You should probably remove '::/4294967200' from the ACL named 'all' 2010/02/01 14:24:29| WARNING: Netmasks are deprecated. Please use CIDR masks instead. 2010/02/01 14:24:29| WARNING: IPv4 netmasks are particularly nasty when used to compare IPv6 to IPv4 ranges. 2010/02/01 14:24:29| WARNING: For now we assume you meant to write /128 2010/02/01 14:24:29| aclParseIpData: unknown netmask '255.255.255.255' in '127.0.0.1/255.255.255.255' FATAL: Bungled squid.conf line 25: acl localhost src 127.0.0.1/255.255.255.255 Squid Cache (Version 3.1.0.14): Terminated abnormally. CPU Usage: 0.013 seconds = 0.006 user + 0.007 sys Maximum Resident Size: 0 KB Page faults with physical i/o: 0 Also please provide me with the simplest squid script for the proxy to run. Restrictions can be entered. Thanks Dave

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  • IIS 7.5 + Windows Server 2008 R2 + ASP.NET 4.0 HTTP 500 Error?

    - by Dave
    Hi, I'm having an issue I cannot track down and I have looked through the forums and not found anything that sheds any light. I have a fresh install of a Server 2008 R2 Web that I am trying to load an application I created and tested on a Windows 7 machine running IIS 7.5 using ASP.NET 4.0. Everything works fine on the dev machine. But when I used the Web Deployment tool to move it to the server, I now get a HTTP 500 error without a lot of information: Module AspNetInitClrHostFailureModule Notification BeginRequest Handler StaticFile Error Code 0x80070002 Requested URL http://192.168.1.83:80/ Physical Path C:\JustStreamIt Logon Method Not yet determined Logon User Not yet determined Failed Request Tracing Log Directory C:\inetpub\logs\FailedReqLogFiles And in my trace file I get: view trace Warning -SET_RESPONSE_ERROR_DESCRIPTION ErrorDescription An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur. view trace Warning -MODULE_SET_RESPONSE_ERROR_STATUS ModuleName AspNetInitClrHostFailureModule Notification 1 HttpStatus 500 HttpReason Internal Server Error HttpSubStatus 0 ErrorCode 2147942402 ConfigExceptionInfo Notification BEGIN_REQUEST ErrorCode The system cannot find the file specified. (0x80070002) And I get the following in the Application Log: Log Name: Application Source: Microsoft-Windows-IIS-W3SVC-WP Date: 5/28/2010 2:08:10 PM Event ID: 2299 Task Category: None Level: Error Keywords: Classic User: N/A Computer: win-ltfkdo1dnfp Description: An application has reported as being unhealthy. The worker process will now request a recycle. Reason given: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur. . The data is the error. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Microsoft-Windows-IIS-W3SVC-WP" Guid="{670080D9-742A-4187-8D16-41143D1290BD}" EventSourceName="W3SVC-WP" /> <EventID Qualifiers="49152">2299</EventID> <Version>0</Version> <Level>2</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2010-05-28T21:08:10.000000000Z" /> <EventRecordID>1663</EventRecordID> <Correlation /> <Execution ProcessID="0" ThreadID="0" /> <Channel>Application</Channel> <Computer>win-ltfkdo1dnfp</Computer> <Security /> </System> <EventData> <Data Name="Reason">An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur. </Data> <Binary>02000780</Binary> </EventData> </Event> Anyone have a suggestion about where I should start looking?

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