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  • Overloaded function print

    - by Olga Shirokova
    For one of the assignments I need to create an overloaded function print that prints an element or all elements of an array. I have no problem with printing the entire array: for( int i = 0; i < size; i++) cout << list [ i ] <<endl; But how do I make the same function to print only one particular element? The way I see it is to ask a user what to print, either one element or all numbers. Or am I missing something here?

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  • c++/cli pass (managed) delegate to unmanaged code

    - by Ron Klein
    How do I pass a function pointer from managed C++ (C++/CLI) to an unmanaged method? I read a few articles, like this one from MSDN, but it describes two different assemblies, while I want only one. Here is my code: 1) Header (MyInterop.ManagedCppLib.h): #pragma once using namespace System; namespace MyInterop { namespace ManagedCppLib { public ref class MyManagedClass { public: void DoSomething(); }; }} 2) CPP Code (MyInterop.ManagedCppLib.cpp) #include "stdafx.h" #include "MyInterop.ManagedCppLib.h" #pragma unmanaged void UnmanagedMethod(int a, int b, void (*sum)(const int)) { int result = a + b; sum(result); } #pragma managed void MyInterop::ManagedCppLib::MyManagedClass::DoSomething() { System::Console::WriteLine("hello from managed C++"); UnmanagedMethod(3, 7, /* ANY IDEA??? */); } I tried creating my managed delegate and then I tried to use Marshal::GetFunctionPointerForDelegate method, but I couldn't compile.

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  • ColdFusion - pass regex backreference to function call

    - by stubotnik
    Hi, I'm using ColdFusion's reReplace() function for regular expression pattern replacement. I'd like to use a function call for the replacement string, and pass a matched backreference to it. Something like this: <cfset s = "STARTDATE_2010-05-07 00:05:00.0_ENDDATE" /> <cfset s = reReplace(s, "STARTDATE_([\s-.:0-9]*)_ENDDATE", dateAdd("h", 1, "\1")) /> But that fails because "The value of parameter 3, which is currently \1, must be a class java.util.Date value." Is there any other way to achieve this? Thanks, Stu

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  • how do I create a bidirectional bridge using iptables

    - by Kolzoi
    Setup: I have a samsung LCD TV that is connected via eth0 to a T41 Thinkpad running Ubuntu 10.10 which is wirelessly connected to the home router. I am trying to get Samsung's remote control app working on my iPad but the app won't allow me to put in an ip address and only discovers the tv if it's on the same subnet as the iPad (lame). So I need the laptop to route packets from eth0 to the wireless interface (wlan0), and I need about 3 ports on the wlan0 interface to be forwarded to the samsung tv. Hopefully all this makes sense. I've been messing around with iptables and samsung is now able to access internet via laptop wireless, but mapping from wlan0 back to the samsung tv is eluding me.

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  • Error message in XSLT with C# extension function

    - by iHeartGreek
    Hi! I am received the following error while trying to implement a C# extension function in XSLT. Extension function parameters or return values which have CLR type 'Char[]' are not supported.** code: <xsl:variable name="stringList"> <xsl:value-of select="extension:GetList('AAA BBB CCC', ' ')"/> </xsl:variable> <msxsl:script language="C#" implements-prefix="extension"> <![CDATA[ public string[] GetList(string str, char[] delimiter) { ... ... return str.Split(delimiter, StringSplitOptions.None); } ]]> </msxsl:script> Can someone explain this error message and how to get past it? Thanks!

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  • Can we send an two dimensional array as input for a function in Objective C.

    - by srikanth rongali
    I have data stored in two dimensional array. I want it to send in to a function in this way, I have written the following in another class. // do if( array[iTemp][1] != 10 ) { Enemy *enemyXX = [[Enemy alloc] init]; [enemyXX EnemyXXTarget: array[iTemp][1]]; iTemp++; }while( iTemp != 9); // -(void)EnemyXXTarget:(id)sender; is function declared in Enemy class. But is giving me an error error: incompatible type for argument 1 of 'EnemyXXTarget:' Where I am wrong ? Please help me. Thank You.

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  • How to deal with name/value pairs of function arguments in MATLAB

    - by Richie Cotton
    I have a function that takes optional arguments as name/value pairs. function example(varargin) % Lots of set up stuff vargs = varargin; nargs = length(vargs); names = vargs(1:2:nargs); values = vargs(2:2:nargs); validnames = {'foo', 'bar', 'baz'}; for name = names validatestring(name{:}, validnames); end % Do something ... foo = strmatch('foo', names); disp(values(foo)) end example('foo', 1:10, 'bar', 'qwerty') It seems that there is a lot of effort involved in extracting the appropriate values (and it still isn't particularly robust again badly specified inputs). Is there a better way of handling these name/value pairs? Are there any helper functions that come with MATLAB to assist?

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  • VSTS 2010 Create a custom Process Template

    - by AH
    Hi, I am required to create a custom Process Template on using VSTS 2010 Beta 1. Given that I did not use templates in VSTS 2008 I am not even sure where to start. The TFS and VS 2010 are all installed and configured. First I tried to create a test project and selected a built-in template "MSF for Agile Software etc." I wanted to try to modify (customize) it to begin with but was not sure how to do it. I searched high and low but could not find a sample/walkthrough/hint/help on how to develop a process template from scratch. Sorry for the messy explanation but I am kind of VERY frustrated...

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  • tutorials/books to create a plugin/module/library?

    - by fayer
    i wonder if there are tutorials/books explaining how you create a library/plugin/module for other to implement? libraries/frameworks like solr, doctrine, codeigniter etc. cause it seems that they follow the same pattern. having one "bootstrap" file to load configurations, other classes and so on. i aim to understand the basics, so i can create a such library. cause at the moment i want to code an address book that other can use. just include a bootstrap file and they are ready to use my classes (like Doctrine). recommendations of sources to learn these things of stuff? you experienced guys, how did you learn it? thanks.

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  • Using NVL function in SQL, please help!

    - by user363024
    I'm needing to select first and last name in a table which is working fine in the following SQL, but the part that isn't working is the NVL function. The file should show all pilots at a company that fly helicopters and IF they don't have a licence the field HT_NAME should come up as 'N/A' and the field for end hours flown should be 0. I've put NVL function in as my text details but it still isn't working. Have i made a syntax error? Help would be appreciated. Select E.EMP_NBR, E.EMP_FIRSTNAME || ' ' || E.EMP_LASTNAME, E.EMP_PILOT, ED.HT_NBR, NVL(HT.HT_NAME, 'N/A'), NVL(ED.END_HRS_FLOWN, 0), ED.END_LAST_ANNUAL_REVIEW_DATE From ENDORSEMENT ED, EMPLOYEE E, HELICOPTER_TYPE HT WHERE HT.HT_NBR = ED.HT_NBR (+) ORDER BY ED.END_HRS_FLOWN DESC, E.EMP_FIRSTNAME || ' ' || E.EMP_LASTNAME ASC; should make employees who are not pilots appear with a N/A under heli type and 0 under hours flown. It isn't working - even though I have tried multiple things to repair it.

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  • Certain running applications cause middle-click in firefox to function differently under windows 7

    - by Charlie
    If I have photoshop, vlc player, or even just the windows task list open, when I middle click in firefox to get it to open in new tab (by depressing both buttons on my Lenovo g550 with alps touchpad), the mouse icon changes to some variety of scroll type feature, middle click doesn't work, and if I persist then the other programs take focus, and some crash. I assume the scroll like feature must be intended as added functionality in either windows 7 or the alps touchpad driver, but no settings adjustments seem to be able to remove this, and I could see nothing regarding this in firefox. I would really like to fix this! Thanks.

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  • Problem with pointers and getstring function

    - by volting
    I am trying to write a function to get a string from the uart1. Its for an embedded system so I don't want to use malloc. The pointer that is passed to the getstring function seems to point to garbage after the gets_e_uart1() is called. I don't use pointers too often so I'm sure it is something really stupid and trivial that Im doing wrong. Regards, V int main() { char *ptr = 0; while(1) { gets_e_uart1(ptr, 100); puts_uart1(ptr); } return 0; }*end main*/ //------------------------------------------------------------------------- //gets a string and echos it //returns 0 if there is no error char getstring_e_uart1(char *stringPtr_, const int SIZE_) { char buffer_[SIZE_]; stringPtr_ = buffer_; int start_ = 0, end_ = SIZE_ - 1; char errorflag = 0; /*keep geting chars until newline char recieved*/ while((buffer_[start_++] = getchar_uart1())!= 0x0D) { putchar_uart1(buffer_[start_]);//echo it /*check for end of buffer wraparound if neccesary*/ if(start_ == end_) { start_ = 0; errorflag = 1; } } putchar_uart1('\n'); putchar_uart1('\r'); /*check for end of buffer wraparound if neccesary*/ if(start_ == end_) { buffer_[0] = '\0'; errorflag = 1; } else { buffer_[start_++] = '\0'; } return errorflag; } Update: I decided to go with approach of passing a pointer an array to the function. This works nicely, thanks to everyone for the informative answers. Updated Code: //------------------------------------------------------------------------- //argument 1 should be a pointer to an array, //and the second argument should be the size of the array //gets a string and echos it //returns 0 if there is no error char getstring_e_uart1(char *stringPtr_, const int SIZE_) { char *startPtr_ = stringPtr_; char *endPtr_ = startPtr_ + (SIZE_ - 1); char errorflag = 0; /*keep geting chars until newline char recieved*/ while((*stringPtr_ = getchar_uart1())!= 0x0D) { putchar_uart1(*stringPtr_);//echo it stringPtr_++; /*check for end of buffer wraparound if neccesary*/ if(stringPtr_ == endPtr_) { stringPtr_ = startPtr_; errorflag = 1; } } putchar_uart1('\n'); putchar_uart1('\r'); /*check for end of buffer wraparound if neccesary*/ if(stringPtr_ == endPtr_) { stringPtr_ = startPtr_; *stringPtr_ = '\0'; errorflag = 1; } else { *stringPtr_ = '\0'; } return errorflag; }

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  • Translate parse_git_branch function to zsh from bash (for prompt)

    - by yar
    I am using this function in Bash function parse_git_branch { git_status="$(git status 2> /dev/null)" pattern="^# On branch ([^${IFS}]*)" if [[ ! ${git_status}} =~ "working directory clean" ]]; then state="*" fi # add an else if or two here if you want to get more specific if [[ ${git_status} =~ ${pattern} ]]; then branch=${BASH_REMATCH[1]} echo "(${branch}${state})" fi } but I'm determined to use zsh. While I can use this perfectly as a shell script (even without a shebang) in my .zshrc the error is a parse error on this line if [[ ! ${git_status}}... What do I need to do to get it ready for zshell? Edit: The "actual error" I'm getting is " parse error near } and it refers to the line with the strange double }}, which works on Bash. Edit: Here's the final code, just for fun: parse_git_branch() { git_status="$(git status 2> /dev/null)" pattern="^# On branch ([^[:space:]]*)" if [[ ! ${git_status} =~ "working directory clean" ]]; then state="*" fi if [[ ${git_status} =~ ${pattern} ]]; then branch=${match[1]} echo "(${branch}${state})" fi } setopt PROMPT_SUBST PROMPT='$PR_GREEN%n@$PR_GREEN%m%u$PR_NO_COLOR:$PR_BLUE%2c$PR_NO_COLOR%(!.#.$)' RPROMPT='$PR_GREEN$(parse_git_branch)$PR_NO_COLOR' Thanks to everybody for your patience and help. Edit: The best answer has schooled us all: git status is porcelain (UI). Good scripting goes against GIT plumbing. Here's the final function: parse_git_branch() { in_wd="$(git rev-parse --is-inside-work-tree 2>/dev/null)" || return test "$in_wd" = true || return state='' git diff-index HEAD --quiet 2>/dev/null || state='*' branch="$(git symbolic-ref HEAD 2>/dev/null)" test -z "$branch" && branch='<detached-HEAD>' echo "(${branch#refs/heads/}${state})" } PROMPT='$PR_GREEN%n@$PR_GREEN%m%u$PR_NO_COLOR:$PR_BLUE%2c$PR_NO_COLOR%(!.#.$)' RPROMPT='$PR_GREEN$(parse_git_branch)$PR_NO_COLOR' Note that only the prompt is zsh-specific. In Bash it would be your prompt plus "\$(parse_git_branch)". This might be slower (more calls to GIT, but that's an empirical question) but it won't be broken by changes in GIT (they don't change the plumbing). And that is very important for a good script moving forward. Days Later: Ugh, it turns out that diff-index HEAD is NOT the same as checking status against working directory clean. So will this mean another plumbing call? I surely don't have time/expertise to write my own porcelain....

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  • Create or override Rails Active Record macros (

    - by Jocelyn
    In a Rails app, Active Record creates created_at and updated_at columns thank to macros, (it seems to be also called "magic columns"). See Active Record Migrations I have some questions about that mecanism: Is it possible to override that to get a third column (e.g. deleted_at) ? Is it possible to create a new macro t.publishing that will create publish_up and publish_down columns, for example? And where to code that? Obviously, I know I can add those columns manually, but I wonder how to achieve it with macros. Working on Rails 4.

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  • jQuery - Animate function

    - by Arun Kumar
    I have a piece of code shown below: $(".tagArea li").mouseover(function(){ $(this).animate({ borderWidth: "2px" }, 1000 ); }); $(".tagArea li").mouseout(function () { $(this).animate({ borderWidth: "1px" }, 1000 ); }); When I try to hover it on a particular list item, it properly animates but doesn't stop doing just once. It keeps doing 2 or 3 times. How to avoid this, I 've tried many a times but no positive result occurs to me. Kindly help.

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  • function file_exists not working in php

    - by Rakesh R Nair
    I have been trying to find if a file_exist in the directory. If not i want to use a different image. But as i am using the file_exists function it always returns false. The code i used is while($r=mysql_fetch_row($res)) { if(!file_exists('http://localhost/dropbox/lib/admin/'.$r[5])) { $file='http://localhost/dropbox/lib/admin/images/noimage.gif'; } else $file='http://localhost/dropbox/lib/admin/'.$r[5];} But the function always return false even if the file exits. I checked that by using <img src="<?php echo 'http://localhost/dropbox/lib/admin/'.$r[5]; ?>" /> This displayed the image correctly. Please Someone Help Me

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  • Create directory using rake in windows

    - by intern
    We were trying to run fllowing code in rake file: directory "tmp" file "hello.tmp" => "tmp" do sh "echo 'Hello' >> 'tmp/hello.tmp'" end We have taken this code from http://jasonseifer.com/2010/04/06/rake-tutorial But, since we are working on windows commands like'sh','echo' wont work.. according to the explanation given for the above code, it should first create a directory 'tmp' and then create a file 'hello.tmp' which will have 'hello' as its text.. Firstly, how can we do this for windows? and Secondly, a file with extension '.tmp' sounds quite wierd.. what does 'hello.tmp' specifies? Does it simply mean that 'hello.tmp' is a text file in 'tmp' directory?

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  • C++ Function Template With Flexible Return Type

    - by Ignatius Reza
    Let's say that we have a function like so template <class T, class T2> T getMin(T a, T2 b) { if(a < b) return a; return b; } if we call the function like so int a, b; long c; a = getMin(b, c); if c is < a, then the value of c will be type casted to int. Is it possible to make the return type flexible so that it would return an int, or long, or any other type considered smaller by "<" without being type casted?

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  • To not iterate through function of Array object if it is added to Array prototype

    - by Rishat Muhametshin
    According to the way to add indexOf method to Array class in IE6, how do I now reject this method from iterating through any random array? For example: Array.prototype.indexOf = function(needle) { ... }; var array = [1, 2, 3]; for (var i in array) { document.write(i + ': ' + array[i]); } gives output 0: 1 1: 2 2: 3 indexOf: function ... How can I skip indexOf property and stop iterating on it without adding any code to where for(...) is called?

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  • Help with Jquery function

    - by Madhur Ahuja
    Ok, Here is my problem: I have this function in a third party javascript library defined as RedirectLink(a,b,c,d,e) where a,b,c,d,e are strings. I also have a link in my webSite which is again autogenerated (And I can't change it) <a href="javascript: RedirectLink("1", "2", "3" ,"4" ,"5")" id="mylink" > What I need to do is, read this anchor's (mylink) href and I need to call RedirectLink function such as javascript: RedirectLink("1", "2", "3" + param, "4" , "5"). where param will come from query string. The first part is easy, reading the href but how to alter the third parameter ?

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  • Codeigniter: simple form function

    - by Kevin Brown
    I'm stuck writing a simple form...I feel dumb. Here's my controller: function welcome_message(){ //Update welcome message $id = $this->session->userdata('id'); $profile['welcome_message'] = $this->input->post('welcome_message'); $this->db->update('be_user_profiles',$profile, array('user_id' => $id)); } And the html: <?php print form_open('home/welcome_message')?> <input type="checkbox" value="0" checked="false">Don't show me this again</input> <p> <input class="button submit" type="submit" class="close-box" value="Close" /> </p> <?php print form_close()?> Edit I simply need it to submit to a private function and return to the home page (page submitted from).

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