Search Results

Search found 6159 results on 247 pages for 'compile'.

Page 166/247 | < Previous Page | 162 163 164 165 166 167 168 169 170 171 172 173  | Next Page >

• Parse XML with XPath & namespaces in Java

  - by ripper234

  Can you help me adjust this code so it manages to parse the XML? If I drop the XML namespace it works: String webXmlContent = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<foo xmlns=\"http://foo.bar/boo\"><bar>baz</bar></foo>"; DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance(); domFactory.setNamespaceAware(true); DocumentBuilder builder = domFactory.newDocumentBuilder(); org.w3c.dom.Document doc = builder.parse(new StringInputStream(webXmlContent)); NamespaceContextImpl namespaceContext = new NamespaceContextImpl(); namespaceContext.startPrefixMapping("foo", "http://www.w3.org/2001/XMLSchema-instance"); XPath xpath = XPathFactory.newInstance().newXPath(); xpath.setNamespaceContext(namespaceContext); XPathExpression expr = xpath.compile("/foo/bar"); Object result = expr.evaluate(doc, XPathConstants.NODESET); NodeList nodes = (NodeList) result; System.out.println("Got " + nodes.getLength() + " nodes");

  Read the article

• Warning vs. error

  - by Samuel

  I had an annoying issue, getting a "Possible loss of precision" error when compiling my Java program on BlueJ (But from what i read this isn't connected to a specific IDE). I was surprised by the fact that the compiler told me there is a possible loss of precision and wouldnt let me compile/run the program. Why is this an error and not a warning saying you might loose precision here, if you don't want that change your code? The program runs just fine when i drop the float values, it wouldn't matter since there is no point (e.g [143.08, 475.015]) on my screen. On the other hand when i loop through an ArrayList and in this loop i have an if clause removing elements from the ArrayList it runs fine, just throws an error and doesn't display the ArrayList [used for drawing circles] for a fraction of a second. This appears to me as a severe error but doesn't cause (hardly) any troubles, while i wouldn't want to have such a thing in my code at all. What's the boundary?

  Read the article

• Ways to optimize Android App code based on function call stack?

  - by K-RAN

  I've been told that Android OS stores all function calls in a stack. This can lead to many problems and cause the 'hiccups' during runtime, even if a program is functionalized properly, correct? So the question is, how can we prevent this from happening? The obvious solution is to functionalize less, along with other sensible acts such as refraining from excessively/needlessly creating objects, performing static calls to functions that don't access fields, etc... Is there another way though? Or can this only be done through careful code writing on the programmers' part? Does the JVM/JIT automatically optimize the bytecode during compile time to account for this?? Thanks a lot for your responses!!

  Read the article

• In C#: How to declare a generic Dictionary with a type as key and an enumeration of that type as val

  - by Marcel

  Hi all, I want to declare a dictionary that stores typed IEnumerable's of a specific type, with that exact type as key, like so: (Edited to follow johny g's comment) private IDictionary<Type, IEnumerable<T>> _dataOfType where T: BaseClass; //does not compile! The concrete classes I want to store, all derive from BaseClass, therefore the idea to use it as constraint. The compiler complains that it expects a semicolon after the member name. If it would work, I would expect this would make the later retrieval from the dictionary simple like: IEnumerable<ConcreteData> concreteData; _sitesOfType.TryGetValue(typeof(ConcreteType), out concreteData); How to define such a dictionary?

  Read the article

• Problem accessing base member in derived constructor

  - by LeopardSkinPillBoxHat

  Given the following classes: class Foo { struct BarBC { protected: BarBC(uint32_t aKey) : mKey(aKey) mOtherKey(0) public: const uint32_t mKey; const uint32_t mOtherKey; }; struct Bar : public BarBC { Bar(uint32_t aKey, uint32_t aOtherKey) : BarBC(aKey), mOtherKey(aOtherKey) // Compile error here }; }; I am getting a compilation error at the point indicated: error: class `Foo::Bar' does not have any field named `mOtherKey'. Can anyone explain this? I suspect it's a syntactical problem due to my Bar class being defined within the Foo class, but can't seem to find a way around it. This is simple public inheritance, so mOtherKey should be accessible from the Bar constructor. Right? Or is it something to do with the fact that mOtherKey is const and I have already initialised it to 0 in the BarBC constructor?

  Read the article

• Problem with loading compiled c code in R x64 using dyn.load

  - by Sacha Epskamp

  I recently went from a 32bit laptop to a 64bit desktop (both win7). I just found out that I get an error now when loading dll's using dyn.load. I guess this is a simple mistake and I am overlooking something. For example, I write this simple c function (foo.c): void foo( int *x) {*x = *x + 1;} Then compile it in command prompt: R CMD SHLIB foo.c Then in 32bit R I can use it in R: > setwd("R") > dyn.load("foo.dll") > .C("foo",as.integer(1)) [[1]] [1] 2 but in 64bit R I get: > dyn.load("foo.dll") Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared object 'C:/Users/Sacha/Documents/R/foo.dll': LoadLibrary failure: %1 is not a valid Win32 application. nd.

  Read the article

• question about c++ template functions taking any type as long that type meets at least one of the re

  - by smerlin

  Since i cant explain this very well, i will start with a small example right away: template <class T> void Print(const T& t){t.print1();} template <class T> void Print(const T& t){t.print2();} This does not compile: error C2995: 'void Print(const T &)' : function template has already been defined So, how can i create a template function which takes any type T as long as that type has a print1 memberfunction OR a print2 memberfunction (no polymorphism) ?

  Read the article

• Nonstatic conversion functions; Casting different types, e.g. DirectX vector to OpenGL vector

  - by Markus

  I am currently working on a game "engine" that needs to move values between a 3D engine, a physics engine and a scripting language. Since I need to apply vectors from the physics engine to 3D objects very often and want to be able to control both the 3D, as well as the physics objects through the scripting system, I need a mechanism to convert a vector of one type (e.g. vector3d<float>) to a vector of the other type (e.g. btVector3). Unfortunately I can make no assumptions on how the classes/structs are laid out, so a simple reinterpret_cast probably won't do. So the question is: Is there some sort of 'static'/non-member casting method to achieve basically this: vector3d<float> operator vector3d<float>(btVector3 vector) { // convert and return } btVector3 operator btVector3(vector3d<float> vector) { // convert and return } Right now this won't compile since casting operators need to be member methods. (error C2801: 'operator foo' must be a non-static member)

  Read the article

• Where to intercept resolution of controller/view in ASP.Net MVC for customizations?

  - by Jason Jackson

  I am trying to figure out where the appropriate place is to intercept the resolution of what view + controller is being called in ASP.Net MVC 2. I have a situation where I have a controller and a corresponding set of views. I also have the possibility of a customized version of both the controller and N of the views sitting in the project (or we may use something like Portable Views from the MvcContrib project). If the customized version of the controller or view(s) exists at run time, and the user satisfies certain criteria, I need to call the customized controller and use the appropriate customized view. At design/compile time we don't know what customizations may be in place. My first run at this was by using a custom controller factory that returns a custom controller if it exists. However, this controller is "wired up" to the standard view, and I cannot figure out how to return the customized view if it also exists. To complicate matters, there may be no customized controller but customized views, and visa-versa.

  Read the article

• How do you resolve the common naming collision between type and object?

  - by Catskul

  Since the standard c# convention is to capitalize the first letter of public properties, the old c++ convention of initial capital for type names, and initial lowercase for non-type names does not prevent the classic name collision where the most obvious object name matches the type name: class FooManager { public BarManager BarManager { get; set; } // Feels very wrong. // Recommended naming convention? public int DoIt() { // 1st and 2nd Bar Manager are different symbols return BarManager.Blarb + BarManager.StaticBlarb; } } class BarManager { public int Blarb { get; set; } public static int StaticBlarb { get; set; } } It seems to compile, but feels so wrong. Is there a recommend naming convention to avoid this?

  Read the article

• Strange error that I've never encounter in c++ before, anyone know what it means?

  - by Silmaril89

  Hi, I won't post any code, because there is too much that could be relevant. But When I run my program it prints Internal Bad Op Name! : Success Anybody even know what that means? I'm using g++ to compile my code and nowhere in my code do I cout anything even remotely close to something like that. I don't know where it's coming from. Also, any suggestions as to figure out where in the code it's coming from, maybe using gdb somehow to do that? Thanks!

  Read the article

• Seperate compilation in C++

  - by Pat Murray

  Suppose you are creating a class with multiple .cpp files (which each contain the implementation of a member function) and have the class' declaration in a .h file. Also, each .cpp file includes the .h file via the include directive. I was told that if you change the implementation of any of the member functions (.cpp files) that you will have to recompile every .cpp file in order to run the program. That is, if I had 5 member functions (each implemented in a .cpp file) and I changed the implementation of 1 of the .cpp files I would have to compile the 1 .cpp file I changed AND the 4 other .cpp files I didn't change in order to correctly run my program. My question, if the previous statement is true, is why is the statement is true? Any insight on this concept would be helpful.

  Read the article

• Are C/C++/ObjC/JS Apple's only allowed langauges for iPhone development?

  - by fbrereto

  According to this post on Daring Fireball a new iPhone SDK Agreement release in conjunction with the iPhone OS 4.0 announcement today specifically bans any iPhone application not implemented in C, C++ Objective-C or JavaScript. The clear impact here is to the wide array of programs written in languages other than those. Is that your reading of the clause in the new agreement as well? Update: Here is the clause as printed on Daring Fireball: 3.3.1 — Applications may only use Documented APIs in the manner prescribed by Apple and must not use or call any private APIs. Applications must be originally written in Objective-C, C, C++, or JavaScript as executed by the iPhone OS WebKit engine, and only code written in C, C++, and Objective-C may compile and directly link against the Documented APIs (e.g., Applications that link to Documented APIs through an intermediary translation or compatibility layer or tool are prohibited).

  Read the article

• Loop and ListView

  - by monomi

  I find a match with Regexp. How to correctly organize a loop, if more than one match and write it in the ListView? listAlbums = (ListView)findViewById(R.id.listAlbums); ... Pattern patternNameToId = Pattern.compile(kRegexp); String nameTo = "" Matcher matcherName = patternNameToId.matcher(response); if (matcherName.find()) { nameTo = matcherTopicTitle.group(2); albumsList = new ArrayList<String>(); albumsList.add(nameTo); ArrayAdapter<String> adapter = new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1, albumsList); listAlbums.setAdapter(adapter); } else Toast.makeText(context, "?? ???????", Toast.LENGTH_LONG).show();

  Read the article

• F# powerpack and distribution

  - by rwallace

  I need arbitrary precision rational numbers, which I'm given to understand are available in the F# powerpack. My question is about the mechanics of distribution; my program needs to be able to compile and run both on Windows/.Net and Linux/Mono at least, since I have potential users on both platforms. As I understand it, the best procedure is: Download the powerpack .zip, not the installer. Copy the DLL into my program directory. Copy the accompanying license file into my program directory, to make sure everything is above board. Declare references and go ahead and use the functions I need. Ship the above files along with my source and binary, and since the DLL uses byte code, it will work fine on any platform. Is this the correct procedure? Am I missing anything?

  Read the article

• Reducing template bloat with inheritance

  - by benoitj

  Does anyone have experience reducing template code bloat using inheritance? i hesitate rewriting our containers this way: class vectorBase { public: int size(); void clear(); int m_size; void *m_rawData; //.... }; template< typename T > class vector : public vectorBase { void push_back( const T& ); //... }; I should keep maximum performance while reducing compile time I'm also wondering why stl implementations do not uses this approach Thanks for your feedbacks

  Read the article

• QT, LGPL, Commercial closed-source application

  - by user364730

  We have a commercial windows application making use of QT. I'll be very simplistic in my description as I must have a clear answer. At compile time we use QT *.LIB files We have a result of our compilation is an *.EXE file, we wrap into an installer and ship to clients. This *.EXE files depends on *.DLL files in QT. at runtime the *.DLL files of QT are used My questions are: 1) is can I legally bundle the QT *.dll files in my installer? 2) can I legally bundle my final *.EXE files even if it's compilation/linkage depends on QT *.LIB files Thank you

  Read the article

• How to leave out some statements while executing java code?

  - by iamrohitbanga

  In C++ if we do not want some statements to compile into code that ships like assert function calls, we control their compilation through #ifndef preprocessor directives. How do we do this in Java? I have some System.out.println() statements for debugging which I would like to remove for the final code. one way is to make them execute conditionally under the affect of a boolean variable. Is there a better way of doing this? As I have a java swing application I can turn off the System.out.println statements without affecting the output. What is the method of doing this?

  Read the article

• QMap inheritance with QMapIterator

  - by gregseth

  Hi, I made a personnal class which inherits QMap: class CfgMgr : public QMap<QString, CfgSet*> {...} I'm trying to iterate over all its elements like that: CfgMgr* m_pDefaults = new CfgMgr; // .../... QMapIterator<QString, CfgSet*> ics(*m_pDefaults); while (ics.hasNext()) { // doing my stuff } And I get the compile error: Can't convert parameter 1 from 'CfgMgr' to 'const QMap< Key,T &' with [ Key=QString, T=CfgSet * ] I tried with a dynamic_cast: QMapIterator<QString, CfgSet*> ics( *dynamic_cast< QMap<QString,CfgSet*>* >(m_pDefaults) ); it compiles, but always returns NULL. What's wrong? How can I solve this?

  Read the article

• How can I concatenate two mp3 files with different bit rates

  - by Scott

  I have FFmpeg installed on my linux web server. When I execute the following code, I have intermittent results. I think I have figured out that the MP3s do not compile when they have different bitrates. exec ('cat '. $pair['source_file'] . ' ' . $pair['translated_word_file'] . '>' . $temp_mp3); I might have found some articles online that reference taking them apart and then bundling them back together at a consistent bitrates. I have confirmed that this won't really work with basic "cat" function and that "sox" can be used IF they have the same sample rate. The issue now becomes "What is the best way to get them to the same sample rate?"

  Read the article

• Getting Oracle Exception: ORA-1017: invalid username/password; logon denied

  - by Paks

  I have tried so many thing but i can't resolve that Error. I can connect with my username and password to: Database in SQLDeveloper, in SQL-Plus, in Server-Explorer (Visual Studio 2008) and all works fine. But if i Compile my Project i get that Error. Why is that? I tried to set case_sensitive to false, but the same error appears. I dont know what else to do. My Oracle version: Oracle Database 11g Express Edtiton Release 11.2.0.2.0 - Production PL/SQL Release 11.2.0.2.0 - Production CORE 11.2.0.2.0 Production TNS for 32-bit Windows: Version 11.2.0.2.0 - Production NLSRTL Version 11.2.0.2.0 - Production

  Read the article

• Creating Delegates With Lambda Expressions in F#

  - by Matt H

  Why does... type IntDelegate = delegate of int -> unit type ListHelper = static member ApplyDelegate (l : int list) (d : IntDelegate) = l |> List.iter (fun x -> d.Invoke x) ListHelper.ApplyDelegate [1..10] (fun x -> printfn "%d" x) not compile, when: type IntDelegate = delegate of int -> unit type ListHelper = static member ApplyDelegate (l : int list, d : IntDelegate) = l |> List.iter (fun x -> d.Invoke x) ListHelper.ApplyDelegate ([1..10], (fun x -> printfn "%d" x)) does? The only difference that is that in the second one, ApplyDelegate takes its parameters as a tuple. Error 1 This function takes too many arguments, or is used in a context where a function is not expected

  Read the article

• app.config - where should it go?

  - by Piers

  This is a follow on from here: Storing database settings outside app.config So I know it's possible to have one app.config, with different sections externalised, all with different values. But are they like the web.config files in asp.net projects where you can just copy it into the same folder as the rest of the files and it will work, or do I need to compile it in somewhere. Also, won't it be overwritten by the .exe.config file? Edit Ok, so I worded this question a bit badly. I've updated it.

  Read the article

• c++ Initializing a struct with an array as a member

  - by Drew Shafer

  I've got the following reduced testcase: typedef struct TestStruct { int length; int values[]; }; TestStruct t = {3, {0, 1, 2}}; This works with Visual C++, but doesn't compile with g++ under linux. Can anyone help me make this specific kind of initializer portable? Additional details: the actual structure I'm working with has several other int values, and the array can range in length from a single entry to over 1800 entries. Any help much appreciated. Thanks!

  Read the article

• Can Spring understand @Inject replacing Weld as a JSR-299 implementation?

  - by Thorbjørn Ravn Andersen

  I have noticed from several web pages that apparently Spring 3.0 supports @Inject from JSR-330. As we would really like to use JSR-299 syntax for dependency injection in our libraries for both web apps and stand-alone applications, and have alternatives to Weld, it would be nice if Spring could do this. Being a novice to Spring, I tried downloading the Spring Framework distribution and put all jars on the Eclipse build path. No Inject annotation so my existing test project using Weld did not compile. Can this be done with Spring? What do I need to do to get it running? (I am aware that Guice eventually will support this too. It is only in SVN for now, and if there is an official Spring release which can, that would be better.)

  Read the article

< Previous Page | 162 163 164 165 166 167 168 169 170 171 172 173  | Next Page >