Search Results

Search found 6183 results on 248 pages for 'double brace initializati'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 3/248 | < Previous Page | 1 2 3 4 5 6 7 8 9 10 11 12  | Next Page >

  • method with two parameters which both need to be double dispatched

    - by mixm
    lets say i have a method which has two parameters. i have been implementing them as: if(aObj instance of Marble) { if(bObj instance of Bomb) { this.resolve((Marble)aObj,(Bomb)bObj); } } as you can see its not a very pretty solution. i plan to implement using double dispatching, but with two parameters which both need double dispatching, im afraid im a bit stumped. any ideas please. im implementing in java btw.

    Read the article

  • GCC problem with raw double type comparisons

    - by Monomer
    I have the following bit of code, however when compiling it with GCC 4.4 with various optimization flags I get some unexpected results when its run. #include <iostream> int main() { const unsigned int cnt = 10; double lst[cnt] = { 0.0 }; const double v[4] = { 131.313, 737.373, 979.797, 731.137 }; for(unsigned int i = 0; i < cnt; ++i) { lst[i] = v[i % 4] * i; } for(unsigned int i = 0; i < cnt; ++i) { double d = v[i % 4] * i; if(lst[i] != d) { std::cout << "error @ : " << i << std::endl; return 1; } } return 0; } when compiled with: "g++ -pedantic -Wall -Werror -O1 -o test test.cpp" I get the following output: "error @ : 3" when compiled with: "g++ -pedantic -Wall -Werror -O2 -o test test.cpp" I get the following output: "error @ : 3" when compiled with: "g++ -pedantic -Wall -Werror -O3 -o test test.cpp" I get no errors when compiled with: "g++ -pedantic -Wall -Werror -o test test.cpp" I get no errors I do not believe this to be an issue related to rounding, or epsilon difference in the comparison. I've tried this with Intel v10 and MSVC 9.0 and they all seem to work as expected. I believe this should be nothing more than a bitwise compare. If I replace the if-statement with the following: if (static_cast<long long int>(lst[i]) != static_cast<long long int>(d)), and add "-Wno-long-long" I get no errors in any of the optimization modes when run. If I add std::cout << d << std::endl; before the "return 1", I get no errors in any of the optimization modes when run. Is this a bug in my code, or is there something wrong with GCC and the way it handles the double type?

    Read the article

  • C int, float, double

    - by anon
    There are certain int values that a float can not represent. However, can a double represent all values a float can represent? (My intuition says yes, since double has more fractional bits & more exponent bits, but there might be some silly gotchas that I'm missing). Thanks!

    Read the article

  • asp.net mvc2 validate type double

    - by ile
    [MetadataType(typeof(Deal_Validation))] public partial class Deal { } public class Deal_Validation { [Required] public string Title { get; set; } public double? EstValue { set; get; } } How to validate EstValue (check if it is of type double?) Thanks

    Read the article

  • Actual long double precision does not agree with std::numeric_limits

    - by dmb
    Working on Mac OS X 10.6.2, Intel, with i686-apple-darwin10-g++-4.2.1, and compiling with the -arch x86_64 flag, I just noticed that while... std::numeric_limits<long double>::max_exponent10 = 4932 ...as is expected, when a long double is actually set to a value with exponent greater than 308, it becomes inf--ie in reality it only has 64bit precision instead of 80bit. Also, sizeof() is showing long doubles to be 16 bytes, which they should be. Finally, using gives the same results as . Does anyone know where the discrepancy might be? long double x = 1e308, y = 1e309; cout << std::numeric_limits::max_exponent10 << endl; cout << x << '\t' << y << endl; cout << sizeof(x) << endl; gives 4932 1e+308 inf 16

    Read the article

  • HTML Double Click Selection Oddity

    - by Aren B
    I didn't post this on DocType because it's not really a design thing, the visual representation isn't my problem, the behaviour is. I'm sorry if this is misplaced but I don't feel it's a designer issue. The following DOM: <ul style="overflow: hidden;"> <li style="float: left;"><strong>SKU:</strong>123123</li> <li style="float: left;"><strong>ILC:</strong>asdasdasdasd</li> </ul> Or <div style="overflow: hidden;"> <div style="float: left; width: 49%"><strong>SKU:</strong>123123</div> <div style="margin-left: 50%; width: auto;"><strong>ILC:</strong>asdasdasdasd</div> </div> Or <p> <span><strong>SKU:</strong>123123</span> <span><strong>ILC:</strong>asdasdasdasd</span> </p> All present me an odd problem in IE 6 IE 7 Firefox 3.x Chrome But not in IE 8 When you double click '123123' after 'SKU:', it selects '123123' AND 'ILC:' from the next dom element. Take any text on this page (here in SO), double click a word, it only selects THAT WORD, even in the middle of a paragraph. These examples have dom elements closing them, anyone know why this is happening. My fellow employees use the 'double click' mechanism to select the relevant product ID's to do their job, and this dosen't make sense to me what soever.

    Read the article

  • How to convert an object into a double?

    - by george t.
    I am working on VS C# on the following code, which converts an user input math expression and computes it. MSScriptControl.ScriptControl sc = new MSScriptControl.ScriptControl(); sc.Language = "VBScript"; sc.ExecuteStatement( "function pi\n" + "pi = 3.14159265\n" + "end function"); sc.ExecuteStatement( "function e\n" + "e = exp(1)\n" + "end function"); expression = textBox1.Text.ToString(); expression = expression.Replace("x", i.ToString()); object y = sc.Eval(expression); string k = y.ToString(); double result = double.Parse(k); While this outputs onto the console with the correct result, I want to use the values to make a graph of the function user inputs and it's not doing it correctly. Thank you for your help.

    Read the article

  • Double Free inside of a destructor upon adding to a vector

    - by Shawn B
    Hey, I am working on a drum machine, and am having problems with vectors. Each Sequence has a list of samples, and the samples are ordered in a vector. However, when a sample is push_back on the vector, the sample's destructor is called, and results in a double free error. Here is the Sample creation code: class XSample { public: Uint8 Repeat; Uint8 PlayCount; Uint16 Beats; Uint16 *Beat; Uint16 BeatsPerMinute; XSample(Uint16 NewBeats,Uint16 NewBPM,Uint8 NewRepeat); ~XSample(); void GenerateSample(); void PlaySample(); }; XSample::XSample(Uint16 NewBeats,Uint16 NewBPM,Uint8 NewRepeat) { Beats = NewBeats; BeatsPerMinute = NewBPM; Repeat = NewRepeat-1; PlayCount = 0; printf("XSample Construction\n"); Beat = new Uint16[Beats]; } XSample::~XSample() { printf("XSample Destruction\n"); delete [] Beat; } And the 'Dynamo' code that creates each sample in the vector: class XDynamo { public: std::vector<XSample> Samples; void CreateSample(Uint16 NewBeats,Uint16 NewBPM,Uint8 NewRepeat); }; void XDynamo::CreateSample(Uint16 NewBeats,Uint16 NewBPM,Uint8 NewRepeat) { Samples.push_back(XSample(NewBeats,NewBPM,NewRepeat)); } Here is main(): int main() { XDynamo Dynamo; Dynamo.CreateSample(4,120,2); Dynamo.CreateSample(8,240,1); return 0; } And this is what happens when the program is run: Starting program: /home/shawn/dynamo2/dynamo [Thread debugging using libthread_db enabled] XSample Construction XSample Destruction XSample Construction XSample Destruction *** glibc detected *** /home/shawn/dynamo2/dynamo: double free or corruption (fasttop): 0x0804d008 *** However, when the delete [] is removed from the destructor, the program runs perfectly. What is causing this? Any help is greatly appreciated.

    Read the article

  • ArrayIndexOutOfBoundsException double array size

    - by Andy
    I'm going to preface this question with this statement: I know that I can easily handle this problem by reading the amount of lines in a file and making an array that size. I am not allowed to do this. Anyway, here is my question. I need to double my array's size whenever my program encounters an ArrayIndexOutOfBoundsException and then copy all the previous read in information into the larger array. Here is my code public static void main(String[] args) throws IOException { Scanner inScan, fScan = null; int [] A = new int[5]; inScan = new Scanner(System.in); System.out.print("Please enter the file to read from: "); while(true) { try{ String fName = inScan.nextLine(); fScan = new Scanner(new File(fName)); break; } catch (FileNotFoundException ex) { System.out.println("Your file is invalid -- please re-enter"); } } String nextItem; int nextInt = 0; int i = 0; while (fScan.hasNextLine()) { try { nextItem = fScan.nextLine(); nextInt = Integer.parseInt(nextItem); A[i] = nextInt; i++; } catch (NumberFormatException e) { System.out.println("Found an invalid int -- ignored"); } catch (ArrayIndexOutOfBoundsException e) { //double the size of array A until //copy all previous read in information to the larger array } } System.out.println("Here are your " + i + " items:"); for (int j = 0; j < i; j++) { System.out.println(A[j] + " "); } } }

    Read the article

  • Hotkey for double-click highlight?

    - by Steven Wright
    I'm working in Eclipse and find myself always replacing multiple copies of the same word, but I always have to take my hands off the keyboard and screen to get the mouse, hover over the word, double click to select, and then copy or rewrite the word. Is there any way I can just move the cursor inside the word and hit some hotkey that would highlight it? Seems like this would be a big timesaver. Or if there's a way to create a hotkey that would be perfect too.

    Read the article

  • Convert Delphi Real48 to C# double

    - by mjmcloug
    Hey, I need to be able to convert from a Delphi Real48 to C# double. I've got the bytes I need to convert but am looking for an elegant solution. to the problem. Anybody out there had to do this before? I'm needing to do the conversion in C# Thanks in advance

    Read the article

  • Problem with button addition when double clicking a command label

    - by mistique
    Hy, I got an intersting problem which I stumbled upon. When I double click a label in a JLabel I want to add another button in a JPanel, its a shorter way to make a dragg and drop. The problem is that the button doesn't appears only if i'll position the mouse on the area the button should appear. Why does it happens this way? Anyone got a clue? Are there some thread related issues involved? Thanks in advance

    Read the article

  • .NET's double.NaN - how does this counterintuitive feature work?

    - by GeReV
    I stumbled upon the definition of double.NaN in code: public const double NaN = (double)0.0 / (double)0.0; This is done similarly in PositiveInfinity and NegativeInfinity. double.IsNaN (with removing a few #pragmas and comments) is defined as: [Pure] [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] public static bool IsNaN(double d) { if (d != d) { return true; } else { return false; } } This is, by far, the most counterintuitive thing I have ever seen in the .NET framework. How is 0.0 / 0.0 represented "behind the scenes"? How can division by 0 be possible in double, and why does NaN != NaN?

    Read the article

  • Linq, double left join and double count

    - by Fabian Vilers
    Hi! I'm looking to translate this SQL statement to a well working & performant LINQ command. I've managed to have the first count working using the grouping count and key members, but don't know how to get the second count. select main.title, count(details.id) as details, count(messages.id) as messages from main left outer join details on main.id = details.mainid left outer join messages on details.id = messages.detailid group by main.title Any advice is welcome! Fabian

    Read the article

  • Double-byte characters in querystring using PHP

    - by Jeffrey Berthiaume
    I'm trying to figure out how to create personalized urls for double-byte languages. For example, this url from Amazon Japan has Japanese characters within the querystring (specifically, the path): http://www.amazon.co.jp/????????-DVD-???/dp/B00005R5J3/ref=sr_1_3?ie=UTF8&s=dvd&qid=1269891925&sr=8-3 What I would like to do is have: http://www.mysite.com/???????? or even http://www.mysite.com/index.php?name=???????? be able to properly decode the $GET[name] string. I think I have tried all of the urldecode and utf8_decode possibilities, but I just get gibberish in response. This all works fine in a form $_POST, but I need these urls to be emailable...

    Read the article

  • ASP.Net double-click problem

    - by David Archer
    Hi there, having a slight problem with an ASP.net page of mine. If a user were to double click on a "submit" button it will write to the database twice (i.e. carry out the 'onclick' method on the imagebutton twice) How can I make it so that if a user clicks on the imagebutton, just the imagebutton is disabled? I've tried: <asp:ImageButton runat="server" ID="VerifyStepContinue" ImageUrl=image src ToolTip="Go" TabIndex="98" CausesValidation="true" OnClick="methodName" OnClientClick="this.disabled = true;" /> But this OnClientClick property completely stops the page from being submitted! Any help? Sorry, yes, I do have Validation controls... hence the icky problem.

    Read the article

  • string parsing to double fails in C++

    - by helixed
    Here's a fun one I've been trying to figure out. I have the following program: #include <iostream> #include <string> #include <sstream> using namespace std; int main(int argc, char *argv[]) { string s("5"); istringstream stream(s); double theValue; stream >> theValue; cout << theValue << endl; cout << stream.fail(); } The output is: 0 1 I don't understand why this is failing. Could somebody please tell me what I'm doing wrong? Thanks, helixed

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 1 2 3 4 5 6 7 8 9 10 11 12  | Next Page >