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• Cancel the calculation if input-mismatch was found

  - by Lert Pianapitham

  Hallo everybody, i have programmed a sub procedure, that will be called in the main procedure (called by event of mainForm), to valid the inputs before the main calculation. now i'm searching for a method, how can i cancel the calculation and refocus the mainForm if some inputs mismatch. i think, it's unnecessary to use the Try-Catch statment to trap the error from calculation because i know what is its source and it should be prevented due to the code preformance. Has someone an idea to due with this? best regards Lert Pianapitham

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• Is it standard C++ to set the value of a member pointer to the address of another member in the cons

  - by SilverSun

  Is this valid? class Foo { Bar m_bar; Bar * m_woo; public: Foo() : m_bar(42, 123), m_woo(&m_bar) { } };

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• Accessing JAR resources

  - by Pablo Fernandez

  I have a jar file with resources (mainly configuration for caches, logging, etc) that I want to distribute. I'm having a problem with the relative paths for those resources, so I did what I've found in another stackoverflow question, which said that this was a valid way: ClassInTheSamePackageOfTheResource.class.getResourceAsStream('resource.xml'); Sadly this does not work. Any ideas? Thanks! PS: Obviously I cannot use absolute paths, and I'd like to avoid environment variables if possible

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• How does who-has-blocked-me-on-msn sites work?

  - by Mari

  I understand that this isn't actually possible. So... what do the do? Can a program retrive a list of msn contacts using a valid user/password?

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• Get generic interface class object

  - by Phuong Nguyen de ManCity fan

  How to get class object of a generic interface? For example, Boolean.class, Date.class. But List<Boolean>.class doesn't seem to be syntax-valid.

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• PHP rsa gePublicKey from .pem file

  - by mazheruddin

  Trying to verify received signature with following code. $file = "C:\key_file.pem"; $keypair = Crypt_RSA_KeyPair::fromPEMString(file_get_contents($file)); $public_key = $keypair->getPublicKey(); $rsa_pub_key = Crypt_RSA_Key::fromString($public_key->toString()); $rsa_obj = new Crypt_RSA; $verify_status = $rsa_obj->validateSign($text,$recieved_signed_sign, $rsa_pub_key) ? 'valid' : 'invalid'; getting error as Fatal error: Call to undefined method PEAR_Error::getPublicKey() in C:\Program Files\xxxx\rsa.php

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• folder deleting not working

  - by user1150440

  If System.IO.Directory.Exists(HttpContext.Current.Server.MapPath(Server.MapPath("images/TravelogueGallery/" & getMaxID()))) Then System.IO.Directory.Delete(HttpContext.Current.Server.MapPath("images/TravelogueGallery/" & getMaxID()), True) End If I am using the above code snippet to delete a directory but i get this error "'G:\Projects\Latest\LTCIndia 05-04-12 1415\images\TravelogueGallery\19' is not a valid virtual path. " Whats wrong with the code?

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• Java: Writing a DOM to an XML file (formatting issues)

  - by Vhaerun

  I'm using org.w3c XML API to open an existing XML file. I'm removing some nodes , and I'm adding others instead . The problem is that the new nodes that are added are written one after another , with no newline and no indentation what so ever. While it's true that the XML file is valid , it is very hard for a human to examnine it. Is there anyway to add indentation , or at least a newline after each node ?

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• MySQLi - declaring variable after bind_param?

  - by Kerry

  This may be a completely dumb question, but I've seen a couple examples declaring the variables AFTER putting them in bind_param: http://devzone.zend.com/article/686 I've never seen this done before and all my programming knowledge says I should define them before hand. Is this a valid/preferred way?

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• Is there a way to test if a Function/Sub is available in VB6?

  - by Clay Nichols

  We have a few Subs (like a WriteErrorToLog and some AutomatedTesting) that I'd like to make optional in case we want to reuse a component. I'd like to be able to do something like if AddressOf( Sub) is valid then execute Sub.

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• how to get right offset of an element? - jQuery

  - by Alex

  This is probably a really simple question, but how do I go about getting the right offset of an element in jQuery? I can do: $("#whatever").offset().left; and it is valid. But it seems that: $("#whatever").offset().right is undefined. So how does one accomplish this in jQuery? Thanks!!

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• how to validate

  - by kumar

  I have this Calender Control I am using..user can select any date from the calender.. I need to validate the dates like Saturday and Sundays and 1/1 and 1/25.. if they select these days I need to show them Popup message not valid date? can anybody help me out.. thanks

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• Is it possible to get a stored cookie's path? (PHP)

  - by RemiX

  Quick question: One can set the path where a cookie is valid, but is it also possible to get (read) this path from the cookie (in PHP)? Or else: is it possible to extend a cookie's time, without knowing what path it's on (but keeping the path the same)?

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• Object allocation in C++

  - by Poiuyt

  char *myfunc() { char *temp = "string"; return temp; } In this piece of code, where does the allocation of the object pointed to by temp happen and what would be its scope? Is this function a valid way to return a char* pointer?

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• C++: Validate a pointer?

  - by Rosarch

  If I have a pointer, like char* foo, is there any way to determine if foo points to a valid location in memory? (So, foo is not NULL, and delete has not yet been called on it.)

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• Standard C++ method for validating a URLs format?

  - by Jakobud

  Is there a easy standards-compliant way to check if a URL string is a valid format? Either through a specific URL-type class or maybe someone could show me how to do a regex validation of it?

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• Which Browsers don't support ids for in page navigation (fragid)?

  - by dshaw

  In HTML5, name is no longer a valid attribute of the anchor tag (<a name="yadayada">). It has been mentioned that older browsers do not recognize the the new recommended approach (<a id="yadaya"> or any id for that matter). What are the browsers which don't recognize ids for in page navigation (fragids)? Are we talking about Netscape-era browsers or the usual suspect, Internet Explorer 6?

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• Whats wrong with this while loop?

  - by David

  boolean r = false ; int s = 0 ; while (r == false) ; { s = getInt() ; if (!(s>=0 && s<=2)) System.out.println ("try again not a valid response") ; else r = true ; } The text never displays itself even when a 3 or a 123 is entered and the loop never terminates. Whats wrong here?

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• What charectar range would this represent (regular expression)?

  - by Alex

  Recently I came across a character range that was the following: [/-+] My very simple question is, is this even a valid charectar range? If so, what range of charectars would it match?

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• How to find out if an XML document contains a certain element (by tag name)?

  - by dfjhdfjhdf

  Suppose I have downloaded a valid XML document via Ajax (var docum = request.responseXML;). Now how do I find out if it contains a certain element (by tag name)?

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• safely reading directory contents

  - by Jack

  Is it safe to read directory entries via readdir() or scandir() while files are being created/deleted in this directory? Should I prefer one over the other? When I say "safe" I mean entries returned by these functions are valid and can be operated without crushing the program. Thanks.

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• Simple DB2 Query for connection validation

  - by Eric Tuttleman

  I'm looking for a simple DB2 query that can be used to test if a database connection in pool is still valid. It needs to be a generic query that would execute regardless of which databases exist. For other database servers, I've used something like 'SELECT 1' or 'SELECT version();' What would be an equivalent for DB2? Thanks!

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• What character range would this represent (regular expression)?

  - by Alex

  Recently I came across a character range that was the following: [/-+] My very simple question is, is this even a valid character range? If so, what range of characters would it match?

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• Increment and Decrement operators

  - by viswanathan

  How are the below valid and invalid as shown and what do they mean. When would such a situation arise to write this piece of code. ++x = 5; // legal --x = 5; // legal x++ = 5; // illegal x-- = 5; // illegal

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• Is objective C 2.0 a proper superset of C?

  - by RankWeis

  I've heard that objective-C is a proper superset of C, but is objective-C 2.0? The reason I ask is that either it isn't, or I misunderstand the phrase 'proper superset', because this code is valid C syntax: import int main () { char *nil = "hello"; printf("%s\n",nil); } But does not compile in Objective-C 2.0. Obviously, this is an easily fixable problem, but I'm writing a paper, and feel that this is something that should be pointed out.

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