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  • How to access the members of this data in PHP?

    - by George Edison
    Okay. Now I give up. I have been playing with this for hours. I have a variable name $data. The variable contains these contents: (extracted by using var_export()) array ( 'headers' => array ( 'content-type' => 'multipart/alternative; boundary="_689e1a7d-7a0a-442a-bd6c-a1fb1dc2993e_"', ), 'ctype_parameters' => array ( 'boundary' => '_689e1a7d-7a0a-442a-bd6c-a1fb1dc2993e_', ), 'parts' => array ( 0 => stdClass::__set_state(array( 'headers' => array ( 'content-type' => 'text/plain; charset="iso-8859-1"', 'content-transfer-encoding' => 'quoted-printable', ), 'ctype_primary' => 'text', )), ), ) I removed some non-essential data. I want to access the headers value (on the second line above) - simple: $data->headers I want to access the headers value (on the fourteenth line after the stdClass:: stuff) - how? How can I possibly access the values within the stdClass::__set_state section? I tried var_export($data->parts); but all I get is NULL

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  • How cast in XML for aggregate functions

    - by renegm
    In SQL Server 2008. I need execute a query like that: DECLARE @x AS xml SET @x=N'<r><c>First Text</c></r><r><c>Other Text</c></r>' SELECT @x.query('fn:max(r/c)') But return nothing (apparently because convert xdt:untypedAtomic to numeric) How to "cast" r/c to varchar? Something like SELECT @x.query('fn:max(«CAST(r/c «AS varchar(20))»)') Edit: Using Nodes the function MAX is from T-SQL no fn:max function In this code: DECLARE @x xml; SET @x = ''; SELECT @x.query('fn:max((1, 2))'); SELECT @x.query('fn:max(("First Text", "Other Text"))'); both query return expected: 2 and "Other Text" fn:max can evaluate string expression ad hoc. But the first query dont work. How to force string arguments to fn:max?

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  • Callback function and function pointer trouble in C++ for a BST

    - by Brendon C.
    I have to create a binary search tree which is templated and can deal with any data types, including abstract data types like objects. Since it is unknown what types of data an object might have and which data is going to be compared, the client side must create a comparison function and also a print function (because also not sure which data has to be printed). I have edited some C code which I was directed to and tried to template, but I cannot figure out how to configure the client display function. I suspect variable 'tree_node' of class BinarySearchTree has to be passed in, but I am not sure how to do this. For this program I'm creating an integer binary search tree and reading data from a file. Any help on the code or the problem would be greatly appreciated :) Main.cpp #include "BinarySearchTreeTemplated.h" #include <iostream> #include <fstream> #include <string> using namespace std; /*Comparison function*/ int cmp_fn(void *data1, void *data2) { if (*((int*)data1) > *((int*)data2)) return 1; else if (*((int*)data1) < *((int*)data2)) return -1; else return 0; } static void displayNode() //<--------NEED HELP HERE { if (node) cout << " " << *((int)node->data) } int main() { ifstream infile("rinput.txt"); BinarySearchTree<int> tree; while (true) { int tmp1; infile >> tmp1; if (infile.eof()) break; tree.insertRoot(tmp1); } return 0; } BinarySearchTree.h (a bit too big to format here) http://pastebin.com/4kSVrPhm

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  • Using functions like formulas in Excel

    - by Arlen Beiler
    I am trying to use a formula to get a letter of the alphabet. Formula: =Keytable(RANDOM,ROW()) Function: Function KeyTable(seed As Long, position As Long) As String Dim i As Long Stop Dim calpha(1 To 26) As String Dim alpha(1 To 26) As String For i = 1 To 26 alpha(i) = Chr(i + UPPER_CASE - 1) Next i For i = 1 To 26 calpha(i) = alpha(seed Mod 27 - i) Next i Stop KeyTable = calpha(position) End Function Result: #Value! When I step through the function, it never gets to the second stop.

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  • Javascript storing properties and functions in variables

    - by richard
    Hello, I'm having trouble with my programming style and I hope to get some feedback here. I recently bought Javascript: The Good Parts and while I find this a big help, I'm still having trouble designing this application. Especially when it comes to writing function and methods. Example: I have a function that let's the user switches games in my app. This function updates game-specific information in the current view. var games = { active: Titanium.App.Properties.getString('active_game'), gameswitcher_positions: { 'Game 1': 0, 'Game 2': 1, 'Game 3': 2, 'Game 4': 3, 'Game 5': 4 }, change: function(game) { if (active_game !== game) { gameswitcher.children[this.gameswitcher_positions[this.active]].backgroundImage = gameswitcher.children[this.gameswitcher_positions[this.active]].backgroundImage.replace('_selected', ''); gameswitcher.children[this.gameswitcher_positions[game]].backgroundImage = gameswitcher.children[this.gameswitcher_positions[game]].backgroundImage.replace('.png', '_selected.png'); events.update(game); this.active = game; } }, init: function() { gameswitcher.children[this.gameswitcher_positions[this.active]].backgroundImage = gameswitcher.children[this.gameswitcher_positions[this.active]].backgroundImage.replace('.png', '_selected.png'); events.update(this.active); } }; gameswitcher is a container view which contains buttons to switch games. I am not satisfied with this approach but I cannot think of a better one. Should I place the gameswitcher_positions outside of the variable in a seperate variable instead of as a property? And what about the active game? Please give me feedback, what am I doing wrong?

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  • functions in F# .. why is it not compiling

    - by Tanmoy
    Hi, I have written two versions of code. The first one works as expected and print "Hi". the second one gives me error that "block following this let is unfinished" 1st version #light let samplefn() = let z = 2 let z = z * 2 printfn "hi" samplefn() 2nd version #light let samplefn() = let z = 2 let z = z * 2 samplefn() Only difference is the printfn is absent in the second version. I am using Visual Studio 2010 as my IDE. I am very new to F# but this error seems very strange to me. I guess I am missing some very important concept. Please explain. Edit: Also if I do it outside the function I get error even with the first version of code. #light let z = 2 let z = z * 2 printfn "Error: Duplicate definition of value z"

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  • what functions are called when passing value to function

    - by Tim
    In C++, if an object of a class is passed as a parameter into a function, the copy constructor of the class will be called. I was wondering if the object is of nonclass type, what function will be called? Similarly in C, what function is called when passing values or address of variables into a function? Thanks and regards!

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  • Returning multiple aggregate functions as rows

    - by SDLFunTimes
    I need some help formulating a select statement. I need to select the total quantity shipped for each part with a distinct color. So the result should be a row with the color name and the total. Here's my schema: create table s ( sno char(5) not null, sname char(20) not null, status smallint, city char(15), primary key (sno) ); create table p ( pno char(6) not null, pname char(20) not null, color char(6), weight smallint, city char(15), primary key (pno) ); create table sp ( sno char(5) not null, pno char(6) not null, qty integer not null, primary key (sno, pno) );

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  • Anonymous functions in C#

    - by Maxim Gershkovich
    The following syntax is valid VB.NET code Dim myCollection As New List(Of Stock) myCollection.Add(New Stock(Guid.NewGuid, "Item1")) myCollection.Add(New Stock(Guid.NewGuid, "Item2")) Dim res As List(Of Stock) = myCollection.FindAll(Function(stock As Stock) As Boolean If stock.Description = "Item2" Then Return True End If Return False End Function) How can I accomplish the same thing in C#? I have tried... myCollection.FindAll(bool delegate(Stock stock) { if (blah blah) { } }); But it appears I have somehow structured it incorrectly as I get the following error. "Error 1 Invalid expression term 'bool'"

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  • prevent using functions before initialization, constructors-like in C

    - by Hernán Eche
    This is the way I get to prevent funA,funB,funC, etc.. for being used before init #define INIT_KEY 0xC0DE //any number except 0, is ok static int initialized=0; int Init() { //many init task initialized=INIT_KEY; } int funA() { if (initialized!=INIT_KEY) return 1 //.. } int funB() { if (initialized!=INIT_KEY) return 1 //.. } int funC() { if (initialized!=INIT_KEY) return 1 //.. } The problem with this approach is that if some of those function is called within a loop so "if (initialized!=INIT_KEY)" is called again, and again, although it's not necessary. It's a good example of why constructors are useful haha, If it were an object I would be sure that when was created initialization was called, but in C, I don't know how to do it. Any other ideas are welcome!

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  • a question of javascript DOM functions in IE 6

    - by CunruiLi
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Test</title> </head> <body> <div id="test"> </div> <script type="text/javascript"> var check = function(){ alert(document.examsys); } var _form = document.createElement("form"); _form.name = "examsys"; _form.action="javascript:;" for(var i=0 ; i<5; i++){ _form.innerHTML += "<input type='radio' name='answer' value='ccc' />&nbsp;abc<br />"; } var submit = document.createElement("input"); submit.type = "image"; submit.src = "tijiao.gif"; submit.alt = "Submit"; if(submit.attachEvent){ submit.attachEvent("onclick",check); } else if(submit.addEventListener){ submit.addEventListener("click",check,false); } _form.appendChild(submit); document.getElementById("test").appendChild(_form); </script> </body> </html> why in IE6 the document.examsys returns "undefined".

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  • Question about variable definitions in functions.

    - by Kaan Tekelioglu
    Hi. #include <stdio.h> main() { int a; for(a=1; a<=4 && printf("%d ",a); a++) { int a; static int b=a; printf("%d ",(a++)-b); } getchar(); getchar(); } In this code, the printout is 1 0 2 1 3 2 4 3. I understand why the int a; part works differently then the int a which was defined outside the for function, and why static int b; is only defined once with the primary value of a ; but why does the (a++) part in printf affect proceeding values of a? Don't we redefine int a; each time the for function runs? Thanks in advance.

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  • Can I use memcpy in C++ to copy classes that have no pointers or virtual functions

    - by Shane MacLaughlin
    Say I have a class, something like the following; class MyClass { public: MyClass(); int a,b,c; double x,y,z; }; #define PageSize 1000000 MyClass Array1[PageSize],Array2[PageSize]; If my class has not pointers or virtual methods, is it safe to use the following? memcpy(Array1,Array2,PageSize*sizeof(MyClass)); The reason I ask, is that I'm dealing with very large collections of paged data, as decribed here, where performance is critical, and memcpy offers significant performance advantages over iterative assignment. I suspect it should be ok, as the 'this' pointer is an implicit parameter rather than anything stored, but are there any other hidden nasties I should be aware of?

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  • Evaluating and graphing functions in Matlab

    - by thiol3
    New to programming, I am trying to graph the following Gaussian function in Matlab (should graph in 3 dimensions) but am making some mistakes somewhere. What is wrong? sigma = 1 for i = 1:20 for j = 1:20 z(i,j) = (1/(2*pi*sigma^2))*exp(-(i^2+j^2)/(2*sigma^2)); end end surf(z)

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  • "'Objects' may not respond to 'functions'" warnings.

    - by Andrew
    Hello all, for the last couple of weeks I've finally gotten into Obj-C from regular C and have started my first app. I've watched tutorials and read through a book along with a lot of webpages, but I know I've only just begun. Anyway, for most of the night and this morning, I've been trying to get this code to work, and now that it will compile, I have a few warnings. I've searched and found similar problems with solutions, but still no dice. What I'm trying to do is put an array made from a txt document into the popup list in a combo box. AwesomeBoxList.h: #import <Cocoa/Cocoa.h> @interface AwesomeBoxList : NSObject { IBOutlet NSComboBox *ComboBoz; } -(NSArray *) getStringzFromTxtz; - (void) awesomeBoxList; @end AwesomeBoxList.m: #import "AwesomeBoxList.h" @implementation AwesomeBoxList -(NSArray *)getStringzFromTxtz { ... return combind; } - (void) awesomeBoxList { [ComboBoz setUsesDataSource:YES]; [ComboBoz setDataSource: [ComboBoz getStringzFromTxtz]: //'NSComboBox' may not respond to 'getStringzFromTxtz' [ComboBoz comboBox:(NSComboBox *)ComboBoz objectValueForItemAtIndex: [ComboBoz numberOfItemsInComboBox:(NSComboBox *)ComboBoz]]]; /*'NSComboBox' may not respond to '-numberOfItemsInComboBox:' 'NSComboBox' may not respond to '-comboBox:objectValueForItemAtIndex:' 'NSComboBox' may not respond to '-setDataSource:' */ } @end So, with all of these errors and my still shallow knowledge of Obj-C, I must be making some sort of n00b mistake. Thanks for the help.

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  • Jquery Dom and functions in html body

    - by slick
    I have before my closing body tag here i have the usual $(function() { function test(){ alert("test"); } }); in my html i have input tags I get an error of that test is undefined. I am trying to make IE7 call function onchange I had a whole solution working but since IE7 does not like .change() i am going to put onchange attributes within the inputs but now i have this issue. Any idea how I can solve this?

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  • Does JSLint parse DOM functions?

    - by Paul
    I tried to use the parse() function of JSLint to parse three pieces of JavaScript code: function(b, c){var a = b + c; return a; } window.addEventListener('click', click_hanlder, true); document.documentElement.innerHTML; Here's the code, which is copied and pasted from the JSLint self-parse example: ` try { parse = make_parse(); var source = "something to parse";//replaced by the code above tree = parse(source); if (tree) { document.write(JSON.stringify(tree, ['key', 'name', 'message', 'value', 'arity', 'first', 'second', 'third', 'fourth'], 4)); } } catch (e) { document.write(JSON.stringify(e, ['name', 'message', 'from', 'to', 'key', 'value', 'arity', 'first', 'second', 'third', 'fourth'], 4)); } ` The output: returns a correct tree. returns a tree with only one node of "window". crashes the browser. I'm wondering whether JSLint doesn't support DOM function.

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  • how to change php functions send result to jquery ajax

    - by OpenCode
    I have many codes for user notifications, it do many mysql works, so it needs waiting times. jquery ajax works for php files. how can i use jquery for send php result to web page? current code : <? echo db_cache("main_top_naver_cache", 300, "naver_popular('naver_popular', 4)"))?> wanted code : but it shows errors... <div id='a'> <div id='b'> <script type="text/javascript"> $("#test1").html( " <? echo htmlspecialchars(db_cache("main_top_naver_cache", 300, "naver_popular('naver_popular', 4)"))?> " ); </script> IE debuger shows error ... SCRIPT1015:... <script type="text/javascript"> $("#test1").html( " &lt;style&gt; /* http://html.nhncorp.com/uio_factory/ui_pattern/list/3 */ .section_ol3{position:relative;border:1px solid #ddd;background:#fff;font-size:12px;font-family:Tahoma, Geneva, sans-serif;line-height:normal;*zoom:1} .section_ol3 a{color:#666;text-decoration:none} .section_ol3 a:hover, .section_ol3 a:active, .section_ol3 a:focus{text-decoration:underline} .section_ol3 em{font-style:normal} .section_ol3 h2{margin:0;padding:10px 0 8px 13px;border-bottom:1px solid #ddd;font-size:12px;color:#333} .section_ol3 h2 em{color:#cf3292} .section_ol3 ol{margin:13px;padding:0;list-style:none} .section_ol3 li{position:relative;margin:0 0 10px 0;*zoom:1} .section_ol3 li:after{display:block;clear:both;content:&quot;&quot;} .section_ol3 li .ranking{display:inline-block;width:14px;height:11px;margin:0 5px 0 0;border-top:1px solid #fff;border-bottom:1px solid #d1d1d1;background:#d1d1d1;text-align:center;vertical-align:top;font:bold 10px Tahoma;color:#fff} .section_ol3 li.best .ranking{border-bottom:1px solid #6e87a5;background:#6e87a5} .section_ol3 li.best a{color:#7189a7} .section_ol3 li .num{position:absolute;top:0;right:0;font-size:11px;color:#a8a8a8;white-space:nowrap} .section_ol3 li.best .num{font-weight:bold;color:#7189a7} .section_ol3 .more{position:absolute;top:10px;right:13px;font:11px Dotum, ??;text-decoration:none !important} .section_ol3 .more span{margin:0 2px 0 0;font-weight:bold;font-size:16px;color:#d76ea9;vertical-align:middle} &lt;/style&gt; &lt;div class=&quot;section_ol3&quot;&gt; &lt;ol style='text-align:left;'&gt; &lt;li class='best'&gt;&lt;span class='ranking'&gt;1&lt;/span&gt;&lt;a href='http://search.naver.com/search.naver?where=nexearch&amp;query=%B9%AB%C7%D1%B5%B5%C0%FC&amp;sm=top_lve' onfocus='this.blur()' title='????' target=new&gt;????&lt;/a&gt;&lt;span class='num'&gt;+42&lt;/span&gt;&lt;/li&gt;&lt;li class='best'&gt;&lt;span class='ranking'&gt;2&lt;/span&gt;&lt;a href='http://search.naver.com/search.naver?where=nexearch&amp;query=%B1%E8%C0%E7%BF%AC&amp;sm=top_lve' onfocus='this.blur()' title='???' target=new&gt;???&lt;/a&gt;&lt;span class='num'&gt;+123&lt;/span&gt;&lt;/li&gt;&lt;li class='best'&gt;&lt;span class='ranking'&gt;3&lt;/span&gt;&lt;a href='http://search.naver.com/search.naver?where=nexearch&amp;query=%C0%CC%C7%CF%C0%CC&amp;sm=top_lve' onfocus='this.blur()' title='???' target=new&gt;???&lt;/a&gt;&lt;span class='num'&gt;+90&lt;/span&gt;&lt;/li&gt;&lt;li &gt;&lt;span class='ranking'&gt;4&lt;/span&gt;&lt;a href='http://search.naver.com/search.naver?where=nexearch&amp;query=%BA%D2%C8%C4%C0%C7%B8%ED%B0%EE2&amp;sm=top_lve' onfocus='this.blur()' title='?????2' target=new&gt;?????2&lt;/a&gt;&lt;span class='num'&gt;+87&lt;/span&gt;&lt;/li&gt; &lt;/ol&gt; </div> " );

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  • Calling different functions depending on the template parameter c++

    - by Noman Javed
    I want to have something like that class A { public: Array& operator()() { . . . } }; class B { public: Element& operator[](int i) { ... } }; template<class T> class execute { public: output_type = operator()(T& t) { if(T == A) Array out = T()(); else { Array res; for(int i=0 ; i < length; ++i) a[i] = t[i]; } } }; There are two issues here 1. Meta-function replacing if-else in the execute operator() 2. Return type of execute operator() Thanks in anticipation Noman

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  • Initializing static pointer in templated class.

    - by Anthony
    This is difficult for me to formulate in a Google query (at least one that gives me what I'm looking for) so I've had some trouble finding an answer. I'm sure I'm not the first to ask though. Consider a class like so: template < class T > class MyClass { private: static T staticObject; static T * staticPointerObject; }; ... template < class T > T MyClass<T>::staticObject; // <-- works ... template < class T > T * MyClass<T>::staticPointerObject = NULL; // <-- cannot find symbol staticPointerObject. I am having trouble figuring out why I cannot successfully create that pointer object. Edit: The above code is all specified in the header, and the issue I mentioned is an error in the link step, so it is not finding the specific symbol.

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  • Difference in calling redefined functions in F# and Clojure

    - by Michiel Borkent
    In F#: > let f x = x + 2;; val f : int -> int > let g x = f x;; val g : int -> int > g 10;; val it : int = 12 > let f x = x + 3;; val f : int -> int > g 10;; val it : int = 12 In Clojure: (defn f [x] (+ x 2)) (defn g [x] (f x)) (g 10) ;; => 12 (defn f [x] (+ x 3)) (g 10) ;; => 13 Note that in Clojure the most recent version of f gets called in the last line. In F# however still the old version of f is called. Why is this?

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