C / C++ Forum

*********************************************************************************************************** #include<stdio.h> #include<conio.h> #include<math.h> void main() { double a,b,c,fa,fb,fc,err; int count;

I am skipping a couple of steps in betweens, like inserting into a list of ints and extracting from it. But this is the gist of what I am trying to do class A { }; A *a = new A();

Greetings friends, This semester I have started a course in C programming. I was moving along fine until I reached to the topic of loops (feeling embarrassed among you elite programmers). My prof. would post program questions and the solutions online. For practice I would try to do the problems. I would reach to a certain point in the...

please gimme the logic to merge two binary search trees?I mean which node has to be the root node of the new binary tree?? Thanks in advance

Hi, Is it possible to over load a function of a class with const input parameter ? class A { public: void aFunc(const B& b); void aFunc(B& b); }

Dear all, I am trying to "find the area under the curve f(x)=sin(x)/x for x=1 to 3" a) Use the trapezoidal rule method. Prove that your trapezoidal rule method is second order accurate (using he program) b) Use the Romberg method. Compare the grid size neccessary to get convergence to within 1e-8 using TR (part a) versus the Romberg...

I have an 8 bit byte in which two bits are used and the remaining 6 are unused. #pragma pack(1) typedef struct { unsigned int item_len; unsigned char presentationContextID; unsigned char unused : 6; unsigned char command : 1;

Hi, I am facing a problem with trying to conditionally compile inside a macro. I have a macro #define SET_VAL(x, y) ((x) = *(y)) But the problem is y can be NULL in which case I want to set x to 0. So I modified macro to #define SET_VAL(x, y)

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I have created a poll about There are 3 most popular web browsers- IE, Netscape & Firefox. Sometime, website format could distort a little bit. So, I think it is important to know which web browsor is most popular and the resaon why you like that web browsor? You are also welcome to provide other good web browsor's information. URL:

I'm looking to simulate the behavior of a digital hardware arithmetic block in a C/C++ program. I was just wondering if there are any libraries (with datatypes and overloaded operators etc.) available for arithmetic operations on Fixed/Block-Floating Point variables ?? Alternatively could anyone throw me a pointer to sample code if...

I'm looking to simulate the behavior of a digital hardware arithmetic block in a C/C++ program. I was just wondering if there are any libraries (with datatypes and overloaded operators etc.) available for arithmetic operations on (variable lenght) Fixed/Block-Floating Point variables ?? Alternatively could anyone throw me a pointer to...

Hello, Stupid question, but I just don't remember, here is what I want to do: #ifdef _UNICODE #define ONLY_UNICODE(t) t #else #define ONLY_UNICODE(t) #endif You know what it does, but I'm not sure, if I actually can use #defines

Could anyone tell me how to write a loop for an array, that would have to check each iteration for duplications of previous entered values. So, the exact number of loops is not known, but the total number of array elments is known. Example: array size - array (some type of loop statement) { array "equal to" or "not equal to" a variable....

I recently started back programming in C++, having taken a break of well over a year. Before I stopped, I considered myself to be an expert. When I started back, things started coming back to me day by day. When I first opened a source code file it looked like gibrish! Now about two weeks later, I just about back to the standard I was at....

Dear all, I have coded a class called Object with a member method called getClassName(). Here is the code of this class: #include <iostream>

Hi all. I'm reading a program which used the sentence below: #define NUM_THREADS 10 ... ... int rand_num; rand_num = 1+ (int) (9.0 * rand() / (RAND_MAX + 1.0)); sleep(rand_num); ... ... (The program is long so I used a part of it.)

I have two classes: // B.h class B { friend class A; //... private: static float rate; }

Hi All, I want to find at runtime for given class object, if it is a object of given class. For example: I have declared "ClassA" and i have created its instance "instA". Now at run time, how can i detect, if "instA" is object of "ClassA". Something like "is" operator in Delphi or C#. (e.g if( instA is ClassA) ) Thanks in advacne. Regards

I have a function in a class: void A::aFunction (B& b) { // do something .... } void A::anotherFunction() { // need a reference of B again. }

Hi guys, I am working on a project which requires an implementation of discrete event simulation in C using linked lists. I would greatly appreciate if someone could provide with some sources on how to approach DES. Please help me out. Thanks, Jack

Hi Gurus, I got a problem, I am trying to port a win32 prog to Linux. It was all one big program.cpp and I have to split the functions into separate init_pxi6052e.cpp,func1.cpp and func2.cpp in order to compile them separately and debug them. In both cpp file I have to include a common header file lets call it here as "datatype.h" which is...

Hi, Is it possible to write driver files in C++? if not why... thanks,

Hi, For example: 1 __int64 fib4(__int64 n) 2 { 3 if ((n==1) || (n==2)) return 1; 4 else return (fib(n-1)+fib(n-2)); 5 }

here is what i what to do; //pesudo code iter = container.begin(); while (iter != container.end()) { myclass *obj =my_cast (*iter); obj->func(arg1, arg2); } i want to simplify those code just like this: