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  • Concatenative language inrepreter in Java

    - by Vojislav Stojkovic
    I'm interested in finding a concatenative language interpreter in Java. Ideally, it should satisfy the following conditions: It has an interpreter, not (only) a bytecode compiler for JVM. The language itself has decent documentation, not only a few examples and a "I'll document the rest someday" notice. The project is not completely abandoned. In short, I'm looking for a reasonably "alive" concatenative language that can be embedded into Java easily.

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  • Alternative C++ Compilers?

    - by Dr Hydralisk
    I want to start learning C++, so I downloaded Microsoft Visual Studio 2010 Express, and the entire application freezes and crashes every time I try to compile (debug and release build) something (I have tried running it in Admin Mode). Is there a good alternative compiler that I could still use VS 2010 as the IDE?

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  • Do JVMs on Desktops Use JIT Compilation?

    - by destructo_gold
    I always come across articles which claim that Java is interpreted. I know that Oracle's HotSpot JRE provides just-in-time compilation, however is this the case for a majority of desktop users? For example, if I download Java via: http://www.java.com/en/download, will this include a JIT Compiler?

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  • Minimalist array creation in c#

    - by sipwiz
    I've always wanted to be able to use the line below but the C# compiler won't let me. To me it seems obvious and unambiguos as to what I want. myString.Trim({'[', ']'}); I can acheive my goal using: myString.Trim(new char[]{'[', ']'}); So I don't die wondering is there any other way to do it that is closer to the first approach?

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  • Are nested functions a bad thing in gcc ?

    - by LB
    Hi, I know that nested functions are not part of the standard C, but since they're present in gcc (and the fact that gcc is the only compiler i care about), i tend to use them quite often. Is this a bad thing ? If so, could you show me some nasty examples ? What's the status of nested functions in gcc ? Are they going to be removed ? thanks

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  • What happens when I instantiate class in Python?

    - by Konstantin
    Could you clarify some ideas behind Python classes and class instances? Consider this: class A(): name = 'A' a = A() a.name = 'B' # point 1 (instance of class A is used here) print a.name print A.name prints: B A if instead in point 1 I use class name, output is different: A.name = 'B' # point 1 (updated, class A itself is used here) prints: B B Even if classes in Python were some kind of prototype for class instances, I'd expect already created instances to remain intact, i.e. output like this: A B Can you explain what is actually going on?

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  • Does armcc optimizes non-volatile variables with -O0 ?

    - by Dor
    int* Register = 0x00FF0000; // Address of micro-seconds timer while(*Register != 0); Should I declare *Register as volatile while using armcc compiler and -O0 optimization ? In other words: Does -O0 optimization requires qualifying that sort of variables as volatile ? (which is probably required in -O2 optimization)

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  • C# enum to string auto-conversion?

    - by dcompiled
    Is it possible to have the compiler automatically convert my Enum values to strings so I can avoid explicitly calling the ToString method every time. Here's an example of what I'd like to do: enum Rank { A, B, C } Rank myRank = Rank.A; string myString = Rank.A; // Error: Cannot implicitly convert type 'Rank' to 'string' string myString2 = Rank.A.ToString(); // OK: but is extra work

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  • overloading new/delete problem

    - by hidayat
    This is my scenario, Im trying to overload new and delete globally. I have written my allocator class in a file called allocator.h. And what I am trying to achieve is that if a file is including this header file, my version of new and delete should be used. So in a header file "allocator.h" i have declared the two functions extern void* operator new(std::size_t size); extern void operator delete(void *p, std::size_t size); I the same header file I have a class that does all the allocator stuff, class SmallObjAllocator { ... }; I want to call this class from the new and delete functions and I would like the class to be static, so I have done this: template<unsigned dummy> struct My_SmallObjectAllocatorImpl { static SmallObjAllocator myAlloc; }; template<unsigned dummy> SmallObjAllocator My_SmallObjectAllocatorImpl<dummy>::myAlloc(DEFAULT_CHUNK_SIZE, MAX_OBJ_SIZE); typedef My_SmallObjectAllocatorImpl<0> My_SmallObjectAllocator; and in the cpp file it looks like this: allocator.cc void* operator new(std::size_t size) { std::cout << "using my new" << std::endl; if(size > MAX_OBJ_SIZE) return malloc(size); else return My_SmallObjectAllocator::myAlloc.allocate(size); } void operator delete(void *p, std::size_t size) { if(size > MAX_OBJ_SIZE) free(p); else My_SmallObjectAllocator::myAlloc.deallocate(p, size); } The problem is when I try to call the constructor for the class SmallObjAllocator which is a static object. For some reason the compiler are calling my overloaded function new when initializing it. So it then tries to use My_SmallObjectAllocator::myAlloc.deallocate(p, size); which is not defined so the program crashes. So why are the compiler calling new when I define a static object? and how can I solve it?

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  • What happens to orphaned/killed async AJAX WebMethod or PageMethod calls?

    - by Armchair Bronco
    What happens behind the scenes if I make an AJAX PageMethod or WebMethod call from, say, "Default.aspx" and then I quickly navigate away to a different page, say, "Settings.aspx" before the initial PageMethod has returned? What kind of housekeeping, if any, takes place on either the browser or the ASP.NET back end? In other words, where do abandoned AJAX PageMethod calls go to die...and what is their funeral like?

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  • Formatting Strings in a GridView Cell

    - by Coesy
    I pass text in a gridview cell with a pipe delimiter, for example "4|31.99|3", What I'd like to be able to do is format this text to show as ------------- | 4 | |£31.99 / 3%| ------------- As you can see, I need the 4 to be Bold and be on a line of it's own, the 31.99 to be a currency and the 3 to be a percentage. Can this be done in code-behind using a converter or something?

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  • having trouble with zooming in android webview

    - by Talha
    I'm new to android. I'm using webview in scrollview to display my local html page (html has text only). I created two buttons for zoomin and zoomout using behind function zoomIn() & zoomOut() respectively. These functions work fine. The problenm is, when I zoom in, some of the text goes out from both top and bottom and it doesn't appear when I scroll. How can I resolve this?

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  • Difference of function argument as (const int &) and (int & a) in C++

    - by Narek
    I know that if you write void function_name(int& a), then function will not do local copy of your variable passed as argument. Also have met in literature that you should write void function_name(const int & a) in order to say compiler, that I dont want the variable passed as argument to be copied. So my question: what is the difference with this two cases (except that "const" enshures that the variable passes will not be changed by function!!!)???

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  • Best way to registered Event In WPF

    - by Asim Sajjad
    Which is the best way to registered event for example if I wanto to regiested Loaded event for the window or user control , then it is better to registered in the xaml file or in the loaded/initilization function in code behind (C#/VB.net)? Please give explaination of your answer.

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  • Disable a button on click

    - by Hitz
    I have a button control. Once the user clicks on it, the click event should fire and then the button should get disabled. How can I do this? I have the option to use JQuery or JavasSript or both. Here is my button declaration: <asp:Button ID="Button1" runat="server" Text="Click Me" onclick="Button1_Click" /> On the button click code behind, I have added a Response.Write(). That should get executed and then the button should be disabled

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  • How can I put quotes in a string?

    - by riad
    I need to write a string literal to a text file, but the C# compiler finds errors when I use quote characters in it. My current code: writeText.WriteLine("<?xml version="1.0" encoding="utf-8"?>"); I need the output for the text file to be: <?xml version="1.0" encoding="utf-8"?> How can I put quote characters in strings in C#?

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  • Objective C: Class Extensions and Protocol Conformation Warnings

    - by Ben Reeves
    I have a large class, which I have divided into several different class extension files for readability. @protocol MyProtocol @required -(void)required; @end @interface MyClass : NSObject <MyProtocol> @end @interface MyClass (RequiredExtension) -(void)required; @end Is there a better way to do this, without the compiler warning? warning: class 'MyClass' does not fully implement the 'MyProtocol' protocol

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