Search Results

Search found 19603 results on 785 pages for 'variable length'.

Page 257/785 | < Previous Page | 253 254 255 256 257 258 259 260 261 262 263 264  | Next Page >

  • Why can't my c++ program find the necessary .dll file?

    - by RemiX
    I am trying to use OpenCV (a computer vision library), which appearently uses a few .dll files, located in C:\OpenCV\bin (which has been added to the system PATH variable). However, if I try to run a simple test program, it gives a system error: "The program can't start because highgui.dll is missing from your computer. Try reinstalling the program to fix this problem." If I copy the highgui.dll file into the system32 folder, it works, but I don't want to have to put all the necessary .dll files in the system32 folder. Does anyone know why the .dll file can't be found or what I should do to fix it? (I already checked all paths in the PATH variable for validity.)

    Read the article

  • How can I map URLs to filenames with perl?

    - by eugene y
    In a simple webapp I need to map URLs to filenames or filepaths. This app has a requirement that it can depend only on modules in the core Perl ditribution (5.6.0 and later). The problem is that filename length on most filesystems is limited to 255. Another limit is about 32k subdirectories in a single folder. My solution: my $filename = $url; if (length($filename) > $MAXPATHLEN) { # if filename longer than 255 my $part1 = substr($filename, 0, $MAXPATHLEN - 13); # first 242 chars my $part2 = crypt(0, substr($filename, $MAXPATHLEN - 13)); # 13 chars hash $filename = $part1.$part2; } $filename =~ s!/!_!g; # escape directory separator Is it reliable ? How can it be improved ?

    Read the article

  • Compare string and array

    - by alex
    Hello all! I have an array and variable. If the variable does not exist in the array to be added, if there is - remove from the array. Why not work? $ar = ["a","b","c"]; $vr = "b"; foreach ($ar as $i => $value) { if ($value == $vr) { unset ($ar[$i]); } else { $ar[] = $vr; $ar = array_unique($ar); } } Thanks.

    Read the article

  • password limitations in SQL Server and MySql

    - by asteroid
    Does MySql 5.1 and SQL Server 2008 (Web edition, Standard) have any functional password limitations other than length limits? Are metacharacters in any form a bad idea to use, like bang, pipe, hash, any slash, carrot, and so on? I know that MySql 5.1 has a password length limitation of 16 characters that is hardcoded, but I was wondering, are any metacharacters (i.e. non alphanumerics) a bad idea to use? And is this true in SQL Server 2008 Web edition, Standard? So specifically: can symbols like: /`~:}{[]^ be used successfully? I would hope it doesn't matter to the database, but I don't understand enough about password storage in enterprise database systems yet to know for sure, and I was looking for confirmation or an explanation.

    Read the article

  • Rails gives wrong headers after upgrade 2.3.5 -> 2.3.8

    - by macsniper
    I just upgraded from rails 2.3.5 to rails 2.3.8, but now my redirects are not working properly. I get the following as the response HTTP Headers: HTTP/1.1 302 Moved Temporarily Date: Wed, 02 Jun 2010 09:40:39 GMT Content-Length: 93 Content-Type: text/html whereas I got previous: HTTP/1.1 302 Moved Temporarily Connection: close Date: Wed, 02 Jun 2010 09:41:18 GMT Set-Cookie: _session_id=<correct id>; path=/ Status: 302 Found Location: <correct url> Cache-Control: no-cache Server: Mongrel 1.1.5 Content-Type: text/html; charset=utf-8 Content-Length: 93 Anyone knows how to fix this? Despite the fact that the redirect is not working, the login-cookie is not set too (but I think, this is both related somehow). I have already tried to override redirect_to in order to set response.headers['Location'] etc., but they did not appear in the response.

    Read the article

  • How can I format numbers as money in JavaScript?

    - by Daniel Magliola
    I would like to format a price in JavaScript. Basically, I have a float variable, and I'd like to have a function that will receive that variable, and output: "$ 2,500.00" What's the best way to do this? EDIT: OK, since I haven't gotten any answers better than the code I implemented, plus my own answer has been voted down and I can't put my own answer as the right one... Here it is... var DecimalSeparator = Number("1.2").toLocaleString().substr(1,1); var AmountWithCommas = Amount.toLocaleString(); var arParts = String(AmountWithCommas).split(DecimalSeparator); var intPart = arParts[0]; var decPart = (arParts.length > 1 ? arParts[1] : ''); decPart = (decPart + '00').substr(0,2); return '£ ' + intPart + DecimalSeparator + decPart;

    Read the article

  • How to open a new screen with additional parameters?

    - by Solo
    I've read through the FAQ of Android Dev Guid (http://developer.android.com/guide/appendix/faq/commontasks.html#opennewscreen) but I'm not sure how can I open a new screen with additional parameters passed into it. Let's say I'm going to open screen2, with a variable indicating the current user name so that I could greet the users. Is it possible? Intent i; i = new Intent(this, screen2.class); //How to pass variable to screen2? startActivity(i);

    Read the article

  • Mootools event leak

    - by user572263
    The example to demonstrate the issue can be found here: link text The test shows a basic Mootools class that contains an element variable with a click event attached. There’s also a “cleanup” function to remove the event and nullify the element variable. My problem is that when I loop a thousand times to create the “LeakClass” instance and clean it up, it causes a major memory leak like there’s no tomorrow. I tested this on IE8 and Chrome. On the other hand what I’ve noticed is that if I comment out the line that adds the “click” event, the code doesn’t leak. Can somebody please help me structure the class/event in a manner that it doesn’t leak. Thanks in advance.

    Read the article

  • My cookies won't stay (PHP).

    - by RemiX
    I'm building an autologin system using cookies, but one fundamental part of the functionality of the cookies fails: they are non-persistent over different sessions - or even pages! In my login script, I set the cookies like this: setcookie('userID', $userID, time()+86400); // (edited after replies) $userID has a value. Then I print the $_COOKIE variable and it says array(['base_usid'] = 1); So that's good, but when I click the home page and print the $_COOKIE variable there, it says NULL. Does anyone see the problem?

    Read the article

  • declare and assign value my sql stored procedure(5.0.45)

    - by naveen84n
    Hi everybody , DELIMITER $$ DROP PROCEDURE IF EXISTS quotations.sp_addservices $$ CREATE PROCEDURE quotations.sp_addservices (In categoryname varchar(25),in servicename varchar(250),in hours float,in cost float,in basis nvarchar (100)) BEGIN insert into categorydetails (Category_Name) values (categoryname); if(categoryname!=null) then DECLARE category_id int; set category_id= select max(Category_Id) from categorydetails ; insert into servicesdetails (Service_Name,Category_Id,Hours,Cost,Basis) values(servicename,category_id,hours,cost,basis); end if; END $$ DELIMITER ; This is my stored procedure .I have to retrive the value of categoryid that is posted into the database which is auto increased.Here i cant declare the variable and assign value to variable.Am getting error like Script line: 4 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 'DECLARE category_id int; set category_id= select max(Category_Id) from categor' at line 9 Can any one help me Thanks in advance.

    Read the article

  • How do I Parse the response I get back from CURL?

    - by Daelan
    I'm sending some data to an external URL using Curl. The server sends me back a response in a string like this: trnApproved=0&trnId=10000002&messageId=7&messageText=DECLINE I can assign this string to a variable like this: $txResult = curl_exec( $ch ); echo "Result:<BR>"; echo $txResult; But how do I use the data that is sent back? I need a way to get the value of each variable sent back so that I can use it in my PHP script. Any help would be much appreciated. Thanks.

    Read the article

  • Simple haskell splitlist

    - by js7354
    I have the following function which takes a list and returns two sublists split at a given element n. However, I only need to split it in half, with odd length lists having a larger first sublist splitlist :: [a] -> Int -> ([a],[a]) splitlist [] = ([],[]) splitlist l@(x : xs) n | n > 0 = (x : ys, zs) | otherwise = (l, []) where (ys,zs) = splitlist xs (n - 1) I know I need to change the signature to [a] - ([a],[a]), but where in the code should I put something like length(xs) so that I don't break recursion? Thank you.

    Read the article

  • Looking for a better alternative to linklabels

    - by user986086
    Please see the two long linklabels below (please ignore the black lines above) Linklabels' length is made dynamically during runtime, and as seen, could be that it's too long and overlapping other text we have (there is another text where you see 'Differences'). My questions are: a) Can I limit the maximum length of a linklabel? b) Is that possible to use a scrollbar with a linklabel (or any similar control) in case that it's too long? e.g. setting it to 200 pixels, and in case it's longer, the user has to scroll the horizontal scroller and see end of the text. I'm using VB.NET on Visual Studio 2008 THANK YOU

    Read the article

  • Remove the period and everything after it using jQuery

    - by veryserious
    Is there a way to remove the period and everything after it using jQuery? The numbers following the period vary in length, so it's not as simple as finding the length. For example: <span class="changethis">505.234</span> <span class="changethis">23.93</span> Thanks for your help! P.S. (bonus) If there is a way to round up if it's x.5 or higher that would be awesome. Not essential though.

    Read the article

  • Comparing large strings in JavaScript with a hash

    - by user4815162342
    I have a form with a textarea that can contain large amounts of content (say, articles for a blog) edited using one of a number of third party rich text editors. I'm trying to implement something like an autosave feature, which should submit the content through ajax if it's changed. However, I have to work around the fact that some of the editors I have as options don't support an "isdirty" flag, or an "onchange" event which I can use to see if the content has changed since the last save. So, as a workaround, what I'd like to do is keep a copy of the content in a variable (let's call it lastSaveContent), as of the last save, and compare it with the current text when the "autosave" function fires (on a timer) to see if it's different. However, I'm worried about how much memory that could take up with very large documents. Would it be more efficient to store some sort of hash in the lastSaveContent variable, instead of the entire string, and then compare the hash values? If so, can you recommend a good javascript library/jquery plugin that implements an appropriate hash for this requirement?

    Read the article

  • Odd toString behavior in javascript

    - by George
    I have this small function that's behaving oddly to me. Easy enough to work around, but enough to pique my curiosity. function formatNumber(number,style) { if (typeof style == 'number') { style = style.toString(); } return (number).format(style); } The return format part is based on another function that requires the style variable to be a string to work properly, so I'm just checking if style is a number and if it is to convert it to a string. When the function above is written as is, the format function format doesn't work properly. However when I write it as simply: return (number).format(style.toString()); Everything works. Is there a difference between putting the .toString function inside the format call vs performing it before hand and setting it as the variable style?

    Read the article

  • Dynamically create Javascript object and give class

    - by George
    I'm dynamically creating option elements for a drop down menu using Javascript and would like to know how to add a class to them so that I can style them with CSS. I have the following code: for (var i=0;i<portfolio.length-1;i++) { portfolioSelect.options[portfolioSelect.options.length] = new Option(portfolio[i]); } where portfolio is an array populated by an outside source. HTML where options inserted: <select id="portfolio" name="portfolio"> <option selected="selected" value="Select One">Select One</option> </select>

    Read the article

  • if (self = [super init]) vs. if ((self = [super init]))

    - by JOM
    Was just doing a code review and started to wonder: I thought if (self = [super init]) checks whether assigning return value of [super init] to variable self was successful or not (value of operation). Thus (self = nil) would actually be TRUE. I thought if ((self = [super init])) checks what is the value of self after assignment (value of variable). Thus ((self = nil)) would be FALSE. Which one is the correct way to use when initializing your own classes? Apple documentation uses the former one (for example here), which style I'm actually using now.

    Read the article

  • question about Batcher odd-even sort

    - by davit-datuashvili
    hi i ave question about Batcher's odd-even sort i have following code public class Batcher{ public static void batchsort(int a[],int l,int r){ int n=r-l+1; for (int p=1;p<n;p+=p) for (int k=p;k>0;k/=2) for (int j=k%p;j+k<n;j+=(k+k)) for (int i=0;i<n-j-k;i++) if ((j+i)/(p+p)==(j+i+k)/(p+p)) exch(a,l+j+i,l+j+i+k); } public static void main(String[]args){ int a[]=new int[]{2,4,3,4,6,5,3}; batchsort(a,0,a.length-1); for (int i=0;i<a.length;i++){ System.out.println(a[i]); } } public static void exch(int a[],int i,int j){ int t=a[i]; a[i]=a[j]; a[j]=t; } } //result is 3 3 4 4 5 2 6 what i missed ? hat is wrong?

    Read the article

  • Setting an attribute in Jquery not working

    - by Probocop
    Hi, I have the following function which limits the amount of characters you can enter into a text area. What's meant to happen is, if the text length is higher than the text limit, set an attribute of disabled="disabled" on the submit button, but it isn't getting set, my function code is as follows: function limitChars(textid, limit, infodiv) { var text = $('#'+textid).val(); var textlength = text.length; if(textlength > limit) { $('#' + infodiv).html('You cannot write more then '+limit+' characters!'); $('input#submit').attr('disabled', 'disabled'); } else { $('#' + infodiv).html('You have '+ (limit - textlength) +' characters left.'); } } Any ideas?

    Read the article

  • Sending a file from memory (rather than disk) over HTTP using libcurl

    - by cinek1lol
    Hi! I would like to send pictures via a program written in C + +. - OK WinExec("C:\\curl\\curl.exe -H Expect: -F \"fileupload=@C:\\curl\\ok.jpg\" -F \"xml=yes\" -# \"http://www.imageshack.us/index.php\" -o data.txt -A \"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1\" -e \"http://www.imageshack.us\"", NULL); It works, but I would like to send the pictures from pre-loaded carrier to a variable char (you know what I mean? First off, I load the pictures into a variable and then send the variable), cause now I have to specify the path of the picture on a disk. I wanted to write this program in c++ by using the curl library, not through exe. extension. I have also found such a program (which has been modified by me a bit) #include <stdio.h> #include <string.h> #include <iostream> #include <curl/curl.h> #include <curl/types.h> #include <curl/easy.h> int main(int argc, char *argv[]) { CURL *curl; CURLcode res; struct curl_httppost *formpost=NULL; struct curl_httppost *lastptr=NULL; struct curl_slist *headerlist=NULL; static const char buf[] = "Expect:"; curl_global_init(CURL_GLOBAL_ALL); /* Fill in the file upload field */ curl_formadd(&formpost, &lastptr, CURLFORM_COPYNAME, "send", CURLFORM_FILE, "nowy.jpg", CURLFORM_END); curl_formadd(&formpost, &lastptr, CURLFORM_COPYNAME, "nowy.jpg", CURLFORM_COPYCONTENTS, "nowy.jpg", CURLFORM_END); curl_formadd(&formpost, &lastptr, CURLFORM_COPYNAME, "submit", CURLFORM_COPYCONTENTS, "send", CURLFORM_END); curl = curl_easy_init(); headerlist = curl_slist_append(headerlist, buf); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, "http://www.imageshack.us/index.php"); if ( (argc == 2) && (!strcmp(argv[1], "xml=yes")) ) curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist); curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost); res = curl_easy_perform(curl); curl_easy_cleanup(curl); curl_formfree(formpost); curl_slist_free_all (headerlist); } system("pause"); return 0; }

    Read the article

  • You have an error in your SQL syntax; check the manual that corresponds to your MySQL

    - by LuisEValencia
    I am trying to run a mysql query to find all occurences of a text. I have a syntax error but dont know where or how to fix it I am using sqlyog to execute this script DECLARE @url VARCHAR(255) SET @url = '1720' SELECT 'select * from ' + RTRIM(tbl.name) + ' where ' + RTRIM(col.name) + ' like %' + RTRIM(@url) + '%' FROM sysobjects tbl INNER JOIN syscolumns col ON tbl.id = col.id AND col.xtype IN (167, 175, 231, 239) -- (n)char and (n)varchar, there may be others to include AND col.length > 30 -- arbitrary min length into which you might store a URL WHERE tbl.type = 'U' -- user defined table 1 queries executed, 0 success, 1 errors, 0 warnings Query: declare @url varchar(255) set @url = '1720' select 'select * from ' + rtrim(tbl.name) + ' where ' + rtrim(col.name) + ' like %' ... Error Code: 1064 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 'declare @url varchar(255)

    Read the article

< Previous Page | 253 254 255 256 257 258 259 260 261 262 263 264  | Next Page >