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Question: How can I dynamically declare a 2D array and pass it as a parameter to a function?Here’s an example of what I’m trying to do:#include #include #include const SIZE
Question: Can static variables (of a class) be accessed and modified by any member function (static/otherwise) of that class?Also, what are the typical instances of having a static function in
Question: I wasn’t able to find out what all the command line switches for dbexport do. The only ones I found were -o and -c.Is there a way to export
Question: What happens to dangling pointers in Java? Supposedly there is garbage collection, but when is it performed? From what Ihave read, it seems really easy to have persistent danglingpointers
Question: I would like to see examples of overloading the inserter and extractor operators. Answer: class MyClass{public: void operator
Question: Is it reliable to mix cout statements withfprintf statements in the same C++ code ifcout.sync_with_stdio() is used? Does thiscreate one single buffered file I/O stream? Answer: In general, there
Question: I have two enumerated types: enum suit_type{club,diamond,heart,spade} and enum rank_type{ace,two,…,queen,king}. In structure CARD, I have the variables suit_type suit and rank_type rank. In class PILE, I have a private
Question: I would like to know what virtual function tables are. When one refers to vtables, is it a virtual function table that is implied? Answer: In short, vtables are
Question: If the destructor is called from a new’ed object (a->A::~A()), is the object’s instance deleted? Answer: No. A destructor is a special member function of a class that is
Question: We are getting an error message that says a function fromwithin a class C cannot allocate instanceof type C because one of the virtual functions(the one we wrote) is
Question: Is there a standard method/operator in C++ analogous to standard C’s realloc() function that enables resizing of dynamic memory allocated by new operator? Answer: There is no standard call
Question: This is legal (safe) and works with the compilerenvironment I am using: CMyObject *ptr = NULL; delete ptr;However, I get a run-time error (assert) whenI use the array delete
Question: Do you know of a good tool for getting performance data on a pure C++ program?I need a tool that indicates sections of code thatuse the most CPU/memory, etc.
Question: I have a templated class A that defines two operator =, and a templated class B : public class A which should inherit the two virtual a::operator = I
Question: Background: Digital UNIX 3.2g, Alpha platform, latest GNU.From the FAQ, I know that you are supposed to declare static member variables externally from the declaration and inonly one place.
Question: I defined a class A, which has three constructors:A(), A(int), A(int, int)Can I just define the behavior in one constructor, say A(int, int), and let the other two constructors
Question: Is there a way to do some macro magic with members of a given class sothat when a designated name is called, itinvokes the macro that called the class
Question: I am a C/C++ programmer who is moving from the beginner to intermediate level. My question is, how does one move successfully from the beginner to intermediate level? Answer:
Question: I have written a program with two classes. Each uses the other within it and contains pointers to the other. However, this means that the first class encountered by
Question: I have a typedef structure that holds info for employees, and an array of these structures. I need to access a part of the structure for one employee. How
Question: I’ve read that there are two ways to define a class constructor. For example:class List…1. List():num(0) { }2. List() { num=0; }Why is the first one more efficient at
Question: I found on the Web a simple class Screen as follows: /*———————————————— * s c r e e n . h * * A class to manage an ANSI
Question: We have a structure already defined that is now being modified, containing more than 400 pages that include IMG tags. The entire “mess” is being moved to another server/structure
Question: My connection to my server is disrupted when I get a call on call waiting. No one seems to know how to dis-enable my call waiting. Service is provided
Question: I have Internet Explorer 2.1. While downloading, it popped up a box to show my rate of transfer (bps). I have since installed a new hard drive. Once I
Question: Is there a way to stop a background from tiling? Answer: Yes and no. You cannot stop a background graphic from tilling but you canmake it “seem” like it
Question: Is it possible to determine the size (width and height) of the current user’s browser window? If so, is it then possible to use that pixel dimension and paste
Question: How can I link my home page to my domain name? My domain name will be “shhspgh.org”. How can I name or link my home page document so that
Question: I am writing a Music CD program. I know that each Music CD has a unique number that identifies it. How can I access the number on the CD?
Question: What’s happening with multi-user 3D servers for VRML worlds? Can I take myavatar into any world yet? Answer: There are a few companies selling commercial versions of multi-user 3Dservers,