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  • Does Google App Engine allow creation of files and folders on the server ?

    - by Frank
    I know Google App Engine offers free space, but I wonder if it's for storing data in it's database only or does it also allow me to create files and directories on the server side to store my data ? For instance can I use the following method to save file ? public static void saveFile(String File_Path,StringBuffer Str_Buf,boolean Append) { FileOutputStream fos=null; BufferedOutputStream bos=null; try { fos=new FileOutputStream(File_Path,Append); bos=new BufferedOutputStream(fos); for (int j=0;j<Str_Buf.length();j++) bos.write(Str_Buf.charAt(j)); } catch (Exception e) { e.printStackTrace(); } finally { try { if (bos!=null) { bos.close(); bos=null; } if (fos!=null) { fos.close(); fos=null; } } catch (Exception ex) { ex.printStackTrace(); } } } Frank

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  • Windows Impersonation failed

    - by skprocks
    I am using following code to implement impersonation for the particular windows account,which is failing.Please help. using System.Security.Principal; using System.Runtime.InteropServices; public partial class Source_AddNewProduct : System.Web.UI.Page { [DllImport("advapi32.dll", SetLastError = true)] static extern bool LogonUser( string principal, string authority, string password, LogonSessionType logonType, LogonProvider logonProvider, out IntPtr token); [DllImport("kernel32.dll", SetLastError = true)] static extern bool CloseHandle(IntPtr handle); enum LogonSessionType : uint { Interactive = 2, Network, Batch, Service, NetworkCleartext = 8, NewCredentials } enum LogonProvider : uint { Default = 0, // default for platform (use this!) WinNT35, // sends smoke signals to authority WinNT40, // uses NTLM WinNT50 // negotiates Kerb or NTLM } //impersonation is used when user tries to upload an image to a network drive protected void btnPrimaryPicUpload_Click1(object sender, EventArgs e) { try { string mDocumentExt = string.Empty; string mDocumentName = string.Empty; HttpPostedFile mUserPostedFile = null; HttpFileCollection mUploadedFiles = null; string xmlPath = string.Empty; FileStream fs = null; StreamReader file; string modify; mUploadedFiles = HttpContext.Current.Request.Files; mUserPostedFile = mUploadedFiles[0]; if (mUserPostedFile.ContentLength >= 0 && Path.GetFileName(mUserPostedFile.FileName) != "") { mDocumentName = Path.GetFileName(mUserPostedFile.FileName); mDocumentExt = Path.GetExtension(mDocumentName); mDocumentExt = mDocumentExt.ToLower(); if (mDocumentExt != ".jpg" && mDocumentExt != ".JPG" && mDocumentExt != ".gif" && mDocumentExt != ".GIF" && mDocumentExt != ".jpeg" && mDocumentExt != ".JPEG" && mDocumentExt != ".tiff" && mDocumentExt != ".TIFF" && mDocumentExt != ".png" && mDocumentExt != ".PNG" && mDocumentExt != ".raw" && mDocumentExt != ".RAW" && mDocumentExt != ".bmp" && mDocumentExt != ".BMP" && mDocumentExt != ".TIF" && mDocumentExt != ".tif") { Page.RegisterStartupScript("select", "<script language=" + Convert.ToChar(34) + "VBScript" + Convert.ToChar(34) + "> MsgBox " + Convert.ToChar(34) + "Please upload valid picture file format" + Convert.ToChar(34) + " , " + Convert.ToChar(34) + "64" + Convert.ToChar(34) + " , " + Convert.ToChar(34) + "WFISware" + Convert.ToChar(34) + "</script>"); } else { int intDocLen = mUserPostedFile.ContentLength; byte[] imageBytes = new byte[intDocLen]; mUserPostedFile.InputStream.Read(imageBytes, 0, mUserPostedFile.ContentLength); //xmlPath = @ConfigurationManager.AppSettings["ImagePath"].ToString(); xmlPath = Server.MapPath("./../ProductImages/"); mDocumentName = Guid.NewGuid().ToString().Replace("-", "") + System.IO.Path.GetExtension(mUserPostedFile.FileName); //if (System.IO.Path.GetExtension(mUserPostedFile.FileName) == ".jpg") //{ //} //if (System.IO.Path.GetExtension(mUserPostedFile.FileName) == ".gif") //{ //} mUserPostedFile.SaveAs(xmlPath + mDocumentName); //Remove commenting till upto stmt xmlPath = "./../ProductImages/"; to implement impersonation byte[] bytContent; IntPtr token = IntPtr.Zero; WindowsImpersonationContext impersonatedUser = null; try { // Note: Credentials should be encrypted in configuration file bool result = LogonUser(ConfigurationManager.AppSettings["ServiceAccount"].ToString(), "ad-ent", ConfigurationManager.AppSettings["ServiceAccountPassword"].ToString(), LogonSessionType.Network, LogonProvider.Default, out token); if (result) { WindowsIdentity id = new WindowsIdentity(token); // Begin impersonation impersonatedUser = id.Impersonate(); mUserPostedFile.SaveAs(xmlPath + mDocumentName); } else { throw new Exception("Identity impersonation has failed."); } } catch { throw; } finally { // Stop impersonation and revert to the process identity if (impersonatedUser != null) impersonatedUser.Undo(); // Free the token if (token != IntPtr.Zero) CloseHandle(token); } xmlPath = "./../ProductImages/"; xmlPath = xmlPath + mDocumentName; string o_image = xmlPath; //For impersoantion uncomment this line and comment next line //string o_image = "../ProductImages/" + mDocumentName; ViewState["masterImage"] = o_image; //fs = new FileStream(xmlPath, FileMode.Open, FileAccess.Read); //file = new StreamReader(fs, Encoding.UTF8); //modify = file.ReadToEnd(); //file.Close(); //commented by saurabh kumar 28may'09 imgImage.Visible = true; imgImage.ImageUrl = ViewState["masterImage"].ToString(); img_Label1.Visible = false; } //e.Values["TemplateContent"] = modify; //e.Values["TemplateName"] = mDocumentName.Replace(".xml", ""); } } catch (Exception ex) { ExceptionUtil.UI(ex); Response.Redirect("errorpage.aspx"); } } } The code on execution throws system.invalidoperation exception.I have provided full control to destination folder to the windows service account that i am impersonating.

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  • input file cannot be found

    - by Eric Smith
    I am just messing around with reading input files with java until I got stumped at the most basic of steps... finding the input file! The input.txt file is in the same directory as my class file that is calling it yet eclipse still gives me an error that it cant be found: "Exception in thread "main" java.lang.Error: Unresolved compilation problem: Unhandled exception type FileNotFoundException" My code: package pa; import java.util.Scanner; public class Project { public static void main(String[] args) { java.io.File file = new java.io.File("input.txt"); System.out.println(file.getAbsolutePath()); Scanner input = new Scanner(file); } } input.txt is in the same package, same folder and everything. I'm confused :(

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  • two threads acting on the same runnable

    - by Eslam
    Given: public class Thread1 { int x = 0; public class Runner implements Runnable { public void run() { int current = 0; for (int i = 0; i < 4; i++) { current = x; System.out.print(current + " "); x = current + 2; } } } public void go() { Runnable r1 = new Runner(); new Thread(r1).start(); new Thread(r1).start(); } public static void main(String[] args) { new Thread1().go(); } } Which two are possible results? (Choose two) A. 0, 2, 4, 4, 6, 8, 10, 6, B. 0, 2, 4, 6, 8, 10, 2, 4, C. 0, 2, 4, 6, 8, 10, 12, 14, D. 0, 0, 2, 2, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12, 14, 14, E. 0, 2, 4, 6, 8, 10, 12, 14, 0, 2, 4, 6, 8, 10, 12, 14, i chosed A,B but i'm not certain is those is the true or not.

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  • Copy Rows in a One to Many with LINQ (2 SQL)

    - by Refracted Paladin
    I have a table that stores a bunch of diagnosis for a single plan. When the users create a new plan I need to copy over all existing diagnosis's as well. I had thought to try the below but this is obviously not correct. I am guessing that I will need to loop through my oldDiagnosis part, but how? Thanks! My Attempt so far... public static void CopyPlanDiagnosis(int newPlanID, int oldPlanID) { using (var context = McpDataContext.Create()) { var oldDiagnosis = from planDiagnosi in context.tblPlanDiagnosis where planDiagnosi.PlanID == oldPlanID select planDiagnosi; var newDiagnosis = new tblPlanDiagnosi { PlanID = newPlanID, DiagnosisCueID = oldDiagnosis.DiagnosisCueID, DiagnosisOther = oldDiagnosis.DiagnosisOther, AdditionalInfo = oldDiagnosis.AdditionalInfo, rowguid = Guid.NewGuid() }; context.tblPlanDiagnosis.InsertOnSubmit(newDiagnosis); context.SubmitChanges(); } }

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  • How to redefine symbol names in objects with RVCT?

    - by Batuu
    I currently develop a small OS for an embedded platform based on a ARM Cortex-M3 microcontroller. The OS provides an API for customer application development. The OS kernel and the API is compiled into a static lib by the ARMCC compiler and customer can link his application against it. The lib and the containing object files offer the complete list of symbols used in kernel. To "protect" the kernel and its inner states from extern hooking into obvious variables and functions, I would like to do some easy obfuscation by renaming the symbols randomly. The GNU binutils seems to do this by calling objcopy with the --redefine-sym flag. The GNU binutils cannot read the ARMCC / RVCT objects. Is there any solution to do this kind of obfuscation with RVCT?

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  • How to close the Facebook pop-up login window after the user Connects?

    - by alex
    Below is my code. For some reason, after the user logs into the little pop-up window, the little window will redirect back to '/" with a lot of session JSON junk at the end of the URL. How do I make it so that the little window closes, and my parent window refreshes? <script src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US" type="text/javascript"></script> <fb:login-button v="2" onlogin='window.location("/test");' size="medium">Connect</fb:login-button> <script type="text/javascript">FB.init("XXXXX",'/xd_receiver.htm');</script>

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  • cache and web-farm

    - by user285336
    I need to deploy my web-application on web-farm. Application has the following strings: public static X509Certificate2 GetIdCertificate() { string cacheKey = "Neogov.Insight.IdentityProvider.PrivateKey"; if (HttpContext.Current.Cache[cacheKey] == null) { //Load new. HttpContext.Current.Cache[cacheKey] = new X509Certificate2( System.Web.HttpContext.Current.Server.MapPath("~/") + "\\ID\\" + Neogov.Insight.IdentityProvider.BLL.IdConfig.Instance.IdPKeyFile, Neogov.Insight.IdentityProvider.BLL.IdConfig.Instance.IdPKeyPassword, X509KeyStorageFlags.MachineKeySet); } return (X509Certificate2)HttpContext.Current.Cache[cacheKey]; } will it work or not? If not then how to solve and what is solution? Thanks

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  • Unable to call WMP's controls.play() function in VisualBasic

    - by A.J.
    I have the following code: http://pastebin.com/EgjbzqA2 which is basically just a stripped down version of http://www.dreamincode.net/forums/topic/57357-mymusic-player/. I want the program to play one file repeatedly, however, this function doesn't work for some reason. The program plays each file once and then stops. Private Sub Player3_PlayStateChange(ByVal NewState As Integer) Handles Player3.PlayStateChange Static Dim PlayAllowed As Boolean = True Select Case CType(NewState, WMPLib.WMPPlayState) Case WMPLib.WMPPlayState.wmppsReady If PlayAllowed Then Player3.controls.play() End If Case WMPLib.WMPPlayState.wmppsMediaEnded ' Start protection (without it next wouldn't play PlayAllowed = False ' Play track Player3.controls.play() ' End Protection PlayAllowed = True updatePlayer() End Select End Sub

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  • The type or namespace name 'DefaultTemplateLexer' could not be found

    - by user310291
    The official tutorial from http://www.antlr.org/wiki/display/ST/Five+minute+Introduction doesn't work because of DefaultTemplateLexer, how to fix ? using System; using Antlr.StringTemplate; class Script { static public void Main(string[] args) { StringTemplateGroup group = new StringTemplateGroup("myGroup", @"C:\Tutorials\stringtemplate", typeof(DefaultTemplateLexer)); StringTemplate helloAgain = group.GetInstanceOf("homepage"); helloAgain.SetAttribute("title", "Welcome To StringTemplate"); helloAgain.SetAttribute("name", "World"); helloAgain.SetAttribute("friends", "Terence"); helloAgain.SetAttribute("friends", "Kunle"); helloAgain.SetAttribute("friends", "Micheal"); helloAgain.SetAttribute("friends", "Marq"); Console.Out.WriteLine(helloAgain.ToString()); } }

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  • Logic differences in C and Java

    - by paragjain16
    Compile and run this code in C #include <stdio.h> int main() { int a[] = {10, 20, 30, 40, 50}; int index = 2; int i; a[index++] = index = index + 2; for(i = 0; i <= 4; i++) printf("%d\n", a[i]); } Output : 10 20 4 40 50 Now for the same logic in Java class Check { public static void main(String[] ar) { int a[] = {10, 20, 30, 40, 50}; int index = 2; a[index++] = index = index + 2; for(int i = 0; i <= 4; i++) System.out.println(a[i]); } } Output : 10 20 5 40 50 Why is there output difference in both languages, output is understandable for Java but I cannot understand output in C One more thing, if we apply the prefix ++ operator, we get the same result in both languages, why?

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  • Sorting an arraylist in Java language

    - by Computeristic
    Hi, I have an arraylist set up. I have input instuctions set up too, so that the user can enter one string, then one integer, then one string (the first name, the age, and the last name). I need to sort the arraylist by the last name. The code I have entered so far is all under the main method:- public static void main(String[] args) { Name Name[] = new Name[50]; int count = 0; for (int i=0; i<50; i++) NewName[i] = new Name(); //ADD NEW TO ARRAYLIST NAME String FName = JOptionPane.showInputDialog("first name"); int age = Integer.parseInt(JOptionPane.showInputDialog("age")); String LName = JOptionPane.showInputDialog("last name"); NewName[count] = new Name(FName, age, LName); count = count++; } //ITEMS SORT BY LAST NAME //CODE FOR SORT GOES HERE

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  • jsFunction pass data to backingbean

    - by deilig
    I have a javascript that is calling a function addData(param1,param2,param3,param4) which is calling addClip at the end And I need to pass those to a backing bean. <a4j:form> <a4j:jsFunction name="addClip" action="#{backingBean.goGo}"> <a4j:actionparam name="param1" assignTo="#{backingBean.param1}"/> </a4j:jsFunction> </a4j:form> But I can't seem to pass any values to the backingbean. I've even tried setting a static value for the actionparam. But when I try to do a Systemout on the setParam1 method it only prints out null. Have I missed anything important?

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  • PHP OOP properity constant usage

    - by Misiur
    Hi there. I'm really new to OOP. I'm even not a newbie - I'm noob. So. I want to transfer my pseudo-CMS from "normal" programming, into OOP programming system. And so: private static $dsn = DB_TYPE.':host='.DB_HOST.';dbname='.DB_NAME; What here causes problem? Usage of constraints? I don't know. My editor (aptana studio) shows error after 1 constant. Thanks

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  • WPF passing the Int argument to a data object provider method

    - by SAD
    Hi, I'm trying to produce a master/detail datagrid view. I'm using object data providers. Now I have seen many examples when the argument of a method for returning the records for the detail view is a string, like in this example: <!-- the orders datasource --> <ObjectDataProvider x:Key="OrdersDataProvider" ObjectType="{x:Type local:OrdersDataProvider}"/> <ObjectDataProvider x:Key="Orders" MethodName="GetOrdersByCustomer" ObjectInstance="{StaticResource OrdersDataProvider}" > <ObjectDataProvider.MethodParameters> <x:Static Member="system:String.Empty"/> </ObjectDataProvider.MethodParameters> </ObjectDataProvider> But in my case, the argument that I want to pass is the int ID not the string. Can I still somehow use the object data provider to return all the records from the database for the detail view if the argument passed to a method has to be an int? How could it be implemented in MVVM? Thanks a lot for any advice1

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  • How can I capture multiple matches from the same Perl regex?

    - by Sho Minamimoto
    I'm trying to parse a single string and get multiple chunks of data out from the same string with the same regex conditions. I'm parsing a single HTML doc that is static (For an undisclosed reason, I can't use an HTML parser to do the job.) I have an expression that looks like: $string =~ /\<img\ssrc\="(.*)"/; and I want to get the value of $1. However, in the one string, there are many img tags like this, so I need something like an array returned (@1?) is this possible?

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  • Auto-hide JMenuBar

    - by PeterMmm
    When i run the code above the frame's menu bar come up when the mouse moves to the upper part of the window. The problem is when i open the menu but do not select any item and move out the mouse the menu bar get invisible but the items stay on screen. public class Test extends JFrame { public Test() { setLayout(new BorderLayout()); setSize(300, 300); JMenuBar mb = new JMenuBar(); setJMenuBar(mb); mb.setVisible(false); JMenu menu = new JMenu("File"); mb.add(menu); menu.add(new JMenuItem("Item-1")); menu.add(new JMenuItem("Item-2")); addMouseMotionListener(new MouseAdapter() { @Override public void mouseMoved(MouseEvent e) { getJMenuBar().setVisible(e.getY() < 50); } }); } public static void main(String args[]) { new Test().setVisible(true); } }

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  • How to Create a Generic Method and Create Instance of The Type

    - by DaveDev
    Hi Guys I want to create a helper method that I can imagine has a signature similar to this: public static MyHtmlTag GenerateTag<T>(this HtmlHelper htmlHelper, object obj) { // how do I create an instance of MyAnchor? // this returns MyAnchor, which has a MyHtmlTag base } When I invoke the method, I want to specify a type of MyHtmlTag, such as MyAnchor, e.g.: <%= Html.GenerateTag<MyAnchor>(obj) %> or <%= Html.GenerateTag<MySpan>(obj) %> Can someone show me how to create this method? Also, what's involved in creating an instance of the type I specified? Activator.CreateInstance()? Thanks Dave

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  • C# 'is' type check on struct - odd .NET 4.0 x86 optimization behavior

    - by Jacob Stanley
    Since upgrading to VS2010 I'm getting some very strange behavior with the 'is' keyword. The program below (test.cs) outputs True when compiled in debug mode (for x86) and False when compiled with optimizations on (for x86). Compiling all combinations in x64 or AnyCPU gives the expected result, True. All combinations of compiling under .NET 3.5 give the expected result, True. I'm using the batch file below (runtest.bat) to compile and test the code using various combinations of compiler .NET framework. Has anyone else seen these kind of problems under .NET 4.0? Does everyone else see the same behavior as me on their computer when running runtests.bat? #@$@#$?? Is there a fix for this? test.cs using System; public class Program { public static bool IsGuid(object item) { return item is Guid; } public static void Main() { Console.Write(IsGuid(Guid.NewGuid())); } } runtest.bat @echo off rem Usage: rem runtest -- runs with csc.exe x86 .NET 4.0 rem runtest 64 -- runs with csc.exe x64 .NET 4.0 rem runtest v3.5 -- runs with csc.exe x86 .NET 3.5 rem runtest v3.5 64 -- runs with csc.exe x64 .NET 3.5 set version=v4.0.30319 set platform=Framework for %%a in (%*) do ( if "%%a" == "64" (set platform=Framework64) if "%%a" == "v3.5" (set version=v3.5) ) echo Compiler: %platform%\%version%\csc.exe set csc="C:\Windows\Microsoft.NET\%platform%\%version%\csc.exe" set make=%csc% /nologo /nowarn:1607 test.cs rem CS1607: Referenced assembly targets a different processor rem This happens if you compile for x64 using csc32, or x86 using csc64 %make% /platform:x86 test.exe echo =^> x86 %make% /platform:x86 /optimize test.exe echo =^> x86 (Optimized) %make% /platform:x86 /debug test.exe echo =^> x86 (Debug) %make% /platform:x86 /debug /optimize test.exe echo =^> x86 (Debug + Optimized) %make% /platform:x64 test.exe echo =^> x64 %make% /platform:x64 /optimize test.exe echo =^> x64 (Optimized) %make% /platform:x64 /debug test.exe echo =^> x64 (Debug) %make% /platform:x64 /debug /optimize test.exe echo =^> x64 (Debug + Optimized) %make% /platform:AnyCPU test.exe echo =^> AnyCPU %make% /platform:AnyCPU /optimize test.exe echo =^> AnyCPU (Optimized) %make% /platform:AnyCPU /debug test.exe echo =^> AnyCPU (Debug) %make% /platform:AnyCPU /debug /optimize test.exe echo =^> AnyCPU (Debug + Optimized) Test Results When running the runtest.bat I get the following results on my Win7 x64 install. > runtest 32 v4.0 Compiler: Framework\v4.0.30319\csc.exe False => x86 False => x86 (Optimized) True => x86 (Debug) False => x86 (Debug + Optimized) True => x64 True => x64 (Optimized) True => x64 (Debug) True => x64 (Debug + Optimized) True => AnyCPU True => AnyCPU (Optimized) True => AnyCPU (Debug) True => AnyCPU (Debug + Optimized) > runtest 64 v4.0 Compiler: Framework64\v4.0.30319\csc.exe False => x86 False => x86 (Optimized) True => x86 (Debug) False => x86 (Debug + Optimized) True => x64 True => x64 (Optimized) True => x64 (Debug) True => x64 (Debug + Optimized) True => AnyCPU True => AnyCPU (Optimized) True => AnyCPU (Debug) True => AnyCPU (Debug + Optimized) > runtest 32 v3.5 Compiler: Framework\v3.5\csc.exe True => x86 True => x86 (Optimized) True => x86 (Debug) True => x86 (Debug + Optimized) True => x64 True => x64 (Optimized) True => x64 (Debug) True => x64 (Debug + Optimized) True => AnyCPU True => AnyCPU (Optimized) True => AnyCPU (Debug) True => AnyCPU (Debug + Optimized) > runtest 64 v3.5 Compiler: Framework64\v3.5\csc.exe True => x86 True => x86 (Optimized) True => x86 (Debug) True => x86 (Debug + Optimized) True => x64 True => x64 (Optimized) True => x64 (Debug) True => x64 (Debug + Optimized) True => AnyCPU True => AnyCPU (Optimized) True => AnyCPU (Debug) True => AnyCPU (Debug + Optimized) tl;dr

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  • How to determine whether a class has a particular templated member function?

    - by Aozine
    I was wondering if it's possible to extend the SFINAE approach to detecting whether a class has a certain member function (as discussed here: "Is there a Technique in C++ to know if a class has a member function of a given signature?" http://stackoverflow.com/questions/87372/is-there-a-technique-in-c-to-know-if-a-class-has-a-member-function-of-a-given-s ) to support templated member functions? E.g. to be able to detect the function foo in the following class: struct some_class { template < int _n > void foo() { } }; I thought it might be possible to do this for a particular instantiation of foo, (e.g. check to see if void foo< 5 >() is a member) as follows: template < typename _class, int _n > class foo_int_checker { template < typename _t, void (_t::*)() > struct sfinae { }; template < typename _t > static big test( sfinae< _t, &_t::foo< _n > > * ); template < typename _t > static small test( ... ); public: enum { value = sizeof( test< _class >( 0 ) ) == sizeof( big ) }; }; Then do foo_int_checker< some_class, 5 >::value to check whether some_class has the member void foo< 5 >(). However on MSVC++ 2008 this always returns false while g++ gives the following syntax errors at the line test( sfinae< _t, &_t::foo< _n > > ); test.cpp:24: error: missing `>' to terminate the template argument list test.cpp:24: error: template argument 2 is invalid test.cpp:24: error: expected unqualified-id before '<' token test.cpp:24: error: expected `,' or `...' before '<' token test.cpp:24: error: ISO C++ forbids declaration of `parameter' with no type Both seem to fail because I'm trying to get the address of a template function instantiation from a type that is itself a template parameter. Does anyone know whether this is possible or if it's disallowed by the standard for some reason? EDIT: It seems that I missed out the ::template syntax to get g++ to compile the above code correctly. If I change the bit where I get the address of the function to &_t::template foo< _n > then the program compiles, but I get the same behaviour as MSVC++ (value is always set to false). If I comment out the ... overload of test to force the compiler to pick the other one, I get the following compiler error in g++: test.cpp: In instantiation of `foo_int_checker<A, 5>': test.cpp:40: instantiated from here test.cpp:32: error: invalid use of undefined type `class foo_int_checker<A, 5>' test.cpp:17: error: declaration of `class foo_int_checker<A, 5>' test.cpp:32: error: enumerator value for `value' not integer constant where line 32 is the enum { value = sizeof( test< _class >( 0 ) ) == sizeof( big ) }; line. Unfortunately this doesn't seem to help me diagnose the problem :(. MSVC++ gives a similar nondescript error: error C2770: invalid explicit template argument(s) for 'clarity::meta::big checker<_checked_type>::test(checker<_checked_type>::sfinae<_t,&_t::template foo<5>> *)' on the same line. What's strange is that if I get the address from a specific class and not a template parameter (i.e. rather than &_t::template foo< _n > I do &some_class::template foo< _n >) then I get the correct result, but then my checker class is limited to checking a single class (some_class) for the function. Also, if I do the following: template < typename _t, void (_t::*_f)() > void f0() { } template < typename _t > void f1() { f0< _t, &_t::template foo< 5 > >(); } and call f1< some_class >() then I DON'T get a compile error on &_t::template foo< 5 >. This suggests that the problem only arises when getting the address of a templated member function from a type that is itself a template parameter while in a SFINAE context. Argh!

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  • Source control on internet i.e. no private networks.

    - by Kavitesh Singh
    Me and my friend are in the process of starting a small project and want to implement a source control. Now both are located in different cities and can communicate using internet for file sharing etc. I need an online hosting solution or any way where i can maintain the source code repository for both of us to check in/out. As of now we want to maintain it as private project. Does sourceforge allow hosting projects which would not be opensource? One option i was thinking, to obtain a static IP form ISP and host the repository.But that mean my system needs to be online when my friend wants to checkin/out or do some diff with old version code. Secondly, would SVN or git be a better choice in such a situation. I have no experience in git/mercurial as of now.

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  • NHibernate: insert multiple items at once

    - by Gart
    Hello, all! I am learning NHibernate now and I would like to know is it possible to save multiple objects to database in one operation. For example, consider this test code private static void SaveTestBillNamesInSession(ISession session, params string[] names) { var bills = from name in names select new Bill { Name = name, DateRegistered = DateTime.Now, }; foreach (var bill in bills) session.SaveOrUpdate(bill); } This loop here generates many INSERT statements which may be sub-optimal in SQL Server 2008 which allows to include multiple data rows in one INSERT statement. Is it possible to rewrite this code to make use of this functionality - insert all the data in one operation?

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  • Empty page instead of custom tomcat error page

    - by Alexander
    My setting: Apache 2.2 + Tomcat 6.0 @ Windows 2008 R2 64bit static webpages: / servlet: /foo tomcat and apache are connected by mod_jk 404.jsp is placed in tomcat\webapps\ROOT tomcat\conf\web.xml: <error-page> <error-code>404</error-code> <location>/404.jsp</location> </error-page> apache\conf\extra\httpd-ssl.conf: JkMount /foo/* worker1 JkMount /404.jsp worker1 When I open https://...../404.jsp my custom error page is displayed. But when I open https://...../foo/nonexisting.html an empty page is displayed. If I remove the <error-page>...</error-page> code from web.xml and open https://...../foo/nonexisting.html then tomcats own 404 is displayed. Any hints?

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  • How to replace a regexp group with a post proceed value?

    - by Pentium10
    I have this code to public static String ProcessTemplateInput(String input, int count) { Pattern pattern = Pattern.compile("\\{([^\\}]+)\\}"); Matcher matcher = pattern.matcher(input); while (matcher.find()) { String newelem=SelectRandomFromTemplate(matcher.group(1), count); } return input; } Input is: String s1 = "planets {Sun|Mercury|Venus|Earth|Mars|Jupiter|Saturn|Uranus|Neptune}{?|!|.} Is this ok? "; Output example: String s2="planets Sun, Mercury. Is this ok? "; I would like to replace the {} set of templates with the picked value returned by the method. How do I do that in Java1.5?

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  • Write a program that allows the user to enter a string and then prints the letters of the String sep

    - by WM
    The output is always a String, for example H,E,L,L,O,. How could I limit the commas? I want the commas only between letters, for example H,E,L,L,O. import java.util.Scanner; import java.lang.String; public class forLoop { public static void main(String[] args) { Scanner Scan = new Scanner(System.in); System.out.print("Enter a string: "); String Str1 = Scan.next(); String newString=""; String Str2 =""; for (int i=0; i < Str1.length(); i++) { newString = Str1.charAt(i) + ","; Str2 = Str2 + newString; } System.out.print(Str2); } }

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