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• Sql Query to get total rows and total rows matching specific condition

  - by mrNepal

  OK, Here is what my table looks like ------------------------------------------------ id type ----------------------------------------------- 1 a 2 b 3 a 4 c 5 c 7 a 8 a ------------------------------------------------ Now, I need a query that can give me this output... ----------------------------------------------------------------- count(*) | count(type=a) | count(type=b) | count(type=c) ----------------------------------------------------------------- 8 4 1 3 ------------------------------------------------------------------ I only know to get the total set using count(*), but how to do the remaining

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• clear all array list data

  - by lolalola

  Hi, Why don't clear all Array list data? Console.WriteLine("Before cleaning:" + Convert.ToString(ID.Count)); //ID.Count = 20 for (int i = 0; i < ID.Count; i++) { ID.RemoveAt(i); } Console.WriteLine("After cleaning:" + Convert.ToString(ID.Count)); //ID.Count = 10 From where 10 data? Maybe there is another special function, which deletes everything?

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• Bash Shell Scripting Errors: ./myDemo: 56: Syntax error: Unterminated quoted string [EDITED]

  - by ???

  Could someone take a look at this code and find out what's wrong with it? #!/bin/sh while : do echo " Select one of the following options:" echo " d or D) Display today's date and time" echo " l or L) List the contents of the present working directory" echo " w or W) See who is logged in" echo " p or P) Print the present working directory" echo " a or A) List the contents of a specified directory" echo " b or B) Create a backup copy of an ordinary file" echo " q or Q) Quit this program" echo " Enter your option and hit <Enter>: \c" read option case "$option" in d|D) date ;; l|L) ls $PWD ;; w|w) who ;; p|P) pwd ;; a|A) echo "Please specify the directory and hit <Enter>: \c" read directory if [ "$directory = "q" -o "Q" ] then exit 0 fi while [ ! -d "$directory" ] do echo "Usage: "$directory" must be a directory." echo "Re-enter the directory and hit <Enter>: \c" read directory if [ "$directory" = "q" -o "Q" ] then exit 0 fi done printf ls "$directory" ;; b|B) echo "Please specify the ordinary file for backup and hit <Enter>: \c" read file if [ "$file" = "q" -o "Q" ] then exit 0 fi while [ ! -f "$file" ] do echo "Usage: \"$file\" must be an ordinary file." echo "Re-enter the ordinary file for backup and hit <Enter>: \c" read file if [ "$file" = "q" -o "Q" ] then exit 0 fi done cp "$file" "$file.bkup" ;; q|Q) exit 0 ;; esac echo done exit 0 There are some syntax errors that I can't figure out. However I should note that on this unix system echo -e doesn't work (don't ask me why I don't know and I don't have any sort of permissions to change it and even if I wouldn't be allowed to) Bash Shell Scripting Error: "./myDemo ./myDemo: line 62: syntax error near unexpected token done' ./myDemo: line 62: " [Edited] EDIT: I fixed the while statement error, however now when I run the script some things still aren't working correctly. It seems that in the b|B) switch statement cp $file $file.bkup doesn't actually copy the file to file.bkup ? In the a|A) switch statement ls "$directory" doesn't print the directory listing for the user to see ? #!/bin/bash while $TRUE do echo " Select one of the following options:" echo " d or D) Display today's date and time" echo " l or L) List the contents of the present working directory" echo " w or W) See who is logged in" echo " p or P) Print the present working directory" echo " a or A) List the contents of a specified directory" echo " b or B) Create a backup copy of an ordinary file" echo " q or Q) Quit this program" echo " Enter your option and hit <Enter>: \c" read option case "$option" in d|D) date ;; l|L) ls pwd ;; w|w) who ;; p|P) pwd ;; a|A) echo "Please specify the directory and hit <Enter>: \c" read directory if [ ! -d "$directory" ] then while [ ! -d "$directory" ] do echo "Usage: "$directory" must be a directory." echo "Specify the directory and hit <Enter>: \c" read directory if [ "$directory" = "q" -o "Q" ] then exit 0 elif [ -d "$directory" ] then ls "$directory" else continue fi done fi ;; b|B) echo "Specify the ordinary file for backup and hit <Enter>: \c" read file if [ ! -f "$file" ] then while [ ! -f "$file" ] do echo "Usage: "$file" must be an ordinary file." echo "Specify the ordinary file for backup and hit <Enter>: \c" read file if [ "$file" = "q" -o "Q" ] then exit 0 elif [ -f "$file" ] then cp $file $file.bkup fi done fi ;; q|Q) exit 0 ;; esac echo done exit 0 Another thing... is there an editor that I can use to auto-parse code? I.e something similar to NetBeans?

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• Why is this undefined behaviour?

  - by xryl669

  Here's the sample code: X * makeX(int index) { return new X(index); } struct Tmp { mutable int count; Tmp() : count(0) {} const X ** getX() const { static const X* x[] = { makeX(count++), makeX(count++) }; return x; } }; This reports Undefined Behaviour on CLang version 500 in the static array construction. For sake of simplication for this post, the count is not static, but it does not change anything.

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• How can i count the number of unique instances of IP address in the following string in ruby

  - by kamal

  "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" "10.1.3.1" nil "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" "10.1.3.4" nil "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" "10.1.3.10" nil "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" "10.1.3.11" nil "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" "10.1.3.12" nil "10.1.3.30" "10.1.3.30" nil "10.1.3.38" "10.1.3.38" "10.1.3.38" "10.1.3.38" "10.1.3.38" nil "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" "10.1.3.55" nil "10.1.3.60" "10.1.3.60" "10.1.3.60" "10.1.3.60" "10.1.3.60" "10.1.3.60" "10.1.3.60" nil "10.1.3.66" "10.1.3.66" "10.1.3.66" "10.1.3.66" "10.1.3.66" "10.1.3.66" "10.1.3.66" nil "10.1.3.101" "10.1.3.101" nil "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" "10.1.3.102" nil "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" "10.1.3.103" nil "10.1.3.104" "10.1.3.104" nil "10.1.3.106" "10.1.3.106" nil "10.1.3.107" "10.1.3.107" "10.1.3.107" "10.1.3.107" "10.1.3.107" "10.1.3.107" "10.1.3.107" nil "10.1.3.108" "10.1.3.108" "10.1.3.108" "10.1.3.108" "10.1.3.108" "10.1.3.108" nil "10.1.3.110" "10.1.3.110" "10.1.3.110" "10.1.3.110" "10.1.3.110" nil the above string is stdout of: #!/usr/bin/ruby require "rubygems" require "fastercsv" scannedIPs = Hash.new(0) count = 0 FCSV.foreach("HOUND-1.csv", :headers => true, :skip_blanks => false) do |row| text = row[1] p text end

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• Why am I getting 'Argument count mismatch' error here?

  - by Leon

  I have a Document class, Intro class and Nav class. The Intro class runs first, then sends a custom dispatch event to run the Nav class, but I'm getting this error: removed Intro ArgumentError: Error #1063: Argument count mismatch on com.secrettowriting.StanPlayer.ui::Navigation/addNav(). Expected 0, got 1. at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at com.secrettowriting.StanPlayer.display::Intro/removeIntro() at flash.utils::Timer/_timerDispatch() at flash.utils::Timer/tick() The addNav function in the Navigation class should expect 0 arguments/variables and I'm not sending any arguments/variables to it, which is why I'm confused as to why it's saying I'm getting 1. My Document Class: public function HomePlayer():void { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event = null):void { removeEventListener(Event.ADDED_TO_STAGE, init); stage.scaleMode = StageScaleMode.NO_SCALE; stage.align = StageAlign.TOP_LEFT; // Use when Live //videoURL = this.loaderInfo.parameters.theVIDEO; // Get the Video URL from HTML // Remove when video testing ready videoURL = "videos/WhatDifferentiatesUs.flv"; drawNav(); drawIntro(); } private function drawIntro():void { intro = new Intro(); intro.drawIntro(); intro.addEventListener("onComplete", nav.addNav); stage.addChild(intro); } private function drawNav():void { nav = new Navigation(); nav.drawNav(); stage.addChild(nav); } Intro Class: Public function Intro():void { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event = null):void { removeEventListener(Event.ADDED_TO_STAGE, init); } public function drawIntro():void { introMov = new IntroMov(); introMov.alpha = 0; addChild(introMov); TweenLite.to(introMov, 3, {alpha:1}); // Timer introFader = new Timer(INTRO_DELAY); introFader.addEventListener(TimerEvent.TIMER, fadeIntro); introFader.start(); introRemover = new Timer(INTRO_DELAY); introRemover.addEventListener(TimerEvent.TIMER, removeIntro); } private function fadeIntro(e:TimerEvent):void { if (i < 30){ i++ } else if (i == 30){ TweenLite.to(introMov, 1.5, {alpha:0}); introFader.removeEventListener(TimerEvent.TIMER, fadeIntro); introRemover.start(); } } private function removeIntro(e:TimerEvent):void { if (n < 10){ n++ } else if (n == 10){ introRemover.removeEventListener(TimerEvent.TIMER, removeIntro); removeChild(introMov); trace("removed Intro"); dispatchEvent (new CustomEvent(CustomEvent.COMPLETE, {})); // ? Intro to Navigation } } Navigation Class functions: public function drawNav():void { weAreA = new WeAreA(); weAreA.alpha = 0; weAreA.x = 20; weAreA.y = 35; introText = new IntroText(); introText.alpha = 0; introText.x = 20; introText.y = 124; chooseAVideo = new ChooseAVideo(); chooseAVideo.alpha = 0; chooseAVideo.x = 20; chooseAVideo.y = 336; } public function addNav():void { addChild(weAreA); addChild(introText); addChild(chooseAVideo); TweenLite.to(weAreA, 2, {alpha:1}); TweenLite.to(introText, 3, {alpha:1}); TweenLite.to(introText, 3, {alpha:1}); }

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• Iteration, or copying in XSL, based on a count. How do I do it?

  - by LOlliffe

  I'm trying to create an inventory list (tab-delimited text, for the output) from XML data. The catch is, I need to take the line that I created, and list it multiple times (iterate ???), based on a number found in the XML. So, from the XML below: <?xml version="1.0" encoding="UTF-8"?> <library> <aisle label="AA"> <row>bb</row> <shelf>a</shelf> <books>4</books> </aisle> <aisle label="BB"> <row>cc</row> <shelf>d</shelf> <books>3</books> </aisle> </library> I need to take the value found in "books", and then copy the text line that number of times. The result looking like this: Aisle Row Shelf Titles AA bb a AA bb a AA bb a AA bb a BB cc d BB cc d BB cc d So that the inventory taker, can then write in the titles found on each shelf. I have the basic structure of my XSL, but I'm not sure how to do the "iteration" portion. <?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="xs" xmlns:xd="http://www.oxygenxml.com/ns/doc/xsl" version="2.0"> <xsl:output omit-xml-declaration="yes"/> <xsl:variable name="tab" select="'&#09;'"/> <xsl:variable name="newline" select="'&#10;'"/> <xsl:template match="/"> <!-- Start Spreadsheet header --> <xsl:text>Aisle</xsl:text> <xsl:value-of select="$tab"/> <xsl:text>Row</xsl:text> <xsl:value-of select="$tab"/> <xsl:text>Shelf</xsl:text> <xsl:value-of select="$tab"/> <xsl:text>Titles</xsl:text> <xsl:value-of select="$newline"/> <!-- End spreadsheet header --> <!-- Start entering values from XML --> <xsl:for-each select="library/aisle"> <xsl:value-of select="@label"/> <xsl:value-of select="$tab"/> <xsl:value-of select="row"/> <xsl:value-of select="$tab"/> <xsl:value-of select="shelf"/> <xsl:value-of select="$tab"/> <xsl:value-of select="$tab"/> <xsl:value-of select="$newline"/> </xsl:for-each> <!-- End of values from XML --> <!-- Iteration of the above needed, based on count value in "books" --> </xsl:template> </xsl:stylesheet> Any help would be greatly appreciated. For starters, is "iteration" the right term to be using for this? Thanks!

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• Memory Leaks - Objective-C

  - by reising1

  Can anyone help point out memory leaks? I'm getting a bunch within this method and I'm not sure exactly how to fix it. - (NSMutableArray *)getTop5AndOtherKeysAndValuesFromDictionary:(NSMutableDictionary *)dict { NSLog(@"get top 5"); int sumOfAllValues = 0; NSMutableArray *arr = [[[NSMutableArray alloc] init] retain]; for(NSString *key in dict){ NSString *value = [[dict objectForKey:key] retain]; [arr addObject:value]; sumOfAllValues += [value intValue]; } //sort values NSArray *sorted = [[arr sortedArrayUsingFunction:sort context:NULL] retain]; [arr release]; //top 5 values int sumOfTop5 = 0; NSMutableArray *top5 = [[[NSMutableArray alloc] init] retain]; for(int i = 0; i < 5; i++) { int proposedIndex = [sorted count] - 1 - i; if(proposedIndex >= 0) { [top5 addObject:[sorted objectAtIndex:([sorted count] - i - 1)]]; sumOfTop5 += [[sorted objectAtIndex:([sorted count] - i - 1)] intValue]; } } [sorted release]; //copy of all keys NSMutableArray *copyOfKeys = [[[NSMutableArray alloc] init] retain]; for(NSString *key in dict) { [copyOfKeys addObject:key]; } //copy of top 5 values NSMutableArray *copyOfTop5 = [[[NSMutableArray alloc] init] retain]; for(int i = 0; i < [top5 count]; i++) { [copyOfTop5 addObject:[top5 objectAtIndex:i]]; } //get keys with top 5 values NSMutableArray *outputKeys = [[[NSMutableArray alloc] init] retain]; for(int i = 0; i < [top5 count]; i++) { NSString *targetValue = [top5 objectAtIndex:i]; for(int j = 0; j < [copyOfKeys count]; j++) { NSString *key = [copyOfKeys objectAtIndex:j]; NSString *val = [dict objectForKey:key]; if([val isEqualToString:targetValue]) { [outputKeys addObject:key]; [copyOfKeys removeObjectAtIndex:j]; break; } } } [outputKeys addObject:@"Other"]; [top5 addObject:[[NSString stringWithFormat:@"%d",(sumOfAllValues - sumOfTop5)] retain]]; NSMutableArray *output = [[NSMutableArray alloc] init]; [output addObject:outputKeys]; [output addObject:top5]; NSMutableArray *percents = [[NSMutableArray alloc] init]; int sum = sumOfAllValues; float leftOverSum = sum * 1.0f; int count = [top5 count]; float val1, val2, val3, val4, val5; if(count >= 1) val1 = ([[top5 objectAtIndex:0] intValue] * 1.0f)/sum; else val1 = 0.0f; if(count >=2) val2 = ([[top5 objectAtIndex:1] intValue] * 1.0f)/sum; else val2 = 0.0f; if(count >= 3) val3 = ([[top5 objectAtIndex:2] intValue] * 1.0f)/sum; else val3 = 0.0f; if(count >= 4) val4 = ([[top5 objectAtIndex:3] intValue] * 1.0f)/sum; else val4 = 0.0f; if(count >=5) val5 = ([[top5 objectAtIndex:4] intValue] * 1.0f)/sum; else val5 = 0.0f; if(val1 >= .00001f) { NSMutableArray *a1 = [[NSMutableArray alloc] init]; [a1 addObject:[outputKeys objectAtIndex:0]]; [a1 addObject:[top5 objectAtIndex:0]]; [a1 addObject:[NSString stringWithFormat:@"%.01f",(val1*100)]]; [percents addObject:a1]; leftOverSum -= ([[top5 objectAtIndex:0] intValue] * 1.0f); } if(val2 >= .00001f) { NSMutableArray *a2 = [[NSMutableArray alloc] init]; [a2 addObject:[outputKeys objectAtIndex:1]]; [a2 addObject:[top5 objectAtIndex:1]]; [a2 addObject:[NSString stringWithFormat:@"%.01f",(val2*100)]]; [percents addObject:a2]; leftOverSum -= ([[top5 objectAtIndex:1] intValue] * 1.0f); } if(val3 >= .00001f) { NSMutableArray *a3 = [[NSMutableArray alloc] init]; [a3 addObject:[outputKeys objectAtIndex:2]]; [a3 addObject:[top5 objectAtIndex:2]]; [a3 addObject:[NSString stringWithFormat:@"%.01f",(val3*100)]]; [percents addObject:a3]; leftOverSum -= ([[top5 objectAtIndex:2] intValue] * 1.0f); } if(val4 >= .00001f) { NSMutableArray *a4 = [[NSMutableArray alloc] init]; [a4 addObject:[outputKeys objectAtIndex:3]]; [a4 addObject:[top5 objectAtIndex:3]]; [a4 addObject:[NSString stringWithFormat:@"%.01f",(val4*100)]]; [percents addObject:a4]; leftOverSum -= ([[top5 objectAtIndex:3] intValue] * 1.0f); } if(val5 >= .00001f) { NSMutableArray *a5 = [[NSMutableArray alloc] init]; [a5 addObject:[outputKeys objectAtIndex:4]]; [a5 addObject:[top5 objectAtIndex:4]]; [a5 addObject:[NSString stringWithFormat:@"%.01f",(val5*100)]]; [percents addObject:a5]; leftOverSum -= ([[top5 objectAtIndex:4] intValue] * 1.0f); } float valOther = (leftOverSum/sum); if(valOther >= .00001f) { NSMutableArray *a6 = [[NSMutableArray alloc] init]; [a6 addObject:[outputKeys objectAtIndex:5]]; [a6 addObject:[top5 objectAtIndex:5]]; [a6 addObject:[NSString stringWithFormat:@"%.01f",(valOther*100)]]; [percents addObject:a6]; } [output addObject:percents]; NSLog(@"mu - a"); //[arr release]; NSLog(@"mu - b"); //[copyOfKeys release]; NSLog(@"mu - c"); //[copyOfTop5 release]; NSLog(@"mu - c"); //[outputKeys release]; //[top5 release]; //[percents release]; return output; }

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• Java style FOR loop in a clojure interpeter ?

  - by Kevin

  I have a basic interpreter in clojure. Now i need to implement for (initialisation; finish-test; loop-update) { statements } inside my interpreter. I will attach my interpreter code I got so far. Any help is appreciated. Interpreter (declare interpret make-env) ;; (def do-trace false) ;; ;; simple utilities (def third ; return third item in a list (fn [a-list] (second (rest a-list)))) (def fourth ; return fourth item in a list (fn [a-list] (third (rest a-list)))) (def run ; make it easy to test the interpreter (fn [e] (println "Processing: " e) (println "=> " (interpret e (make-env))))) ;; for the environment (def make-env (fn [] '())) (def add-var (fn [env var val] (cons (list var val) env))) (def lookup-var (fn [env var] (cond (empty? env) 'error (= (first (first env)) var) (second (first env)) :else (lookup-var (rest env) var)))) ;; -- define numbers (def is-number? (fn [expn] (number? expn))) (def interpret-number (fn [expn env] expn)) ;; -- define symbols (def is-symbol? (fn [expn] (symbol? expn))) (def interpret-symbol (fn [expn env] (lookup-var env expn))) ;; -- define boolean (def is-boolean? (fn [expn] (or (= expn 'true) (= expn 'false)))) (def interpret-boolean (fn [expn env] expn)) ;; -- define functions (def is-function? (fn [expn] (and (list? expn) (= 3 (count expn)) (= 'lambda (first expn))))) (def interpret-function (fn [expn env] expn)) ;; -- define addition (def is-plus? (fn [expn] (and (list? expn) (= 3 (count expn)) (= '+ (first expn))))) (def interpret-plus (fn [expn env] (+ (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define subtraction (def is-minus? (fn [expn] (and (list? expn) (= 3 (count expn)) (= '- (first expn))))) (def interpret-minus (fn [expn env] (- (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define multiplication (def is-times? (fn [expn] (and (list? expn) (= 3 (count expn)) (= '* (first expn))))) (def interpret-times (fn [expn env] (* (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define division (def is-divides? (fn [expn] (and (list? expn) (= 3 (count expn)) (= '/ (first expn))))) (def interpret-divides (fn [expn env] (/ (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define equals test (def is-equals? (fn [expn] (and (list? expn) (= 3 (count expn)) (= '= (first expn))))) (def interpret-equals (fn [expn env] (= (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define greater-than test (def is-greater-than? (fn [expn] (and (list? expn) (= 3 (count expn)) (= '> (first expn))))) (def interpret-greater-than (fn [expn env] (> (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define not (def is-not? (fn [expn] (and (list? expn) (= 2 (count expn)) (= 'not (first expn))))) (def interpret-not (fn [expn env] (not (interpret (second expn) env)))) ;; -- define or (def is-or? (fn [expn] (and (list? expn) (= 3 (count expn)) (= 'or (first expn))))) (def interpret-or (fn [expn env] (or (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define and (def is-and? (fn [expn] (and (list? expn) (= 3 (count expn)) (= 'and (first expn))))) (def interpret-and (fn [expn env] (and (interpret (second expn) env) (interpret (third expn) env)))) ;; -- define with (def is-with? (fn [expn] (and (list? expn) (= 3 (count expn)) (= 'with (first expn))))) (def interpret-with (fn [expn env] (interpret (third expn) (add-var env (first (second expn)) (interpret (second (second expn)) env))))) ;; -- define if (def is-if? (fn [expn] (and (list? expn) (= 4 (count expn)) (= 'if (first expn))))) (def interpret-if (fn [expn env] (cond (interpret (second expn) env) (interpret (third expn) env) :else (interpret (fourth expn) env)))) ;; -- define function-application (def is-function-application? (fn [expn env] (and (list? expn) (= 2 (count expn)) (is-function? (interpret (first expn) env))))) (def interpret-function-application (fn [expn env] (let [function (interpret (first expn) env)] (interpret (third function) (add-var env (first (second function)) (interpret (second expn) env)))))) ;; the interpreter itself (def interpret (fn [expn env] (cond do-trace (println "Interpret is processing: " expn)) (cond ; basic values (is-number? expn) (interpret-number expn env) (is-symbol? expn) (interpret-symbol expn env) (is-boolean? expn) (interpret-boolean expn env) (is-function? expn) (interpret-function expn env) ; built-in functions (is-plus? expn) (interpret-plus expn env) (is-minus? expn) (interpret-minus expn env) (is-times? expn) (interpret-times expn env) (is-divides? expn) (interpret-divides expn env) (is-equals? expn) (interpret-equals expn env) (is-greater-than? expn) (interpret-greater-than expn env) (is-not? expn) (interpret-not expn env) (is-or? expn) (interpret-or expn env) (is-and? expn) (interpret-and expn env) ; special syntax (is-with? expn) (interpret-with expn env) (is-if? expn) (interpret-if expn env) ; functions (is-function-application? expn env) (interpret-function-application expn env) :else 'error)))

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• PHP Game weapon accuracy

  - by noko

  I'm trying to come up with a way for players to fire their weapons and only hit for a certain percentage. For example, one gun can only hit 70% of the time while another only hits 34% of the time. So far all I could come up with is weighted arrays. Attempt 1: private function weighted_random(&$weight) { $weights = array(($weight/100), (100-$weight)/100); $r = mt_rand(1,1000); $offset = 0; foreach($weights as $k => $w) { $offset += $w*1000; if($r <= $offset) return $k; } } Attempt 2: private function weapon_fired(&$weight) { $hit = array(); for($i = 0; $i < $weight; $i++) $hit[] = true; for($i = $weight; $i < 100; $i++) $hit[] = false; shuffle($hit); return $hit[mt_rand(0,100)]; } It doesn't seem that the players are hitting the correct percentages but I'm not really sure why. Any ideas or suggestions? Is anything glaringly wrong with these? Thanks

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• ASP.NET - Google Chrome caching DropDownList selections

  - by Fake

  I'm experiencing what seems to be a caching issue with Google Chrome and Safari on my cart page. In the cart there are 2 dropdown lists. When you hit the checkout button after changing the values in the dropdown lists, it commits what's selected in the lists to the database. It's a little bit hard to explain the unexpected behavior so I will try to write it out step by step with an illustration of my problem. Lets say the first dropdown list has the values of: VALUE1 VALUE2 VALUE3 And the second dropdown list has the values of: DUMBO1 DUMBO2 DUMBO3 I add an item to my cart. Screen Says: VALUE1, DUMBO1 Database Says: VALUE1, DUMBO1 I hit Checkout. Database says: VALUE1, DUMBO1 (I can't see the dropdown lists after I hit checkout because i'm not at the cart page) I hit the back button. Screen Says: VALUE1, DUMBO1 Database Says: VALUE1, DUMBO1 I drop down the VALUE1 combo and select VALUE2, VALUE2 is selected momentarily and then the site posts back and VALUE1 is re-selected in the drop down list (from being reloaded from the DB) MOMENTARILY Screen Says: VALUE2, DUMBO1 Database Says: VALUE1, DUMBO1 THEN AFTER POSTBACK FROM DROPDOWNLIST_SELECTIONCHANGED EVENT Screen Says: VALUE1, DUMBO1 Database Says: VALUE1, DUMBO1 Hit Checkout. Database Says VALUE1 ,DUMBO1 (I can't see the dropdown lists after I hit checkout because i'm not at the cart page) Go back. Screen Says: VALUE2, DUMBO1 Database Says: VALUE1, DUMBO1 So it appears that it's remembering my selection of VALUE2 even though it jumped back to VALUE1 before I checked out. It seems to be a caching problem, however I've got some no-cache code to prevent caching of that page that works great in firefox and internet explorer but seems to be failing in Chrome and Safari. I'm basically returning in the headers for the cart page: no-cache, no-store, and must-revalidate to attempt to prevent caching, but based on this scenario it seems to be caching the page anyway and not reloading it when I hit the back button. I am open to any solutions or suggestions at this point. Thanks!

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• OpenGL, draw two polygons in the same time (by mouse clicks)

  - by YoungSalafi

  im trying to draw 2 polygons at the same time depending on user input from the opengl screen... so i made 2 arrays which each one of them will carry the vertices of each polygon ... i think my logic is right but the program still prints only polygon and delete the old polygon if you draw a polygon again . and its acting weird too please check the code yourself here it is : P.S dont mind the delete function right now.. i know it missing something. #include <windows.h> #include <gl/gl.h> #include <gl/glut.h> void Draw(); void Set_Transformations(); void Initialize(int argc, char *argv[]); void OnKeyPress(unsigned char key, int x, int y); void DeleteVer(); void MouseClick(int bin, int state , int x , int y); void GetOGLPos(int x, int y,float* arrY,float* arrX); void DrawPolygon(float* arrX,float* arrY); float xPos[20]; float yPos[20]; float xPos2[20]; float yPos2[20]; float fx = 0,fy = 0; float size = 10; int count = 0; bool done = false; bool flag = true; void Initialize(int argc, char *argv[]) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_RGBA); glutInitWindowPosition(100, 100); glutInitWindowSize(600, 600); glutCreateWindow("OpenGL Lab1"); Set_Transformations(); glutDisplayFunc(Draw); glutMouseFunc(MouseClick); glutKeyboardFunc(OnKeyPress); glutMainLoop(); } void Set_Transformations() { glClearColor(1, 1, 1, 1); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-200, 200, -200, 200); } void OnKeyPress(unsigned char key, int x, int y) { if (key == 27) exit(0); switch(key) { case 13: //enter key it will draw done = true; glutPostRedisplay(); flag=!flag; // this flag to switch to the other array that the vertices will be stored in, in order to draw the second polygon break; } } void MouseClick(int button, int state , int x , int y) { switch (button) { case GLUT_RIGHT_BUTTON: if (state == GLUT_DOWN) { if (count>0) { DeleteVer(); //dont mind this right now } } break; case GLUT_LEFT_BUTTON: if (state == GLUT_DOWN) { if(count<20) { if(flag =true){ // drawing first polygon GetOGLPos(x, y,xPos,yPos);} if (flag=false) //drawing second polygon after Enter is pressed GetOGLPos(x, y,xPos2,yPos2); } } break; } } void GetOGLPos(int x, int y,float* arrY,float* arrX) //getting the vertices from the user { GLint viewport[4]; GLdouble modelview[16]; GLdouble projection[16]; GLfloat winX, winY, winZ; GLdouble posX, posY, posZ; glGetDoublev( GL_MODELVIEW_MATRIX, modelview ); glGetDoublev( GL_PROJECTION_MATRIX, projection ); glGetIntegerv( GL_VIEWPORT, viewport ); winX = (float)x; winY = (float)viewport[3] - (float)y; glReadPixels( x, int(winY), 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &winZ ); gluUnProject( winX, winY, winZ, modelview, projection, viewport, &posX, &posY, &posZ); arrX[count] = posX; arrY[count] = posY; count++; glPointSize( 6.0 ); glBegin(GL_POINTS); glVertex2f(posX,posY); glEnd(); glFlush(); } void DeleteVer(){ //dont mind this glColor3f ( 1, 1, 1); glBegin(GL_POINTS); glVertex2f(xPos[count-1],yPos[count-1]); glEnd(); glFlush(); xPos[count] = NULL; yPos[count] = NULL; count--; glColor3f ( 0, 0, 0); } void DrawPolygon(float* arrX,float* arrY) { int n=0; glColor3f ( 0, 0, 0); glBegin(GL_POLYGON); while(n<count) { glVertex2f(arrX[n],arrY[n]); n++; } count=0; glEnd(); glFlush(); } void Draw() //main drawing func { glClear(GL_COLOR_BUFFER_BIT); glColor3f(0, 0, 0); if(done) { DrawPolygon(xPos,yPos); DrawPolygon(xPos2,yPos2); } glFlush(); } int main(int argc, char *argv[]) { Initialize(argc, argv); return 0; }

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• SQL SERVER – Simple Demo of New Cardinality Estimation Features of SQL Server 2014

  - by Pinal Dave

  SQL Server 2014 has new cardinality estimation logic/algorithm. The cardinality estimation logic is responsible for quality of query plans and majorly responsible for improving performance for any query. This logic was not updated for quite a while, but in the latest version of SQL Server 2104 this logic is re-designed. The new logic now incorporates various assumptions and algorithms of OLTP and warehousing workload. Cardinality estimates are a prediction of the number of rows in the query result. The query optimizer uses these estimates to choose a plan for executing the query. The quality of the query plan has a direct impact on improving query performance. ~ Souce MSDN Let us see a quick example of how cardinality improves performance for a query. I will be using the AdventureWorks database for my example. Before we start with this demonstration, remember that even though you have SQL Server 2014 to see the effect of new cardinality estimates, you will need your database compatibility mode set to 120 which is for SQL Server 2014. If your server instance of SQL Server 2014 but you have set up your database compatibility mode to 110 or any other earlier version, you will get performance from your query like older version of SQL Server. Now we will execute following query in two different compatibility mode and see its performance. (Note that my SQL Server instance is of version 2014). USE AdventureWorks2014 GO -- ------------------------------- -- NEW Cardinality Estimation ALTER DATABASE AdventureWorks2014 SET COMPATIBILITY_LEVEL = 120 GO EXEC [dbo].[uspGetManagerEmployees] 44 GO -- ------------------------------- -- Old Cardinality Estimation ALTER DATABASE AdventureWorks2014 SET COMPATIBILITY_LEVEL = 110 GO EXEC [dbo].[uspGetManagerEmployees] 44 GO Result of Statistics IO Compatibility level 120 Table ‘Person’. Scan count 0, logical reads 6, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table ‘Employee’. Scan count 2, logical reads 7, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table ‘Worktable’. Scan count 0, logical reads 0, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table ‘Worktable’. Scan count 2, logical reads 7, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Compatibility level 110 Table ‘Worktable’. Scan count 2, logical reads 7, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table ‘Person’. Scan count 0, logical reads 137, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table ‘Employee’. Scan count 2, logical reads 7, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. Table ‘Worktable’. Scan count 0, logical reads 0, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. You will notice in the case of compatibility level 110 there 137 logical read from table person where as in the case of compatibility level 120 there are only 6 physical reads from table person. This drastically improves the performance of the query. If we enable execution plan, we can see the same as well. I hope you will find this quick example helpful. You can read more about this in my latest Pluralsight Course. Reference: Pinal Dave (http://blog.SQLAuthority.com)Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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• Why does my Messaging Menu code not work when split into functions?

  - by fluteflute

  Below are two python programs. They're exactly the same, except for one is split into two functions. However only the one that's split into two functions doesn't work - the second function doesn't work. Why would this be? Note the code is taken from this useful blog post. Without functions (works): import gtk def show_window_function(x, y): print x print y # get the indicate module, which does all the work import indicate # Create a server item mm = indicate.indicate_server_ref_default() # If someone clicks your server item in the MM, fire the server-display signal mm.connect("server-display", show_window_function) # Set the type of messages that your item uses. It's not at all clear which types # you're allowed to use, here. mm.set_type("message.im") # You must specify a .desktop file: this is where the MM gets the name of your # app from. mm.set_desktop_file("/usr/share/applications/nautilus.desktop") # Show the item in the MM. mm.show() # Create a source item mm_source = indicate.Indicator() # Again, it's not clear which subtypes you are allowed to use here. mm_source.set_property("subtype", "im") # "Sender" is the text that appears in the source item in the MM mm_source.set_property("sender", "Unread") # If someone clicks this source item in the MM, fire the user-display signal mm_source.connect("user-display", show_window_function) # Light up the messaging menu so that people know something has changed mm_source.set_property("draw-attention", "true") # Set the count of messages in this source. mm_source.set_property("count", "15") # If you prefer, you can set the time of the last message from this source, # rather than the count. (You can't set both.) This means that instead of a # message count, the MM will show "2m" or similar for the time since this # message arrived. # mm_source.set_property_time("time", time.time()) mm_source.show() gtk.mainloop() With functions (second function is executed but doesn't actually work): import gtk def show_window_function(x, y): print x print y # get the indicate module, which does all the work import indicate def function1(): # Create a server item mm = indicate.indicate_server_ref_default() # If someone clicks your server item in the MM, fire the server-display signal mm.connect("server-display", show_window_function) # Set the type of messages that your item uses. It's not at all clear which types # you're allowed to use, here. mm.set_type("message.im") # You must specify a .desktop file: this is where the MM gets the name of your # app from. mm.set_desktop_file("/usr/share/applications/nautilus.desktop") # Show the item in the MM. mm.show() def function2(): # Create a source item mm_source = indicate.Indicator() # Again, it's not clear which subtypes you are allowed to use here. mm_source.set_property("subtype", "im") # "Sender" is the text that appears in the source item in the MM mm_source.set_property("sender", "Unread") # If someone clicks this source item in the MM, fire the user-display signal mm_source.connect("user-display", show_window_function) # Light up the messaging menu so that people know something has changed mm_source.set_property("draw-attention", "true") # Set the count of messages in this source. mm_source.set_property("count", "15") # If you prefer, you can set the time of the last message from this source, # rather than the count. (You can't set both.) This means that instead of a # message count, the MM will show "2m" or similar for the time since this # message arrived. # mm_source.set_property_time("time", time.time()) mm_source.show() function1() function2() gtk.mainloop()

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• "Error in the Site Data Web Service." when performing crawl

  - by Janis Veinbergs

  Installed SharePoint Services v3 (SP2, october 2009 cumulative updates, Language Pack), attached to a content database I had previously (all works). Installed Search server 2008 Express (with language pack) on top of WSS and crawl does not work. However it works for newly created web application + database. Was playing around with accounts, permissions to try get it working. Currently I have WSS_Crawler account with such permissions: Office Search Server runs with WSS_Crawler account Config database has read permissions for WSS_Crawler Content database has read permissions for WSS_Crawler WSS_Crawler is owner of search database. Added WSS_Crawler to SQL server browser user group and administrator Yes, i'v given more permissions than needed, but it doesn't even work with that and i don't know if its permission problem or what. Crawl log says there is Error in the Site Data Web Service., nothing more. There were known issues with a similar error: Error in the Site Data Web Service. (Value does not fall within the expected range.), but this is not the case as thats an old issue and i hope it has been included in SP2... Logs are from olders to newest (descending order). They don't appear to be very helpful. Crawl log http://serveris Crawled Local Office SharePoint Server sites 3/15/2010 9:39 AM sts3://serveris Crawled Local Office SharePoint Server sites 3/15/2010 9:39 AM sts3://serveris/contentdbid={55180cfa-9d2d-46e4... Crawled Local Office SharePoint Server sites 3/15/2010 9:39 AM http://serveris/test Error in the Site Data Web Service. Local Office SharePoint Server sites 3/15/2010 9:39 AM http://serveris Error in the Site Data Web Service. Local Office SharePoint Server sites 3/15/2010 9:39 AM EventLog No errors in EventLog, just some Information events that Office Server Search provides The search service started. Successfully stored the application configuration registry snapshot in the database. Context: Application 'SharedServices Component: da1288b2-4109-4219-8c0c-3a22802eb842 Catalog: Portal_Content. A master merge was started due to an external request. Component: da1288b2-4109-4219-8c0c-3a22802eb842 A master merge has completed for catalog Portal_Content. Component: da1288b2-4109-4219-8c0c-3a22802eb842 Catalog: AnchorProject. A master merge was started due to an external request. Component: da1288b2-4109-4219-8c0c-3a22802eb842 A master merge has completed for catalog AnchorProject. ULS Log Just some information, but no exceptions, unexpected errors 03/15/2010 09:03:28.28 mssearch.exe (0x1B2C) 0x0E8C Search Server Common GatherStatus 0 Monitorable Insert crawl 771 to inprogress queue hr 0x00000000 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6591 03/15/2010 09:03:28.28 mssearch.exe (0x1B2C) 0x0E8C Search Server Common GatherStatus 0 Monitorable Request Start Crawl 1, project Portal_Content, crawl 771 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:28.28 mssearch.exe (0x1B2C) 0x0E8C Search Server Common GatherStatus 0 Monitorable Advise status change 1, project Portal_Content, crawl 771 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:28.28 w3wp.exe (0x1D98) 0x0958 Search Server Common MS Search Administration 8wn6 Information A full crawl was started on 'Local Office SharePoint Server sites' by BALTICOVO\janis.veinbergs. 03/15/2010 09:03:28.43 mssdmn.exe (0x1750) 0x10F8 ULS Logging Unified Logging Service 8wsv High ULS Init Completed (mssdmn.exe, Microsoft.Office.Server.Native.dll) 03/15/2010 09:03:30.48 mssdmn.exe (0x1750) 0x09C0 Search Server Common MS Search Indexing 8z0v Medium Create CCache 03/15/2010 09:03:30.56 mssdmn.exe (0x1750) 0x09C0 Search Server Common MS Search Indexing 8z0z Medium Create CUserCatalogCache 03/15/2010 09:03:32.06 w3wp.exe (0x1D98) 0x0958 Search Server Common MS Search Administration 90ge Medium SQL: dbo.proc_MSS_PropagationGetQueryServers 03/15/2010 09:03:32.09 w3wp.exe (0x1D98) 0x0958 Search Server Common MS Search Administration 7phq High GetProtocolConfigHelper failed in GetNotesInterface(). 03/15/2010 09:03:34.26 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:35.92 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:37.32 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:37.23 mssdmn.exe (0x1750) 0x1850 Search Server Common MS Search Indexing 8z14 Medium Test TRACE (NULL):(null), (NULL)(null), (CrLf): , end 03/15/2010 09:03:39.04 mssearch.exe (0x1B2C) 0x16A4 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:40.98 mssdmn.exe (0x1750) 0x0B24 Search Server Common MS Search Indexing 7how Monitorable GetWebDefaultPage fail. error 2147755542, strWebUrl http://serveris 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Accessor::GetSubWebListItemAccessURL GetAccessURL failed: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:505 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init: GetSubWebListItemAccessURL failed. Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:348 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init fails, Url sts3://serveris/siteurl=test/siteid={390611b2-55f3-4a99-8600-778727177a28}/weburl=/webid={fb0e4bff-65d5-4ded-98d5-fd099456962b}, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:243 03/15/2010 09:03:41.87 mssdmn.exe (0x1750) 0x1260 Search Server Common PHSts 0 Monitorable CSTS3Handler::CreateAccessorExB: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:261 03/15/2010 09:03:40.98 mssdmn.exe (0x1750) 0x1260 Search Server Common MS Search Indexing 7how Monitorable GetWebDefaultPage fail. error 2147755542, strWebUrl http://serveris/test 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Accessor::GetSubWebListItemAccessURL GetAccessURL failed: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:505 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init: GetSubWebListItemAccessURL failed. Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3acc.cxx Line:348 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Accessor::Init fails, Url sts3://serveris/siteurl=/siteid={505443fa-ef12-4f1e-a04b-d5450c939b78}/weburl=/webid={c5a4f8aa-9561-4527-9e1a-b3c23200f11c}, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:243 03/15/2010 09:03:41.90 mssdmn.exe (0x1750) 0x0B24 Search Server Common PHSts 0 Monitorable CSTS3Handler::CreateAccessorExB: Return error to caller, hr=80042616 - File:d:\office\source\search\search\gather\protocols\sts3\sts3handler.cxx Line:261 03/15/2010 09:03:43.26 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 24, project Portal_Content, crawl 771 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:43.26 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Remove crawl 771 from inprogress queue - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6722 03/15/2010 09:03:43.26 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project Portal_Content, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Insert crawl 772 to inprogress queue hr 0x00000000 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6591 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Request Start Crawl 0, project AnchorProject, crawl 772 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Advise status change 0, project AnchorProject, crawl 772 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:44.65 mssearch.exe (0x1B2C) 0x1804 Search Server Common GatherStatus 0 Monitorable Unlock Queue, project Portal_Content - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2922 03/15/2010 09:03:44.82 mssearch.exe (0x1B2C) 0x1DD0 Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:44.95 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:46.51 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:46.39 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.01 mssearch.exe (0x1B2C) 0x1C6C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.87 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.29 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.53 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.67 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.82 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.84 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.89 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:49.90 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:51.42 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GatherStatus 0 Monitorable Advise status change 4, project AnchorProject, crawl 772 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:51.00 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:51.42 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Remove crawl 772 from inprogress queue - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6722 03/15/2010 09:03:52.96 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Insert crawl 773 to inprogress queue hr 0x00000000 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6591 03/15/2010 09:03:52.96 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Request Start Crawl 0, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Unlock Queue, project AnchorProject - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2922 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Removed start crawl request from Queue 0, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2942 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Request Start Crawl 0, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2875 03/15/2010 09:03:55.29 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GatherStatus 0 Monitorable Advise status change 0, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:55.37 mssearch.exe (0x1B2C) 0x1CCC Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:55.37 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:56.71 mssearch.exe (0x1B2C) 0x1E4C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:56.78 mssearch.exe (0x1B2C) 0x0750 Search Server Common GatherStatus 0 Monitorable Advise status change 12, project AnchorProject, crawl -1 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:58.40 mssearch.exe (0x1B2C) 0x155C Search Server Common GathererSql 0 Monitorable CGatherer::LoadTransactionsFromCrawlInternal Flush anchor, count 0 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4943 03/15/2010 09:03:58.89 mssearch.exe (0x1B2C) 0x155C Search Server Common GatherStatus 0 Monitorable Advise status change 4, project AnchorProject, crawl 773 - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:4853 03/15/2010 09:03:58.89 mssearch.exe (0x1B2C) 0x1130 Search Server Common GatherStatus 0 Monitorable Remove crawl 773 from inprogress queue - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:6722 03/15/2010 09:03:58.89 mssearch.exe (0x1B2C) 0x1130 Search Server Common GatherStatus 0 Monitorable Unlock Queue, project AnchorProject - File:d:\office\source\search\search\gather\server\gatherobj.cxx Line:2922 What could be wrong here - any clues?

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• UIAlertView -show causing a memory leak

  - by Erik

  I'm relatively new to iPhone Development, so this may be my fault, but it goes against what I've seen. :) I think that I'm creating a UIAlertView that lives just in this vaccuum of the 'if' statement. NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; if(!data) { // Add an alert UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Unable to contact server" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil]; NSLog(@"retain count before show: %i", alert.retainCount); [alert show]; NSLog(@"retain count before release: %i", alert.retainCount); [alert release]; NSLog(@"retain count after release: %i", alert.retainCount); return nil; } However, the console logs baffle me. retain count before show: 1 retain count before release: 6 retain count after release: 5 I've tried also adding: alert = nil; after the release. That makes the retain count 0, but I still show a leak. And if it helps, the leak's Responsible Frame is UIKeyboardInputManagerClassForInputMode. I'm also using OS 4 Beta 3. So anyone have any ideas how a local UIAlertView's retain count would increment itself by 5 when calling -show? Thanks for your help!

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• Binary Trees in Scheme

  - by Javier

  Consider the following BNF defining trees of numbers. Notice that a tree can either be a leaf, a node-1 with one subtrees, or a node-2 with two subtrees. tree ::= (’leaf number) | (’node-1 tree) | (’node-2 tree tree) a. Write a template for recursive procedures on these trees. b. Define the procedure (leaf-count t) that returns the number of leaves in t > (leaf-count ’(leaf 5)) 1 > (leaf-count ’(node-2 (leaf 25) (leaf 17))) 2 > (leaf-count ’(node-1 (node-2 (leaf 4) (node-2 (leaf 2) (leaf 3))))) 3 Here's what I have so far: ;define what a leaf, node-1, and node-2 is (define leaf list) (define node-1 list) (define node-2 list) ;procedure to decide if a list is a leaf or a node (define (leaf? tree) (number? (car tree))) (define (node? tree) (pair? (car tree))) (define (leaf-count tree) (cond ((null? tree) 0) ((number? tree) 0) ((leaf? tree) 1) (else (+ (leaf-count (car tree)) (leaf-count (cdr tree)))))) It looks like it should run just fine, but when I try to run it using a simple test case like (leaf-count '(leaf 5)) I get the following error message: car: expects argument of type pair; given leaf What does this error message mean? I am defining a leaf as a list. But for some reason, it's not seeing that and gives me that error message.

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• ProgrammingError when aggregating over an annotated & grouped Django ORM query

  - by ento

  I'm trying to construct a query to get the "average, maximum, minimum number of items purchased by a single user". The data source is this simple sales record table: class SalesRecord(models.Model): id = models.IntegerField(primary_key=True) user_id = models.IntegerField() product_code = models.CharField() price = models.IntegerField() created_at = models.DateTimeField() A new record is inserted into this table for every item purchased by a user. Here's my attempt at building the query: q = SalesRecord.objects.all() q = q.values('user_id').annotate( # group by user and count the # of records count=Count('id'), # (= # of items) ).order_by() result = q.aggregate(Max('count'), Min('count'), Avg('count')) When I try to execute the code, a ProgrammingError is raised at the last line: (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 'FROM (SELECT sales_records.user_id AS user_id, COUNT(sales_records.`' at line 1") Django's error screen shows that the SQL is SELECT FROM (SELECT `sales_records`.`player_id` AS `player_id`, COUNT(`sales_records`.`id`) AS `count` FROM `sales_records` WHERE (`sales_records`.`created_at` >= %s AND `sales_records`.`created_at` <= %s ) GROUP BY `sales_records`.`player_id` ORDER BY NULL) subquery It's not selecting anything! Can someone please show me the right way to do this? Hacking Django I've found that clearing the cache of selected fields in django.db.models.sql.BaseQuery.get_aggregation() seems to solve the problem. Though I'm not really sure this is a fix or a workaround. @@ -327,10 +327,13 @@ # Remove any aggregates marked for reduction from the subquery # and move them to the outer AggregateQuery. + self._aggregate_select_cache = None + self.aggregate_select_mask = None for alias, aggregate in self.aggregate_select.items(): if aggregate.is_summary: query.aggregate_select[alias] = aggregate - del obj.aggregate_select[alias] + if alias in obj.aggregate_select: + del obj.aggregate_select[alias] ... yields result: {'count__max': 267, 'count__avg': 26.2563, 'count__min': 1}

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• System.InvalidOperationException in Output Window

  - by user318068

  I constantly get the following message in my output/debug windows. The app doesn't crash but I was wondering what the deal with it is: A first chance exception of type 'System.InvalidOperationException' occurred in System.dll my code :sol.cs using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 { class Sol { public LinkedList<int> tower1 = new LinkedList<int>(); public LinkedList<int> tower2 = new LinkedList<int>(); public LinkedList<int> tower3 = new LinkedList<int>(); public static LinkedList<string> BFS = new LinkedList<string>(); public static LinkedList<string> DFS = new LinkedList<string>(); public static LinkedList<string> IDS = new LinkedList<string>(); public int depth; public LinkedList<Sol> neighbors; public Sol() { } public Sol(LinkedList<int> tower1, LinkedList<int> tower2, LinkedList<int> tower3) { this.tower1 = tower1; this.tower2 = tower2; this.tower3 = tower3; neighbors = new LinkedList<Sol>(); } public virtual void getneighbors() { Sol temp = this.copy(); Sol neighbor1 = this.copy(); Sol neighbor2 = this.copy(); Sol neighbor3 = this.copy(); Sol neighbor4 = this.copy(); Sol neighbor5 = this.copy(); Sol neighbor6 = this.copy(); if (temp.tower1.Count != 0) { if (neighbor1.tower2.Count != 0) { if (neighbor1.tower1.First.Value < neighbor1.tower2.First.Value) { neighbor1.tower2.AddFirst(neighbor1.tower1.First); neighbor1.tower1.RemoveFirst(); neighbors.AddLast(neighbor1); } } else { neighbor1.tower2.AddFirst(neighbor1.tower1.First); neighbor1.tower1.RemoveFirst(); neighbors.AddLast(neighbor1); } if (neighbor2.tower3.Count != 0) { if (neighbor2.tower1.First.Value < neighbor2.tower3.First.Value) { neighbor2.tower3.AddFirst(neighbor2.tower1.First); neighbor2.tower1.RemoveFirst(); neighbors.AddLast(neighbor2); } } else { neighbor2.tower3.AddFirst(neighbor2.tower1.First); neighbor2.tower1.RemoveFirst(); neighbors.AddLast(neighbor2); } } //------------- if (temp.tower2.Count != 0) { if (neighbor3.tower1.Count != 0) { if (neighbor3.tower2.First.Value < neighbor3.tower1.First.Value) { neighbor3.tower1.AddFirst(neighbor3.tower2.First); neighbor3.tower2.RemoveFirst(); neighbors.AddLast(neighbor3); } } else { neighbor3.tower1.AddFirst(neighbor3.tower2.First); neighbor3.tower2.RemoveFirst(); neighbors.AddLast(neighbor3); } if (neighbor4.tower3.Count != 0) { if (neighbor4.tower2.First.Value < neighbor4.tower3.First.Value) { neighbor4.tower3.AddFirst(neighbor4.tower2.First); neighbor4.tower2.RemoveFirst(); neighbors.AddLast(neighbor4); } } else { neighbor4.tower3.AddFirst(neighbor4.tower2.First); neighbor4.tower2.RemoveFirst(); neighbors.AddLast(neighbor4); } } //------------------------ if (temp.tower3.Count() != 0) { if (neighbor5.tower1.Count() != 0) { if (neighbor5.tower3.ElementAtOrDefault(0) < neighbor5.tower1.ElementAtOrDefault(0)) { neighbor5.tower1.AddFirst(neighbor5.tower3.First); neighbor5.tower3.RemoveFirst(); neighbors.AddLast(neighbor5); } } else { neighbor5.tower1.AddFirst(neighbor5.tower3.First); neighbor5.tower3.RemoveFirst(); neighbors.AddLast(neighbor5); } if (neighbor6.tower2.Count() != 0) { if (neighbor6.tower3.ElementAtOrDefault(0) < neighbor6.tower2.ElementAtOrDefault(0)) { neighbor6.tower2.AddFirst(neighbor6.tower3.First); neighbor6.tower3.RemoveFirst(); neighbors.AddLast(neighbor6); } } else { neighbor6.tower2.AddFirst(neighbor6.tower3.First); neighbor6.tower3.RemoveFirst(); neighbors.AddLast(neighbor6); } } } public override string ToString() { string str; str = "tower1" + tower1.ToString() + " tower2" + tower2.ToString() + " tower3" + tower3.ToString(); return str; } public Sol copy() { Sol So; LinkedList<int> l1 = new LinkedList<int>(); LinkedList<int> l2 = new LinkedList<int>(); LinkedList<int> l3 = new LinkedList<int>(); for (int i = 0; i <= this.tower1.Count() - 1; i++) { l1.AddLast(tower1.ElementAt(i)); } for (int i = 0; i <= this.tower2.Count - 1; i++) { l2.AddLast(tower2.ElementAt(i)); } for (int i = 0; i <= this.tower3.Count - 1; i++) { l3.AddLast(tower3.ElementAt(i)); } So = new Sol(l1, l2, l3); return So; } public bool Equals(Sol sol) { if (this.tower1.Equals(sol.tower1) & this.tower2.Equals(sol.tower2) & this.tower3.Equals(sol.tower3)) return true; return false; } public virtual bool containedin(Stack<Sol> vec) { bool found = false; for (int i = 0; i <= vec.Count - 1; i++) { if (vec.ElementAt(i).tower1.Equals(this.tower1) && vec.ElementAt(i).tower2.Equals(this.tower2) && vec.ElementAt(i).tower3.Equals(this.tower3)) { found = true; break; } } return found; } public virtual bool breadthFirst(Sol start, Sol goal) { Stack<Sol> nextStack = new Stack<Sol>(); Stack<Sol> traversed = new Stack<Sol>(); bool found = false; start.depth = 0; nextStack.Push(start); while (nextStack.Count != 0) { Sol sol = nextStack.Pop(); BFS.AddFirst("poped State:" + sol.ToString() + "level " + sol.depth); traversed.Push(sol); if (sol.Equals(goal)) { found = true; BFS.AddFirst("Goal:" + sol.ToString()); break; } else { sol.getneighbors(); foreach (Sol neighbor in sol.neighbors) { if (!neighbor.containedin(traversed) && !neighbor.containedin(nextStack)) { neighbor.depth = (sol.depth + 1); nextStack.Push(neighbor); } } } } return found; } public virtual bool depthFirst(Sol start, Sol goal) { Stack<Sol> nextStack = new Stack<Sol>(); Stack<Sol> traversed = new Stack<Sol>(); bool found = false; start.depth = 0; nextStack.Push(start); while (nextStack.Count != 0) { //Dequeue next State for comparison //And add it 2 list of traversed States Sol sol = nextStack.Pop(); DFS.AddFirst("poped State:" + sol.ToString() + "level " + sol.depth); traversed.Push(sol); if (sol.Equals(goal)) { found = true; DFS.AddFirst("Goal:" + sol.ToString()); break; } else { sol.getneighbors(); foreach (Sol neighbor in sol.neighbors) { if (!neighbor.containedin(traversed) && !neighbor.containedin(nextStack)) { neighbor.depth = sol.depth + 1; nextStack.Push(neighbor); } } } } return found; } public virtual bool iterativedeepening(Sol start, Sol goal) { bool found = false; for (int level = 0; ; level++) { Stack<Sol> nextStack = new Stack<Sol>(); Stack<Sol> traversed = new Stack<Sol>(); start.depth = 0; nextStack.Push(start); while (nextStack.Count != 0) { Sol sol = nextStack.Pop(); IDS.AddFirst("poped State:" + sol.ToString() + "Level" + sol.depth); traversed.Push(sol); if (sol.Equals(goal)) { found = true; IDS.AddFirst("Goal:" + sol.ToString()); break; } else if (sol.depth < level) { sol.getneighbors(); foreach (Sol neighbor in sol.neighbors) { if (!neighbor.containedin(traversed) && !neighbor.containedin(nextStack)) { neighbor.depth = sol.depth + 1; nextStack.Push(neighbor); } //end if } //end for each } //end else if } // end while if (found == true) break; } // end for return found; } } } Just wondering if I may be doing something wrong somewhere or something.

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• How to access elements in a complex list?

  - by Martin

  Hi, it's me and the lists again. I have a nice list, which looks like this: tmp = NULL t = NULL tmp$resultitem$count = "1057230" tmp$resultitem$status = "Ok" tmp$resultitem$menu = "PubMed" tmp$resultitem$dbname = "pubmed" t$resultitem$count = "305215" t$resultitem$status = "Ok" t$resultitem$menu = "PMC" t$resultitem$dbname = "pmc" tmp = c(tmp, t) t = NULL t$resultitem$count = "1" t$resultitem$status = "Ok" t$resultitem$menu = "Journals" t$resultitem$dbname = "journals" tmp = c(tmp, t) Which produces: str(tmp) List of 3 $ resultitem:List of 4 ..$ count : chr "1057230" ..$ status: chr "Ok" ..$ menu : chr "PubMed" ..$ dbname: chr "pubmed" $ resultitem:List of 4 ..$ count : chr "305215" ..$ status: chr "Ok" ..$ menu : chr "PMC" ..$ dbname: chr "pmc" $ resultitem:List of 4 ..$ count : chr "1" ..$ status: chr "Ok" ..$ menu : chr "Journals" ..$ dbname: chr "journals" Now I want to search through the elements of each "resultitem". I want to know the "dbname" for every database, that has less then 10 "count" (example). In this case it is very easy, as this list only has 3 elements, but the real list is a little bit longer. This could be simply done with a for loop. But is there a way to do this with some other function of R (like rapply)? My problem with those apply functions is, that they only look at one element. If I do a grep to get all "dbname" elements, I can not get the count of each element. rapply(tmp, function(x) paste("Content: ", x))[grep("dbname", names(rapply(tmp, c)))] Does someone has a better idea than a for loop? Thanx, Martin

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• C# - Bug in Code Logic

  - by Matthew

  I have some code which keeps track of the number of times a button has been clicked. As a matter of fact, when the page first loads, a counter is set to 0. On every postback, the counter is incremented by 1. I have only one button on the page. The main idea behind this is to allow the user to enter some details 4 times. If he enters invalid details for 4 times, he is redirected to an error page. Otherwise, he is redirected to a confirmation page. This is my code: if (!this.IsPostBack) { Session["Count"] = 0; } else { if (Session["Count"] == null) { Session.Abandon(); Response.Redirect("CheckOutErrorPage.htm"); } else { int count = (int)Session["Count"]; if (count == 3) { Session.Abandon(); Response.Redirect("CheckOutFailure.aspx"); } else { count++; Session["Count"] = count; } } } Everything works as it should except that if the user enter invalid details for 3 times and then he enters VALID details on the 4th time, the user is redirected to the Error Page (because he has tried 4 times) instead of the confirmation page. How can I solve this please?

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• java oracle syntax error?

  - by murali

  hi, i am using the following code for the uploading keywords & count to the excel file. i am having the keyword_id as primary key for that one i had written sentence...i am having the twocolumns in the excel file..1.keyword 2.count my code is: while (rs.next()) { System.out.println("inside "); String keyword = rs.getString(1); int count = rs.getInt(2); System.out.println("insert into SEARCHABLE_KEYWORDS values ('"+ keyword+"','"+count+"')"); stmtdb.execute("insert into SEARCHABLE_KEYWORDS (keyword_id,keyword,count) values ('"+ "select Searchable_Keywords_sequence.nextval from dual"+ "','"+keyword+"','"+count+"')"); System.out.println(keyword + " " + keyword+" count "+count); } but I am getting the following error: java.sql.SQLException: [Microsoft][ODBC Excel Driver] Too few parameters. Expected 1. at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6998) at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7155) at sun.jdbc.odbc.JdbcOdbc.SQLExecDirect(JdbcOdbc.java:3151) at sun.jdbc.odbc.JdbcOdbcStatement.execute(JdbcOdbcStatement.java:378) at sun.jdbc.odbc.JdbcOdbcStatement.executeQuery(JdbcOdbcStatement.java:284) at keywordsreader.main(keywordsreader.java:42) please help to slove this problem...

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• Java Recursion Triangle Standing on Tip

  - by user1629075

  I was wondering how to create triangle out of asterisks on its tip rather than on its base. I have the code for making it stand on its base: public static String printTriangle (int count) { if( count <= 0 ) return ""; String p = printTriangle(count - 1); p = p + "*"; System.out.print(p); System.out.print("\n"); return p; } But then I'm stuck on how to have the greatest number of stars on the top, and then the next least, and so on. I was thinking something along the terms of having (count - p) to have the input of rows be subtracted from the amount of decrease, but then i was confused by this idea because p is string. EDIT: I tried changing the position of printTriangle(count - 1) using my original method without iterations and got 1 star per each line; how can I fix this? public class triangles { public static void main(String[] args) { printTriangle(5); } public static String printTriangle (int count) { if( count <= 0 ) return ""; String p = ""; p = p + "*"; System.out.print(p); System.out.print("\n"); p = printTriangle(count - 1); return p; } }

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• lock statement not working when there is a loop inside it?

  - by Ngu Soon Hui

  See this code: public class multiply { public Thread myThread; public int Counter { get; private set; } public string name { get; private set; } public void RunConsolePrint() { lock(this) { RunLockCode("lock"); } } private void RunLockCode(string lockCode) { Console.WriteLine("Now thread "+lockCode+" " + name + " has started"); for (int i = 1; i <= Counter; i++) { Console.WriteLine(lockCode+" "+name + ": count has reached " + i + ": total count is " + Counter); } Console.WriteLine("Thread " + lockCode + " " + name + " has finished"); } public multiply(string pname, int pCounter) { name = pname; Counter = pCounter; myThread = new Thread(new ThreadStart(RunConsolePrint)); } } And this is the test run code: static void Main(string[] args) { int counter = 50; multiply m2 = new multiply("Second", counter); multiply m1 = new multiply("First", counter); m1.myThread.Start(); m2.myThread.Start(); Console.ReadLine(); } I would expect that m2 must execute from start to finish before m1 starts executing, or vice versa, because of the lock statement. But the result I found was the call to lock first and lock second was intermingled together, i.e., something like this Now thread lock First has started Now thread lock Second has started lock First: Count has reached 1: total count is 50 lock First: Count has reached 2: total count is 50 lock Second: Count has reached 1: total count is 50 What did I do wrong?

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• Trigger alert when database entries are added, not when they are removed

  - by Jeremy

  I have a jQuery script running that makes a periodic AJAX call using the following code. var a = moment(); var dayOfMonth = a.format("MMM Do"); var timeSubmitted = a.format("h:mm a"); var count_cases = -1; var count_claimed = -1; setInterval(function(){ //check if new lead was added to the db $.ajax({ type : "POST", url : "inc/new_lead_alerts_process.php", dataType: 'json', cache: false, success : function(response){ $.getJSON("inc/new_lead_alerts_process.php", function(data) { if (count_cases != -1 && count_cases != data.count) { window.location = "new_lead_alerts.php?id="+data.id; } count_cases = data.count; }); } }); This is the PHP that runs with each call: $count = mysql_fetch_array(mysql_query("SELECT count(*) as count FROM leads")); $client_id = mysql_fetch_array(mysql_query("SELECT id, client_id FROM leads ORDER BY id DESC LIMIT 1")); echo json_encode(array("count" => $count['count'], "id" => $client_id['id'], "client_id" => $client_id['client_id'])); I need to change the code so that the alert only triggers when a new entry is added to the database, not when an existing entry is removed. As it stands, the alert fires on both events. Any help is greatly appreciated.

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