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  • Long term system health monitor

    - by user30336
    As an experienced user, I sometimes notice that things are not going well with my computer. For example, my backup drive recently started cycling up and down, so I guessed it was probably dying, and replaced it. I detected this with my ears. Windows did not seem to notice or care. There ought to be software that monitors overall system health by keeping track of things like this, so that unusual events or increasing error rates will not be shrugged off. Among other things: disk errors that are recovered, corrupt network packets (at above the baseline expected rate) and crashes of trusted programs are early warnings. Is there any software that tries to use this kind of monitoring to warn of impending trouble?

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  • Can I install applications to Remote Desktop Session Hosts via Group Policy?

    - by CC.
    I have a GPO that installs an application using the Software installation policy under Computer Configuration. I assign this GPO to the OU with our desktop/laptop computers, and my clients all install the software fine. I have another separate OU that covers our new Server 2012 RD session hosts. Previously, we've manually installed applications on our one Terminal Server. Now we have one Broker and two Session Hosts. I'd like to take my existing GPO, assign it to the session hosts, and have it install on the next reboot after a gpupdate so I'm sure that each is identically configured. Given this info: Should I be able to install applications via GPO to Session Hosts? Will Group Policy automatically install the applications as if I put the session host into /install mode, or do I need to do that?

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  • Good free way to clone a hard drive or a partition and send the image over the network (through FTP, Windows file sharing, "anything")?

    - by Deleted
    What I ideally would like is a free software solution which can: Boot from a CD/DVD/USB-stick and Clone a complete hard drive or a partition and Send the resulting image file over the network through Windows file sharing (SMB, I could use SAMBA on my server to receive the image) or through FTP or through SFTP or through SCP It should work with Linux and Windows file-systems (where specific file system support is necessary) Is there anything good out there like this? I know Wikipedia lists a lot of cloning software. But I'm looking for a personal recommendation which you have used yourself, as I find it more credible (I'll see from the upvotes if the answer is liked by a lot of visitors).

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  • Convert an entire DVD (with chapter menus) to Flash?

    - by Nick
    I was recently asked to put a DVD onto a website - I ripped the chapters individually as MP4 files and created a nicely formatted playlist which lets you select the chapter you'd like, but apparently it's a really big requirement that the original DVD menus are preserved too. Agh. I have no experience with using Flash or ActionScript whatsoever, and do not even have the software, so I was wondering if there is any software out there that could do this? I'm not too worried by cost as it'll presumably be cheaper than buying a copy of Flash anyway.

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  • (core dumped) ${TOMCAT_START}?

    - by Farticle Pilter
    I am running COMSOL (a scientific software) as a server, to which MATLAB is connected to. After a while, COMSOL aborted with the following error message. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolbatch.ini Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolserver.ini COMSOL 4.4 (Build: 150) started listening on port 2036 Use the console command 'close' to exit the program A client with username 's' has logged on to the server from 'beads.myuniversity.edu' using port 2036. /software/linux/x86_64/comsol-4.4/bin/comsol: line 1436: 32757 Aborted (core dumped) ${TOMCAT_START} What might be the cause of this (core dumped) ${TOMCAT_START}? How may I fix it?

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  • Working in Germany (Munich) [closed]

    - by adri
    My husband and I are relocating to Munich in August (He's German). I have been looking for jobs online since I heard that software developers are in great demand. And by the looks of it, seems to be correct. There are lots of offers on line but I have a problem, my german is not spectacular. I would rate it as basic. Good to be a tourist but not good to write anything formal, not even my cover letter. So I was wondering how hard is really going to be to find a job for me with virtually no german (I'm studying, but good german is not going to happen over night). Also, would it be possible to secure a job before arriving to Germany? I have nearly 10 years of working experience developing software, mostly in .net (c#, vb, winForms, asp.net) but I also know java. 3 years experience as a team leader for groups of up to 8 people. In the last couple of years I've been working mostly on digitalization of documents (such as birth certificates and the like) but I'm more than willing to try other fields Also I speak English, Spanish, Italian, a bit of portuguese and of course a bit of german.

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  • Migrating Split Access Database from one domain to another (not working, details in Q)

    - by Expo_Rob
    Some background: I'm a programmer, not a network administrator, who has been asked to migrate some accounting software (Integrated Office Accounting version 3.2) from an existing domain (OLD_NETWORK) to a new domain (NEW_NETWORK). No-body at the office knows how it works under the hood. It is a split Access 2000 database with the back-end shared and on a file server (which is also the DC) using mapped drives. The DC is NT Server 4 SP 6. The new server is server 2003. The two networks are running independently (ie: two computers on each desk). I have been able to get new computers set up on NEW_NETWORK and working with the IOA software just perfectly but for one problem: The company here uses other entirely separate databases which access the tables IOA maintains (specifically the 'customers' table) via links. To switch between these systems, you press F11 then File-Open the appropriate database and away you go (this is necessary to maintain the permissions that the IOA system uses to protect the customers table). The entire database is Access 2000, the links go to other Access databases, SQL-Server is not involved in any way, nor is a migration to SQL server likely. If I can't migrate anything over, everything will stay as it is, and the NEW_NETWORK computers will not be used. The problem: When I try and update these seperate databases (I shall call one "BANK_ACCOUNT", but the name does not matter), it says "this recordset cannot be updated". It also will sometimes not pull information out of the 'customers' table (ie: date_entered) when looking at a report of everyone who opened a bank account on a certain day (ie: today). I have tried: Giving 'everyone' full control via. shared directory permissions Giving 'everyone' full control on a file system level Checking the permissions within Access (everyone has full read/write on all tables) Copying the entire server contents from one file server to another (ie: xcopy everything) Copying the entire local client files from one computer to another, putting them in the exact same position in the file system, with the same permissons (or full control to 'everyone'). Running as an Administrator Taking one of the NEW_NETWORK computers, having it join OLD_NETWORK and run the software (direct copy from a working system with identical drive mappings), this did not work Weeping openly My Question: Is there anything else I can try? (sorry for this being so long)

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  • AT91SAM7X512's SPI peripheral gets disabled on write to SPI_TDR

    - by Dor
    My AT91SAM7X512's SPI peripheral gets disabled on the X time (X varies) that I write to SPI_TDR. As a result, the processor hangs on the while loop that checks the TDRE flag in SPI_SR. This while loop is located in the function SPI_Write() that belongs to the software package/library provided by ATMEL. The problem occurs arbitrarily - sometimes everything works OK and sometimes it fails on repeated attempts (attemp = downloading the same binary to the MCU and running the program). Configurations are (defined in the order of writing): SPI_MR: MSTR = 1 PS = 0 PCSDEC = 0 PCS = 0111 DLYBCS = 0 SPI_CSR[3]: CPOL = 0 NCPHA = 1 CSAAT = 0 BITS = 0000 SCBR = 20 DLYBS = 0 DLYBCT = 0 SPI_CR: SPIEN = 1 After setting the configurations, the code verifies that the SPI is enabled, by checking the SPIENS flag. I perform a transmission of bytes as follows: const short int dataSize = 5; // Filling array with random data unsigned char data[dataSize] = {0xA5, 0x34, 0x12, 0x00, 0xFF}; short int i = 0; volatile unsigned short dummyRead; SetCS3(); // NPCS3 == PIOA15 while(i-- < dataSize) { mySPI_Write(data[i]); while((AT91C_BASE_SPI0->SPI_SR & AT91C_SPI_TXEMPTY) == 0); dummyRead = SPI_Read(); // SPI_Read() from Atmel's library } ClearCS3(); /**********************************/ void mySPI_Write(unsigned char data) { while ((AT91C_BASE_SPI0->SPI_SR & AT91C_SPI_TXEMPTY) == 0); AT91C_BASE_SPI0->SPI_TDR = data; while ((AT91C_BASE_SPI0->SPI_SR & AT91C_SPI_TDRE) == 0); // <-- This is where // the processor hangs, because that the SPI peripheral is disabled // (SPIENS equals 0), which makes TDRE equal to 0 forever. } Questions: What's causing the SPI peripheral to become disabled on the write to SPI_TDR? Should I un-comment the line in SPI_Write() that reads the SPI_RDR register? Means, the 4th line in the following code: (The 4th line is originally marked as a comment) void SPI_Write(AT91S_SPI *spi, unsigned int npcs, unsigned short data) { // Discard contents of RDR register //volatile unsigned int discard = spi->SPI_RDR; /* Send data */ while ((spi->SPI_SR & AT91C_SPI_TXEMPTY) == 0); spi->SPI_TDR = data | SPI_PCS(npcs); while ((spi->SPI_SR & AT91C_SPI_TDRE) == 0); } Is there something wrong with the code above that transmits 5 bytes of data? Please note: The NPCS line num. 3 is a GPIO line (means, in PIO mode), and is not controlled by the SPI controller. I'm controlling this line by myself in the code, by de/asserting the ChipSelect#3 (NPCS3) pin when needed. The reason that I'm doing so is because that problems occurred while trying to let the SPI controller to control this pin. I didn't reset the SPI peripheral twice, because that the errata tells to reset it twice only if I perform a reset - which I don't do. Quoting the errata: If a software reset (SWRST in the SPI Control Register) is performed, the SPI may not work properly (the clock is enabled before the chip select.) Problem Fix/Workaround The SPI Control Register field, SWRST (Software Reset) needs to be written twice to be cor- rectly set. I noticed that sometimes, if I put a delay before the write to the SPI_TDR register (in SPI_Write()), then the code works perfectly and the communications succeeds. Useful links: AT91SAM7X Series Preliminary.pdf ATMEL software package/library spi.c from Atmel's library spi.h from Atmel's library An example of initializing the SPI and performing a transfer of 5 bytes is highly appreciated and helpful.

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  • Why does File::Slurp return a scalar when it should return a list?

    - by BrianH
    I am new to the File::Slurp module, and on my first test with it, it was not giving the results I was expecting. It took me a while to figure it out, so now I am interested in why I was seeing this certain behavior. My call to File::Slurp looked like this: my @array = read_file( $file ) || die "Cannot read $file\n"; I included the "die" part because I am used to doing that when opening files. My @array would always end up with the entire contents of the file in the first element of the array. Finally I took out the "|| die" section, and it started working as I expected. Here is an example to illustrate: perl -de0 Loading DB routines from perl5db.pl version 1.22 Editor support available. Enter h or `h h' for help, or `man perldebug' for more help. main::(-e:1): 0 DB<1> use File::Slurp DB<2> $file = '/usr/java6_64/copyright' DB<3> x @array1 = read_file( $file ) 0 'Licensed material - Property of IBM.' 1 'IBM(R) SDK, Java(TM) Technology Edition, Version 6' 2 'IBM(R) Runtime Environment, Java(TM) Technology Edition, Version 6' 3 '' 4 'Copyright Sun Microsystems Inc, 1992, 2008. All rights reserved.' 5 'Copyright IBM Corporation, 1998, 2009. All rights reserved.' 6 '' 7 'The Apache Software License, Version 1.1 and Version 2.0' 8 'Copyright 1999-2007 The Apache Software Foundation. All rights reserved.' 9 '' 10 'Other copyright acknowledgements can be found in the Notices file.' 11 '' 12 'The Java technology is owned and exclusively licensed by Sun Microsystems Inc.' 13 'Java and all Java-based trademarks and logos are trademarks or registered' 14 'trademarks of Sun Microsystems Inc. in the United States and other countries.' 15 '' 16 'US Govt Users Restricted Rights - Use duplication or disclosure' 17 'restricted by GSA ADP Schedule Contract with IBM Corp.' DB<4> x @array2 = read_file( $file ) || die "Cannot read $file\n"; 0 'Licensed material - Property of IBM. IBM(R) SDK, Java(TM) Technology Edition, Version 6 IBM(R) Runtime Environment, Java(TM) Technology Edition, Version 6 Copyright Sun Microsystems Inc, 1992, 2008. All rights reserved. Copyright IBM Corporation, 1998, 2009. All rights reserved. The Apache Software License, Version 1.1 and Version 2.0 Copyright 1999-2007 The Apache Software Foundation. All rights reserved. Other copyright acknowledgements can be found in the Notices file. The Java technology is owned and exclusively licensed by Sun Microsystems Inc. Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems Inc. in the United States and other countries. US Govt Users Restricted Rights - Use duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. ' Why does the || die make a difference? I have a feeling this might be more of a Perl precedence question instead of a File::Slurp question. I looked in the File::Slurp module and it looks like it is set to croak if there is a problem, so I guess the proper way to do it is to allow File::Slurp to croak for you. Now I'm just curious why I was seeing these differences.

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  • Slicing a time range into parts

    - by beporter
    First question. Be gentle. I'm working on software that tracks technicians' time spent working on tasks. The software needs to be enhanced to recognize different billable rate multipliers based on the day of the week and the time of day. (For example, "Time and a half after 5 PM on weekdays.") The tech using the software is only required to log the date, his start time and his stop time (in hours and minutes). The software is expected to break the time entry into parts at the boundaries of when the rate multipliers change. A single time entry is not permitted to span multiple days. Here is a partial sample of the rate table. The first-level array keys are the days of the week, obviously. The second-level array keys represent the time of the day when the new multiplier kicks in, and runs until the next sequential entry in the array. The array values are the multiplier for that time range. [rateTable] => Array ( [Monday] => Array ( [00:00:00] => 1.5 [08:00:00] => 1 [17:00:00] => 1.5 [23:59:59] => 1 ) [Tuesday] => Array ( [00:00:00] => 1.5 [08:00:00] => 1 [17:00:00] => 1.5 [23:59:59] => 1 ) ... ) In plain English, this represents a time-and-a-half rate from midnight to 8 am, regular rate from 8 to 5 pm, and time-and-a-half again from 5 till 11:59 pm. The time that these breaks occur may be arbitrary to the second and there can be an arbitrary number of them for each day. (This format is entirely negotiable, but my goal is to make it as easily human-readable as possible.) As an example: a time entry logged on Monday from 15:00:00 (3 PM) to 21:00:00 (9 PM) would consist of 2 hours billed at 1x and 4 hours billed at 1.5x. It is also possible for a single time entry to span multiple breaks. Using the example rateTable above, a time entry from 6 AM to 9 PM would have 3 sub-ranges from 6-8 AM @ 1.5x, 8AM-5PM @ 1x, and 5-9 PM @ 1.5x. By contrast, it's also possible that a time entry may only be from 08:15:00 to 08:30:00 and be entirely encompassed in the range of a single multiplier. I could really use some help coding up some PHP (or at least devising an algorithm) that can take a day of the week, a start time and a stop time and parse into into the required subparts. It would be ideal to have the output be an array that consists of multiple entries for a (start,stop,multiplier) triplet. For the above example, the output would be: [output] => Array ( [0] => Array ( [start] => 15:00:00 [stop] => 17:00:00 [multiplier] => 1 ) [1] => Array ( [start] => 17:00:00 [stop] => 21:00:00 [multiplier] => 1.5 ) ) I just plain can't wrap my head around the logic of splitting a single (start,stop) into (potentially) multiple subparts.

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  • What is wrong with my SQL syntax here?

    - by CT
    I'm trying to create a IT asset database with a web front end. I've gathered some data from forms using POST as well as one variable that had already written to a cookie. This is the first time I have tried to enter the data into the database. Here is the code: <?php //get data $id = $_POST['id']; $company = $_POST['company']; $location = $_POST['location']; $purchase_date = $_POST['purchase_date']; $purchase_order = $_POST['purchase_order']; $value = $_POST['value']; $type = $_COOKIE["type"]; $notes = $_POST['notes']; $manufacturer = $_POST['manufacturer']; $model = $_POST['model']; $warranty = $_POST['warranty']; //set cookies setcookie('id', $id); setcookie('company', $company); setcookie('location', $location); setcookie('purchase_date', $purchase_date); setcookie('purchase_order', $purchase_order); setcookie('value', $value); setcookie('type', $type); setcookie('notes', $notes); setcookie('manufacturer', $manufacturer); setcookie('model', $model); setcookie('warranty', $warranty); //checkdata //start database interactions // connect to mysql server and database "asset_db" mysql_connect("localhost", "asset_db", "asset_db") or die(mysql_error()); mysql_select_db("asset_db") or die(mysql_error()); // Insert a row of information into the table "asset" mysql_query("INSERT INTO asset (id, company, location, purchase_date, purchase_order, value, type, notes) VALUES('$id', '$company', '$location', '$purchase_date', $purchase_order', '$value', '$type', '$notes') ") or die(mysql_error()); echo "Asset Added"; // Insert a row of information into the table "server" mysql_query("INSERT INTO server (id, manufacturer, model, warranty) VALUES('$id', '$manufacturer', '$model', '$warranty') ") or die(mysql_error()); echo "Server Added"; //destination url //header("Location: verify_submit_server.php"); ?> The error I get is: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '', '678 ', 'Server', '789')' at line 2 That data is just test data I was trying to throw in there, but it looks to be the at the $value, $type, $notes. Here are the table create statements if they help: <?php // connect to mysql server and database "asset_db" mysql_connect("localhost", "asset_db", "asset_db") or die(mysql_error()); mysql_select_db("asset_db") or die(mysql_error()); // create asset table mysql_query("CREATE TABLE asset( id VARCHAR(50) PRIMARY KEY, company VARCHAR(50), location VARCHAR(50), purchase_date VARCHAR(50), purchase_order VARCHAR(50), value VARCHAR(50), type VARCHAR(50), notes VARCHAR(200))") or die(mysql_error()); echo "Asset Table Created.</br />"; // create software table mysql_query("CREATE TABLE software( id VARCHAR(50) PRIMARY KEY, software VARCHAR(50), license VARCHAR(50))") or die(mysql_error()); echo "Software Table Created.</br />"; // create laptop table mysql_query("CREATE TABLE laptop( id VARCHAR(50) PRIMARY KEY, manufacturer VARCHAR(50), model VARCHAR(50), serial_number VARCHAR(50), esc VARCHAR(50), user VARCHAR(50), prev_user VARCHAR(50), warranty VARCHAR(50))") or die(mysql_error()); echo "Laptop Table Created.</br />"; // create desktop table mysql_query("CREATE TABLE desktop( id VARCHAR(50) PRIMARY KEY, manufacturer VARCHAR(50), model VARCHAR(50), serial_number VARCHAR(50), esc VARCHAR(50), user VARCHAR(50), prev_user VARCHAR(50), warranty VARCHAR(50))") or die(mysql_error()); echo "Desktop Table Created.</br />"; // create server table mysql_query("CREATE TABLE server( id VARCHAR(50) PRIMARY KEY, manufacturer VARCHAR(50), model VARCHAR(50), warranty VARCHAR(50))") or die(mysql_error()); echo "Server Table Created.</br />"; ?> Running a standard LAMP stack on Ubuntu 10.04. Thank you.

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  • Agile: User Stories for Machine Learning Project?

    - by benjismith
    I've just finished up with a prototype implementation of a supervised learning algorithm, automatically assigning categorical tags to all the items in our company database (roughly 5 million items). The results look good, and I've been given the go-ahead to plan the production implementation project. I've done this kind of work before, so I know how the functional components of the software. I need a collection of web crawlers to fetch data. I need to extract features from the crawled documents. Those documents need to be segregated into a "training set" and a "classification set", and feature-vectors need to be extracted from each document. Those feature vectors are self-organized into clusters, and the clusters are passed through a series of rebalancing operations. Etc etc etc etc. So I put together a plan, with about 30 unique development/deployment tasks, each with time estimates. The first stage of development -- ignoring some advanced features that we'd like to have in the long-term, but aren't high enough priority to make it into the development schedule yet -- is slated for about two months worth of work. (Keep in mind that I already have a working prototype, so the final implementation is significantly simpler than if the project was starting from scratch.) My manager said the plan looked good to him, but he asked if I could reorganize the tasks into user stories, for a few reasons: (1) our project management software is totally organized around user stories; (2) all of our scheduling is based on fitting entire user stories into sprints, rather than individually scheduling tasks; (3) other teams -- like the web developers -- have made great use of agile methodologies, and they've benefited from modelling all the software features as user stories. So I created a user story at the top level of the project: As a user of the system, I want to search for items by category, so that I can easily find the most relevant items within a huge, complex database. Or maybe a better top-level story for this feature would be: As a content editor, I want to automatically create categorical designations for the items in our database, so that customers can easily find high-value data within our huge, complex database. But that's not the real problem. The tricky part, for me, is figuring out how to create subordinate user stories for the rest of the machine learning architecture. Case in point... I know that the algorithm requires two major architectural subdivisions: (A) training, and (B) classification. And I know that the training portion of the architecture requires construction of a cluster-space. All the Agile Development literature I've read seems to indicate that a user story should be the "smallest possible implementation that provides any business value". And that makes a lot of sense when designing a piece of end-user software. Start small, and then incrementally add value when users demand additional functionality. But a cluster-space, in and of itself, provides zero business value. Nor does a crawler, or a feature-extractor. There's no business value (not for the end-user, or for any of the roles internal to the company) in a partial system. A trained cluster-space is only possible with the crawler and feature extractor, and only relevant if we also develop an accompanying classifier. I suppose it would be possible to create user stories where the subordinate components of the system act as the users in the stories: As a supervised-learning cluster-space construction routine, I want to consume data from a feature extractor, so that I can exist. But that seems really weird. What benefit does it provide me as the developer (or our users, or any other stakeholders, for that matter) to model my user stories like that? Although the main story can be easily divided along architectural-component boundaries (crawler, trainer, classifier, etc), I can't think of any useful decomposition from a user's perspective. What do you guys think? How do you plan Agile user stories for sophisticated, indivisible, non-user-facing components?

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  • regex to match trailing whitespace, but not lines which are entirely whitespace (indent placeholders

    - by Tim
    I've been trying to construct a ruby regex which matches trailing spaces - but not indentation placeholders - so I can gsub them out. I had this /\b[\t ]+$/ and it was working a treat until I realised it only works when the line ends are [a-zA-Z]. :-( So I evolved it into this /(?!^[\t ]+)[\t ]+$/ and it seems like it's getting better, but it still doesn't work properly. I've spent hours trying to get this to work to no avail. Please help. Here's some text test so it's easy to throw into Rubular, but the indent lines are getting stripped so it'll need a few spaces and/or tabs. Once lines 3 & 4 have spaces back in, it shouldn't match on lines 3-5, 7, 9. some test test some test test some other test (text) some other test (text) likely here{ dfdf } likely here{ dfdf } and this ; and this ; Alternatively, is there an simpler / more elegant way to do this?

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  • Looking for evolutionary music example code

    - by Dan Dyer
    I would like to implement an interactive evolutionary algorithm for generating music (probably just simple melodies to start with). I'd like to use JFugue for this. Its website claims that it is well-suited to evolutionary music, but I can't find any evolutionary examples. I already have a framework to provide the evolutonary machinery. What I am looking for is some simple, working code that demonstrates viable approaches for the musical part (e.g. suitable encodings and evolutionary operators for the evolved tunes). I have some ideas how it might be achieved, but I'm not particularly knowledgeable about music theory, so to start with I'd like to just reimplement something that is known to work. So does anybody have, or know of, any freely available code (any language is fine) that demonstrates one or more approaches to evolutionary music? EDIT: I'm specifically looking for evolutionary code rather than other techniques that could be used for music synthesis.

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  • In what areas might the use of F# be more appropriate than C#?

    - by Peter McGrattan
    Over the last few years F# has evolved into one of Microsoft's fully supported languages employing many ideas incubated in OCaml, ML and Haskell. Over the last several years C# has extended it's general purpose features by introducing more and more functional language features: LINQ (list comprehension), Lamdas, Closures, Anonymous Delegates and more... Given C#'s adoption of these functional features and F#'s taxonomy as an impure functional language (it allows YOU to access framework libraries or change shared state when a function is called if you want to) there is a strong similarity between the two languages although each has it's own polar opposite primary emphasis. I'm interested in any successful models employing these two languages in your production polyglot programs and also the areas within production software (web apps, client apps, server apps) you have written in F# in the past year or so that you would previously have written in C#. EDIT: Edited based on feedback from close votes with the intent of reducing perceived ambiguity.

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  • How to create a container that holds different types of function pointers in C++?

    - by Alex
    I'm doing a linear genetic programming project, where programs are bred and evolved by means of natural evolution mechanisms. Their "DNA" is basically a container (I've used arrays and vectors successfully) which contain function pointers to a set of functions available. Now, for simple problems, such as mathematical problems, I could use one type-defined function pointer which could point to functions that all return a double and all take as parameters two doubles. Unfortunately this is not very practical. I need to be able to have a container which can have different sorts of function pointers, say a function pointer to a function which takes no arguments, or a function which takes one argument, or a function which returns something, etc (you get the idea)... Is there any way to do this using any kind of container ? Could I do that using a container which contains polymorphic classes, which in their turn have various kinds of function pointers? I hope someone can direct me towards a solution because redesigning everything I've done so far is going to be painful.

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  • Merging MySQL Structure and Data

    - by Shahid
    I have a MySQL database running on a deployment machine which also contains data. Then I have another MySQL database which has evolved in terms of STRUCTURE + DATA for some time. I need a way to merge the changes (ONLY) for both structure and data to the DB in deployment machine without disturbing the existing data. Does anyone know of a tool available which can do this safely. I have had a look at a few comparison tools but I need a tool which can automate the merge operation. Note also that most of the data in the tables is in BINARY so I can't use many file comparison tools. Does any one know of a solution to this? thanks

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  • Diff tool that can compare sub-sections of files

    - by EvilPuppetMaster
    I'm looking for a diff tool that will allow me to compare just a sub-section of a file with a section of another file, or even of itself. Preferably eclipse based but will take all suggestions. Yes I know I can copy out the two sections into different files and compare those, but that is very tedious when you are trying to do a large amount of refactoring. Basically I'm trying to remove as much duplicated code as possible from a code base that is suffering from a great deal of ctrl-V 'inheritance' ;-) However the pasted parts have evolved apart a little over time.

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  • In what specific areas has F# proven more applicable than C#?

    - by Peter McGrattan
    Over the last few years F# has evolved into one of Microsoft's fully supported languages employing many ideas incubated in OCaml, ML and Haskell. Over the last several years C# has extended it's general purpose features by introducing more and more functional language features: LINQ (list comprehension), Lamdas, Closures, Anonymous Delegates and more... Given C#'s adoption of these functional features and F#'s taxonomy as an impure functional language (it allows YOU to access framework libraries or change shared state when a function is called if you want to) there is a strong similarity between the two languages although each has it's own polar opposite primary emphasis. I'm interested in any successful models employing these two languages in your production polyglot programs and also the areas within production software (web apps, client apps, server apps) you have written in F# in the past year or so that you would previously have written in C#. EDIT: Altered title with the intent of reducing perceived ambiguity.

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  • Function return type style

    - by JB
    I'm learning c++0x, at least the parts supported by the Visual C++ Express 2010 Beta. This is a question about style rather than how it works. Perhaps it's too early for style and good practice to have evolved yet for a standard that isn't even released yet... In c++0x you can define the return type of a method using - type at the end of the function instead of putting the type at the start. I believe this change in syntax is required due to lambdas and some use cases of the new decltype keyword, but you can use it anywhere as far as I know. // Old style int add1(int a, int b) { return a + b; } // New style return type auto add2(int a, int b) -> int { return a + b; } My question really then, is given that some functions will need to be defined in the new way is it considered good style to define all functions in this way for consistency? Or should I stick to only using it when necessary?

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  • Resources for Win32 C/C++ programming

    - by EricM
    I have experience in a variety of languages (Java, Perl, C#, PHP, javascript, ansi-C for microprocessors, Objective-C and others), with Win32 programming not being an area I've done a lot of work in. Now part of my job entails maintaining a large Win32 codebase that stretches back 15 years and includes everything from C written originally for Win95 to MFC to COM to 64-bit code for Win7 to C++ using Boost and so on. If there's a variation on how to do something it's in there. Are there any good Win32 C/C++ references that discuss both the proper way to do things today and give you a little sense of how things evolved? Something like this discussion of all the various boolean types, or how to approach the API monstrosity of simply copying a string. I don't see my career heading too far down this path, but I do like to understand what I'm working with and I think this is an important part of programming history. thanks, Eric

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  • ActiveX Deployment

    - by balexandre
    We have used for 8 years an ActiveX builder in Delphi and we are now using it on Internet Explorer over the internet (and not on local machine as it was always been the process until here) As today we use this object in the HTML: <object id="ActiveX" classid="CLSID:8EC68701-329D-4567-BCB5-9EE4BA43D358" width="14" height="14"> <param name="tabName" value="AccountPlan"> </object> My question is, what are the viable methods to deploy an Active X Control over HTTP/S, what parameters should I need to append to tell where to find it (http url) and download a new one if newer is available? I got into this article from MSDN Library but refers to VB5.0 and it's dated 1997 ... Just wanna know what can I do now, as probably the tools evolved since last century All help is appreciated, Thank you.

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  • Managing test data for Junit tests.

    - by nobody
    Hi, We are facing one problem in managing test data(xmls which is used to create mock objects). The data which we have currently has been evolved over a long period of time. Each time we add a new functionality or test case we add new data to test that functionality. Now, the problem is when the business requirement changes the format( like length or format of a variable) or any change which the test data doesn't support , we need to change the entire test data which is 100s of MBs in size. Could anyone suggest a better method or process to overcome this problem? Any suggestion would be appreciated.

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  • Install XP Mode with VirtualBox Using the VMLite Plugin

    - by Mysticgeek
    Would you like to run XP Mode, but prefer Sun’s VirtualBox for virtualization?  Thanks to the free VMLite plugin, you can quickly and easily run XP Mode in or alongside VirtualBox. Yesterday we showed you one method to install XP Mode in VirtualBox, unfortunately in that situation you lose XP’s activation, and it isn’t possible to reactivate it. Today we show you a tried and true method for running XP mode in VirtualBox and integrating it seamlessly with Windows 7. Note: You need to have Windows 7 Professional or above to use XP Mode in this manner. Install XP Mode Make sure you’re logged in with Administrator rights for the entire process. The first thing you’ll want to do is install XP Mode on your system (link below). You don’t need to install Windows Virtual PC. Go through and install XP Mode using the defaults. Install VirtualBox Next you’ll need to install VirtualBox 3.1.2 or higher if it isn’t installed already. If you have an older version of VirtualBox installed, make sure to update it. During setup you’re notified that your network connection will be reset. Check the box next to Always trust software from “Sun Microsystems, Inc.” then click Install.   Setup only takes a couple of minutes, and does not require a reboot…which is always nice. Install VMLite XP Mode Plugin The next thing we’ll need to install is the VMLite XP Mode Plugin. Again Installation is simple following the install wizard. During the install like with VirtualBox you’ll be asked to install the device software. After it’s installed go to the Start menu and run VMLite Wizard as Administrator. Select the location of the XP Mode Package which by default should be in C:\Program Files\Windows XP Mode. Accept the EULA…and notice that it’s meant for Windows 7 Professional, Enterprise, and Ultimate editions. Next, name the machine, choose the install folder, and type in a password. Select if you want Automatic Updates turned on or not. Wait while the process completes then click Finish.   The VMLite XP Mode will set up to run the first time. That is all there is to this section. You can run XP Mode from within the VMLite Workstation right away. XP Mode is fully activated already, and the Guest Additions are already installed, so there’s nothing else you need to do!  XP Mode is the whole way ready to use. Integration with VirtualBox Since we installed the VMLite Plugin, when you open VirtualBox you’ll see it listed as one of your machines and you can start it up from here.   Here we see VMLite XP Mode running in Sun VirtualBox. Integrate with Windows 7 To integrate it with Windows 7 click on Machine \ Seamless Mode…   Here you can see the XP menu and Taskbar will be placed on top of Windows 7. From here you can access what you need from XP Mode.   Here we see XP running on Virtual Box in Seamless Mode. We have the old XP WordPad sitting next to the new Windows 7 version of WordPad. This works so seamlessly you forget if your working in XP or Windows 7. In this example we have Windows Home Server Console running in Windows 7, while installing MSE from IE 6 in XP Mode. At the top of the screen you will still have access to the VMs controls.   You can click the button to exit Seamless Mode, or simply hit the right “CTRL+L” Conclusion This is a very slick way to run XP Mode in VirtualBox on any machine that doesn’t have Hardware Virtualization. This method also doesn’t lose the XP Mode activation and is actually extremely easy to set up. If you prefer VMware (like we do), Check out how to run XP Mode on machines without Hardware Virtualization capability, and also how to create an XP Mode for Vista and Windows 7 Home Premium. Links Download XP Mode Download VirtualBox Download VMLite XP Mode Plugin for VirtualBox (Site Registration Required) Similar Articles Productive Geek Tips Search for Install Packages from the Ubuntu Command LineHow To Run XP Mode in VirtualBox on Windows 7 (sort of)Install and Use the VLC Media Player on Ubuntu LinuxInstall Monodevelop on Ubuntu LinuxInstall Flash Plugin Manually in Firefox on Vista TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Enable Check Box Selection in Windows 7 OnlineOCR – Free OCR Service Betting on the Blind Side, a Vanity Fair article 30 Minimal Logo Designs that Say More with Less LEGO Digital Designer – Free Create a Personal Website Quickly using Flavors.me

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  • Install XP Mode with VirtualBox Using the VMLite Plugin

    - by Mysticgeek
    Would you like to run XP Mode, but prefer Sun’s VirtualBox for virtualization?  Thanks to the free VMLite plugin, you can quickly and easily run XP Mode in or alongside VirtualBox. Yesterday we showed you one method to install XP Mode in VirtualBox, unfortunately in that situation you lose XP’s activation, and it isn’t possible to reactivate it. Today we show you a tried and true method for running XP mode in VirtualBox and integrating it seamlessly with Windows 7. Note: You need to have Windows 7 Professional or above to use XP Mode in this manner. Install XP Mode Make sure you’re logged in with Administrator rights for the entire process. The first thing you’ll want to do is install XP Mode on your system (link below). You don’t need to install Windows Virtual PC. Go through and install XP Mode using the defaults. Install VirtualBox Next you’ll need to install VirtualBox 3.1.2 or higher if it isn’t installed already. If you have an older version of VirtualBox installed, make sure to update it. During setup you’re notified that your network connection will be reset. Check the box next to Always trust software from “Sun Microsystems, Inc.” then click Install.   Setup only takes a couple of minutes, and does not require a reboot…which is always nice. Install VMLite XP Mode Plugin The next thing we’ll need to install is the VMLite XP Mode Plugin. Again Installation is simple following the install wizard. During the install like with VirtualBox you’ll be asked to install the device software. After it’s installed go to the Start menu and run VMLite Wizard as Administrator. Select the location of the XP Mode Package which by default should be in C:\Program Files\Windows XP Mode. Accept the EULA…and notice that it’s meant for Windows 7 Professional, Enterprise, and Ultimate editions. Next, name the machine, choose the install folder, and type in a password. Select if you want Automatic Updates turned on or not. Wait while the process completes then click Finish.   The VMLite XP Mode will set up to run the first time. That is all there is to this section. You can run XP Mode from within the VMLite Workstation right away. XP Mode is fully activated already, and the Guest Additions are already installed, so there’s nothing else you need to do!  XP Mode is the whole way ready to use. Integration with VirtualBox Since we installed the VMLite Plugin, when you open VirtualBox you’ll see it listed as one of your machines and you can start it up from here.   Here we see VMLite XP Mode running in Sun VirtualBox. Integrate with Windows 7 To integrate it with Windows 7 click on Machine \ Seamless Mode…   Here you can see the XP menu and Taskbar will be placed on top of Windows 7. From here you can access what you need from XP Mode.   Here we see XP running on Virtual Box in Seamless Mode. We have the old XP WordPad sitting next to the new Windows 7 version of WordPad. This works so seamlessly you forget if your working in XP or Windows 7. In this example we have Windows Home Server Console running in Windows 7, while installing MSE from IE 6 in XP Mode. At the top of the screen you will still have access to the VMs controls.   You can click the button to exit Seamless Mode, or simply hit the right “CTRL+L” Conclusion This is a very slick way to run XP Mode in VirtualBox on any machine that doesn’t have Hardware Virtualization. This method also doesn’t lose the XP Mode activation and is actually extremely easy to set up. If you prefer VMware (like we do), Check out how to run XP Mode on machines without Hardware Virtualization capability, and also how to create an XP Mode for Vista and Windows 7 Home Premium. Links Download XP Mode Download VirtualBox Download VMLite XP Mode Plugin for VirtualBox (Site Registration Required) Similar Articles Productive Geek Tips Search for Install Packages from the Ubuntu Command LineHow To Run XP Mode in VirtualBox on Windows 7 (sort of)Install and Use the VLC Media Player on Ubuntu LinuxInstall Monodevelop on Ubuntu LinuxInstall Flash Plugin Manually in Firefox on Vista TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Enable Check Box Selection in Windows 7 OnlineOCR – Free OCR Service Betting on the Blind Side, a Vanity Fair article 30 Minimal Logo Designs that Say More with Less LEGO Digital Designer – Free Create a Personal Website Quickly using Flavors.me

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