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Search found 2221 results on 89 pages for 'equal'.

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• Testing a command from Perl and checking content of a file

  - by justintime

  I want to test a script I have written in Perl and specifically check what output it writes to file. I wrote it some time ago and don't want to modify it to the extent of turning it into a module but would like to regression test it before adding some small functional changes. So far I have use Test::Command tests = 10; exit_is_num($cmd, 0); .... But the command produces some files and I want to check those files are the same as I expect (either equal or match some regexp). Any suggestions

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• How to sort a list alphabetically and have additional lists sorted in the same order

  - by Carl

  I have 3 lists, each with equal elements: email addresses, salaries and IDs I'd like to sort the email addresses alphabetically and in some way sort the other 2 lists (salaries and IDs). E.g., Emails: [email protected] [email protected] Salaries: 50000 60000 IDs: 2 1 The puzzle: I'd like to sort Emails such that [email protected] is first and [email protected] is last and Salaries is 60000 then 50000 and IDs is 1 then 2. Additional detail: 1. Length of lists are the same and can be longer than two elements. 2. I will subsequently pass IDs to functions to retrieve further lists. Those lists won't need sorting as they will adopt the order of the IDs list.

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• Incorrect value for sum of two NSIntegers

  - by Antonio

  Hi everybody: I'm sure I'm missing something and the answer is very simple, but I can't seem to understand why this is happening. I'm trying to make an average of dates: NSInteger runningSum =0; NSInteger count=0; for (EventoData *event in self.events) { NSDate *dateFromString = [[NSDate alloc] init]; if (event.date != nil) { dateFromString = [dateFormatter dateFromString:event.date]; runningSum += (NSInteger)[dateFromString timeIntervalSince1970]; count += 1; } } if (count>0) { NSLog(@"average is: %@",[NSDate dateWithTimeIntervalSince1970:(NSInteger)((CGFloat)runningAverage/count)]); } Everything seems to work OK, except for runningSum += (NSInteger)[dateFromString timeIntervalSince1970], which gives an incorrect result. If I put a breakpoint when taking the average of two equal dates (2009-10-10, for example, which is a timeInterval of 1255125600), runningSum is -1784716096, instead of the expected 2510251200. I've tried using NSNumber and I get the same result. Can anybody point me in the right direction? Thanks! Antonio

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• Comparing two List<MyClass> in C#

  - by Matt

  I have a class called MyClass This class inherits IEquatable and implements equals the way I need it to. (Meaning: when I compare two MyClass tyupe objects individually in code, it works) I then create two List: var ListA = new List<MyClass>(); var ListB = new List<MyClass>(); // Add distinct objects that are equal to one another to // ListA and ListB in such a way that they are not added in the same order. When I go to compare ListA and ListB, should I get true? ListA.Equals(ListB)==true; //???

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• Why can't I input the integers from a file?

  - by Anthony Glyadchenko

  I'm trying to get this C++ code to input a series of numbers from a text file: int x = 0; cin >> x; ifstream iffer; int numbers[12]; iffer.open("input.txt"); for (int i = 0; i < 12; i++){ iffer >> numbers[i]; } This doesn't seem to work on the Mac. Every cell will equal to 0 regardless of the values in the text file. In other words, the ifstream isn't assigning the numbers. How can I make this work? Is it a Mac issue and if so, how can I get it to work? Thanks! Anthony Glyadchenko

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• From a Perl test file, how do I check the contents of a file?

  - by justintime

  I want to test a script I have written in Perl and specifically check what output it writes to file. I wrote it some time ago and don't want to modify it to the extent of turning it into a module but would like to regression test it before adding some small functional changes. So far I have use Test::Command tests => 10; exit_is_num($cmd, 0); .... But the command produces some files and I want to check those files are the same as I expect (either equal or match some regexp). Any suggestions

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• Setting height of a relatively positioned DIV

  - by Salman A

  I have following HTML+CSS markup: <div id="protofade" style="position: relative;"> <div style="position: absolute;"><img src="slide-01.jpg"></div> <div style="position: absolute;"><img src="slide-02.jpg"></div> <div style="position: absolute;"><img src="slide-03.jpg"></div> </div> Notice that the slides are absolute-positioned inside a relative-positioned element so that the top-left corners of all slides are aligned together. All slides are equal height, but the height is not pre-determined hence this problem: the "protofade" div does not have a height. Is there any CSS trick that can make this div as tall as the first slide without explicitly specifying height: NNpx.

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• Floating point arithmetic is too reliable.

  - by mcoolbeth

  I understand that floating point arithmetic as performed in modern computer systems is not always consistent with real arithmetic. I am trying to contrive a small C# program to demonstrate this. eg: static void Main(string[] args) { double x = 0, y = 0; x += 20013.8; x += 20012.7; y += 10016.4; y += 30010.1; Console.WriteLine("Result: "+ x + " " + y + " " + (x==y)); Console.Write("Press any key to continue . . . "); Console.ReadKey(true); } However, in this case, x and y are equal in the end. Is it possible for me to demonstrate the inconsistency of floating point arithmetic using a program of similar complexity, and without using any really crazy numbers? I would like, if possible, to avoid mathematically correct values that go more than a few places beyond the decimal point.

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• undefined method get with sinatra

  - by dorelal

  I have following code require 'rubygems' require 'sinatra' get '/' do 'Hello World!' end gem list sinatra *** LOCAL GEMS *** sinatra (1.0, 0.9.4) ruby -v ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10.2.0] Error ruby myapp.rb ["==", "===", "=~", "__id__", "__send__", "class", "clone", "display", "dup", "enum_for", "eql?", "equal?", "extend", "freeze", "frozen?", "hash", "id", "include", "inspect", "instance_eval", "instance_exec", "instance_of?", "instance_variable_defined?", "instance_variable_get", "instance_variable_set", "instance_variables", "is_a?", "kind_of?", "method", "methods", "nil?", "object_id", "private", "private_methods", "protected_methods", "public", "public_methods", "respond_to?", "send", "singleton_methods", "taguri", "taguri=", "taint", "tainted?", "tap", "to_a", "to_enum", "to_s", "to_yaml", "to_yaml_properties", "to_yaml_style", "type", "untaint"] ./sinatra.rb:17: undefined method `get' for main:Object (NoMethodError) from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from myapp.rb:3

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• Strlen of MAX 16 chars string using bitwise operators

  - by fabrizioM

  The challenge is to find the fastest way to determine in C/C++ the length of a c-string using bitwise operations in C. char thestring[16]; The c-string has a max size of 16 chars and is inside a buffer If the string is equal to 16 chars doesn't have the null byte at the end. I am sure can be done but didn't got it right yet. I am working on this at the moment, but assuming the string is memcpied on a zero-filled buffer. len = buff[0] != 0x0 + buff[1] != 0x0 + buff[2] != 0x0 + buff[3] != 0x0 + buff[4] != 0x0 + buff[5] != 0x0 + buff[6] != 0x0 + buff[7] != 0x0 + buff[8] != 0x0 + buff[9] != 0x0 + buff[10] != 0x0 + buff[11] != 0x0 + buff[12] != 0x0 + buff[13] != 0x0 + buff[14] != 0x0 + buff[15] != 0x0;

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• fgets and strcmp [C]

  - by Blackbinary

  I'm trying to compare two strings. One stored in a file, the other retrieved from the user (stdin). Here is a sample program: int main() { char targetName[50]; fgets(targetName,50,stdin); char aName[] = "bob"; printf("%d",strcmp(aName,targetName)); return 0; } In this program, strcmp returns a value of -1 when the input is 'bob'. Why is this? I thought they should be equal. How can i get it so that they are?

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• I am getting exception in main thread...even when i am handling the exception

  - by fari

  public KalaGame(KeyBoardPlayer player1,KeyBoardPlayer player2) { //super(0); int key=0; try { do{ System.out.println("Enter the number of stones to play with: "); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); key = Integer.parseInt(br.readLine()); if(key<0 || key>10) throw new InvalidStartingStonesException(key); } while(key<0 || key>10); player1=new KeyBoardPlayer(); player2 = new KeyBoardPlayer(); this.player1=player1; this.player2=player2; state=new KalaGameState(key); } catch(IOException e) { System.out.println(e); } } when i enter an invalid number of stones i get this error Exception in thread "main" InvalidStartingStonesException: The number of starting stones must be greater than 0 and less than or equal to 10 (attempted 22) why isn't the exception handled by the throw i defined at KalaGame.<init>(KalaGame.java:27) at PlayKala.main(PlayKala.java:10)

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• WPF: Problem with SelectedItem for ComboBox

  - by Anry

  XAML: <ComboBox Height="27" Margin="124,0,30,116" Name="cbProductDefaultVatRate" VerticalAlignment="Bottom" ItemsSource="{Binding}"> <ComboBox.ItemTemplate> <DataTemplate> <Label Height="26" Content="{Binding Path=Value}"/> </DataTemplate> </ComboBox.ItemTemplate> </ComboBox> Set Data for cbProductDefaultVatRate.Items (Type - VatRate): private void ShowAllVatRates() { cbProductDefaultVatRate.Items.Clear(); cbProductDefaultVatRate.ItemsSource = new VatRateRepository().GetAll(); } Similarly, I defined property: private Product SelectedProduct { get; set; } The Product contains VatRate: SelectedProduct.DefaultVatRate How to set SelectedItem equal SelectedProduct.DefaultVatRate? I tried: cbProductDefaultVatRate.SelectedItem = SelectedProduct.DefaultVatRate; But it does not work. Thank you for answers!

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• Dictionary with delegate or swith?

  - by Samvel Siradeghyan

  Hi, I am writting a parser, which call some functions dependent on some value. I can implement this logic with simple switch like this swith(some_val) { case 0: func0(); break; case 1: func1(); break; } or with delegates and dictinary like this delegate void some_delegate(); Dictinary some_dictinary = new Dictinary(); some_dictinary[0] = func0; some_dictinary[1] = func1; some_dictinary[some_value].Invoke(); Are this two metods equal and wich is prefered? Thanks.

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• Is there a way to put relationships/contraints into CSS?

  - by hekevintran

  In every design tool or art principle I've heard of, relationships are a central theme. By relationships I mean the thing you can do in Adobe Illustrator to specify that the height of one shape is equal to half the height of another. You cannot express this information in CSS. CSS hard-codes all values. Using a language like LESS that allows variables and arithmetic you can get closer to relationships but it's still a CSS variant. This inability in my mind is the biggest problem with CSS. CSS is supposed to be a language that describes the visual component of a Web page but it ignores relationships and contraints, ideas that are at the core of art. How possible is it to imagine a new Web design language that can express relationships and contraints that can be implemented in JavaScript using the current CSS properties?

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• Decimal Base Conversion using PYTHON

  - by Butinyane More

  PROBLEM DESCRIPTION Given a decimal number, and a new base to represent it in. If the base is larger than 10, use capital letters for the digits(that is, A is 10, B is 11 and so forth). The decimal number given, and the new base, will both be integer values, separated by a space. The base to convert to will always be smaller than or equal to 30. Please create a program that will convert a decimal number to any base in this instance. When evaluating the program the sample input must something like: 18 2 and the program must output the following: 10010 Please i beg of you to send me a solution to this problem as soon as possible.

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• Objective-C initial values of created C-array

  - by kpower

  I create an array, similar to classic C (not NSArray or one of it's children) - something like BOOL i[5];. And I want to make all its values to be equal to NO. First of all, I didn't found any information about initial values of such arrays (I know that in classic C they will be undefined, but don't know exactly about Objective-C. I found info about classes and its inner data [after allocation, without initialization], but not about simple data types). And the second, if I should set array values manually - should I use memset(...); or something different? To prevent possible questions... I want to use this construction as array of temporary boolean flags and don't think that it is proved to use something like NSArray here.

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• Dictionary with delegate or switch?

  - by Samvel Siradeghyan

  Hi, I am writing a parser, which call some functions dependent on some value. I can implement this logic with simple switch like this switch(some_val) { case 0: func0(); break; case 1: func1(); break; } or with delegates and dictionary like this delegate void some_delegate(); Dictionary<int, some_delegate> some_dictionary = new Dictionary<int, some_delegate>(); some_dictionary[0] = func0; some_dictionary[1] = func1; some_dictionary[some_value].Invoke(); Are this two methods equal and which is preferred? Thanks.

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• Machine Learning Algorithm for Peer-to-Peer Nodes

  - by FreshCode

  I want to apply machine learning to a classification problem in a parallel environment. Several independent nodes, each with multiple on/off sensors, can communicate their sensor data with the goal of classifying an event as defined by a heuristic, training data or both. Each peer will be measuring the same data from their unique perspective and will attempt to classify the result while taking into account that any neighbouring node (or its sensors or just the connection to the node) could be faulty. Nodes should function as equal peers and determine the most likely classification by communicating their results. Ultimately each node should make a decision based on their own sensor data and their peers' data. If it matters, false positives are OK for certain classifications (albeit undesirable) but false negatives would be totally unacceptable. Given that each final classification will receive good or bad feedback, what would be an appropriate machine learning algorithm to approach this problem with if the nodes could communicate with each other to determine the most likely classification?

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• Strange behavior of I() in left-/right-hand side of formula

  - by adibender

  set.seed(98234) y <- rnorm(100) x <- rnorm(100) lm0 <- lm(y ~ x) lm1 <- lm(I(y) ~ I(x)) all work perfectly fine and I guess we can agree that ´lm0´ is what one would expect to happen. lm1 is equal to lm0 (judging by coefficients). So are set.seed(98234) lm3 <- lm(I(rnorm(100)) ~ rnorm(100)) set.seed(98234) lm4 <- lm(rnorm(100) ~ I(rnorm(100))) But when I() is on neither or both sides of the formula I don't get the results from above: set.seed(98234) lm2 <- lm(I(rnorm(100)) ~ I(rnorm(100))) set.seed(98234) lm5 <- lm(rnorm(100) ~ rnorm(100)) Any ideas why?

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• excel 2007 vba: how to refer to HPageBreaks

  - by notnot

  I'm trying to write a macro which can look into the list of horizontal page breaks that a worksheet keeps, and it seems like HPageBreaks should be exactly that. I can add or remove page breaks from it, but I can't seem to isolate the collection itself to look at its contents. Even adding a watch and looking at ActiveSheet.HPageBreaks just brings up a generic looking object with a count field equal to 0 regardless of existing page breaks. I'm really confused about this now. Is there any way to look into the existing page breaks within a sheet? A listing of what rows they occur on/between would be great.

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• Should one use < or <= in a for loop

  - by Eugene Katz

  If you had to iterate through a loop 7 times, would you use: for (int i = 0; i < 7; i++) or: for (int i = 0; i <= 6; i++) There are two considerations: performance readability For performance I'm assuming Java or C#. Does it matter if "less than" or "less than or equal to" is used? If you have insight for a different language, please indicate which. For readability I'm assuming 0-based arrays. UPD: My mention of 0-based arrays may have confused things. I'm not talking about iterating through array elements. Just a general loop. There is a good point below about using a constant to which would explain what this magic number is. So if I had "int NUMBER_OF_THINGS = 7" then "i <= NUMBER_OF_THINGS - 1" would look weird, wouldn't it.

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• Order Result in Sqlite

  - by saturngod

  In MySQL , my sql is like following SELECT * , IF( `Word` = 'sim', 1, IF( `Word` LIKE 'sim%', 2, IF( `Word` LIKE '%sim', 4, 3 ) ) ) AS `sort` FROM `dblist` WHERE `Word` LIKE '%sim%' ORDER BY `sort` , `Word` This sql is not working in SQlite. I want to do result order. SELECT * FROM dblist where word like 'sim' or word like 'sim%' or word like '%sim%' or word like '%sim' equal sim is a frist , sim% is second and %sim% is a thrid and then %sim is a last. Currently I can't sort like mysql in sqlite. How to change sql to order the result ?

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• UL+CSS for grid layout

  - by nailxx

  Hi all, I have a server-generated html like: <ul> <li><!-- few nested elements that form a block --></li> <li><!-- few nested elements that form anaother block --></li> <li><!-- etc, X times --></li> </ul> All blocks have known width 200px and unknown height. I want <li> to be arranged in table-like fashion like this: What I have for now is following css: li { display: block; width: 200px; float: left; margin: 10px; } All is fine except that columns don't get equal height. And in example above block #4 “snatch” at #1 and the result isn't what I'm trying to achieve: Is there any pure-CSS cross-browser way that will allow grid layout I want and will not enforce markup change?

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• Flex TextArea leading invalid

  - by Andreas

  Hi, When I set leading to 0 with Verdana (and others to) for a Flex TextArea I get strange results: fontsize - space between baselines 8 - 10 (125%) 10 - 12 (120%) 12 - 14 (117%) 14 - 17 (121%) 16 - 18 (113%) 18 - 22 (122%) 20 - 25 (125%) 25 - 31 (124%) shouldn't all of these be the same (should only be 100%)? Or least follow a pattern, because I can't se any. :( When i set leading to 0, the space between my baselines should be the same as the font size/height. This is not the case here. How do I know how to get the space between the baseline to be equal to the height of the font?

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