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• How generate unique Integers based on GUIDs

  - by anonim.developer

  Is it possible to generate (highly probable) unique Integer from GUIDs? int i = Guid.NewGuid().GetHashCode(); int j = BitConverter.ToInt32(Guid.NewGuid().ToByteArray(), 0); Which one is better?

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• C++: Unitialized variables garbage

  - by Hardware Problem

  int myInt; cout << myInt; // Garbage like 429948, etc If I output and/or work with unitialized variables in C++, what are their assumed values? Actual values in the memory from the "last user"? e.g.: Program A is closed, it had an int with the value 1234 at 0x1234 - I run my program, myInt gets the address 0x1234, I output it like above - 1234 Is it just random garbage?

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• Ternary operators in C#

  - by pm_2

  With the ternary operator, it is possible to do something like the following (assuming Func1() and Func2() return an int: int x = (x == y) ? Func1() : Func2(); However, is there any way to do the same thing, without returning a value? For example, something like (assuming Func1() and Func2() return void): (x == y) ? Func1() : Func2(); I realise this could be accomplished using an if statement, I just wondered if there was a way to do it like this.

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• please help me to solve problem

  - by davit-datuashvili

  hi everybody fisrt of all this is not homework and now question is like this suppose i have array int a[]=new int[]{0xBCDA,0xABFE,0xBCAD,0xEFCA,0xFFCA} i know that there is always some hexadecimal number which occurs in all number or in this case A is repeat in array everywhere so my aim is print only repeat number and other numbers should be zero so my new array should be like this 0x000A, 0xA000,0x00A0 0x000A,0x000A any idea please help me? p.s please nobody say that this is homework

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• Comparing One Value To A Whole Array? (C#)

  - by Soo

  Let's say I have a C# variable and array: int variable_1 = 1; int[3] array_1 = {1,2,3}; How can I check if the value of variable_1 is equal to any of the values in array_1 without looping through array_1?

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• Static member class - declare class private and class member package-private?

  - by Helper Method

  Consider you have the following class public class OuterClass { ... private static class InnerClass { int foo; int bar; } } I think I've read somewhere (but not the official Java Tutorial) that if I would declare the static member classes attributes private, the compiler had to generate some sort of accessor methods so that the outer class can actually access the static member class's (which is effectively a package-private top level class) attributes. Any ideas on that?

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• Manually position JComponent inside JPanel

  - by oletus

  I want to programmatically move my JLabel to a specific location inside my JPanel. I have tried setLocation(int x, int y), but it doesn't work. I am trying to not use any layout manager.

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• Haskell - how can I check if number is Double/Float?

  - by MMM

  I would like to do smth like: x `mod` 1.0 == 0 // => int but it seems mod works only for int... help!

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• Why the function from immediate parent is called and not from grandparent class. Is this called func

  - by sandeep

  class A { public: void test () { cout<<"In A"; } }; class B :public A { public: void test () { cout<<"In B"; } }; class C : public B { public: int c; }; int main() { C c; c.test(); } The result is: In B...

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• Why doesn't this C++ code work? [closed]

  - by Jon Skeet

  Here is it: #include <iostream> using namespace std; int main() { int * m; cout << *m; } I know it's bad, but why?

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• What's the catch to create _names _of _fields _like _these in java?

  - by Roman

  From time to time I see something like this: class Clazz { private int _goodName; private int _anotherGoodName; ... } I don't get it. It's hard and unusual to read such code. What are the pros?

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• What does a fullstop or period or dot (.) mean in Haskell?

  - by Casebash

  I really wish that Google was better at searching for syntax: decades :: (RealFrac a) => a -> a -> [a] -> Array Int Int decades a b = hist (0,9) . map decade where decade x = floor ((x - a) * s) s = 10 / (b - a)

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• C/C++ variable length automatic array performance

  - by aaa

  hello. Is there significant cpu/memory overhead associated with using automatic arrays with g++/Intel on 64-bit x86 linux platform? int function(int N) { double array[N]; overhead compared to allocating array before hand (assuming function is called multiple times) overhead compared to using new overhead compared to using malloc range of N maybe from 1kb to 16kb roughly, stack overrun is not a problem Thank you

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• How to check if a variable is an object?

  - by Patrick

  Is there any way to do the following at compile-time? int anInteger = 0; __if_object(anInteger) { // send object some messages } __if_primitive(anInteger) { // do something else } An dummy situation where this could be used is to define the __add_macro below. #define __add_macro(var, val) __something_goes_here__ int i = 1; MyInteger* num = [[MyNumber alloc] initWithValue:1] __add_macro(i, 4); __add_macro(num, 4); // both should now hold 5 Thanks

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• Deprecate in Java 1.6

  - by iano

  In Java 1.5, to deprecate a method you would: @Deprecated int foo(int bar) { } Compiling this in Java 1.6 results in the following: Syntax error, annotations are only available if source level is 1.5 Any ideas?

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• Locating objects (structs) in memory - how to?

  - by flavour404

  Hi, How would you locate an object in memory, lets say that you have a struct defined as: struct POINT { int x; int y; }; How would I scan the memory region of my app to find instances of this struct so that I can read them out? Thanks R.

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• how use in it in main project?

  - by davit-datuashvili

  I have the following interface: public interface MyFunctor { int myFunction(int x); } And I created a class which implements this interface : public class Myfunction1 implements MyFunctor { } how use in main project? i have corrected mistake now i need how run it in main project? i mean in public static void main(String[]args)?

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• invalid conversion from ‘char*’ to ‘char’

  - by paultop6

  Hi Guys, I have a, int main (int argc, char *argv[]) and one of the arguements im passing in is a char. It gives the error message in the title when i go to compile How would i go about fixing this? Regards Paul

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• Postion of & to denote reference type

  - by Matt H

  I was wondering whether to put the ampersand (&) after the variable type or before the variable name. To put it simply, I want to know which one is the conventional style or the standard, or if it is entirely down to preference. int &x; or int& x;

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• Please suggest what is wrong with this string reversal fucntion(C++)?

  - by AKS

  This code is compiling clean. But when I run this, it gives exception "Access violation writing location" at line 9. void reverse(char *word) { int len = strlen(word); len = len-1; char * temp= word; int i =0; while (len >=0) { word[i] = temp[len-1]; //line9 ++i;--len; } word[i] = '\0'; }

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• find out the origin of function calls

  - by user560343

  Hi all, I wonder if there is a software that can help us determine all possible origins of a function call. For example: /* in file f1.c */ int f1() { x_func(); } /* in file f2.c */ int f2() { x_func(); } If we want to trace the origin of all function calls to x_func(), the output will be: f1.c:f1() f2.c:f2() This is very useful when reading the source code. All answers are appreciated. Thank in advance :D

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• haskell check for user input errors

  - by snorlaks

  Hello. Im writing app in haskell and I would like to know that is the best way to check if users input is ok for example is it int when Im asking for int or if its date when asking for well formed date ? Thanks for help

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• Access element of pointed std::vector

  - by user146780

  I have a function where I provide a pointer to a std::vector. I want to make x = to vector[element] but i'm getting compiler errors. I'm doing: void Function(std::vector<int> *input) { int a; a = *input[0]; } What is the right way to do this? Thanks

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• Output of a C question..

  - by RBA

  int main() { int a=10,b=20; char x=1,y=0; if(a,b,x,y) { printf("EXAM"); } } Hi, Please let me know why output of this question is "Printed Nothing".. Thankss.

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• How are macros evaluated in C?

  - by httpinterpret

  #ifdef CONFIG_IP_MULTIPLE_TABLES struct fib_table * fib_hash_init(int id) #else struct fib_table * _ _init fib_hash_init(int id) { ... } How's the value of CONFIG_IP_MULTIPLE_TABLES populated?

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