C / C++ Forum

NT Service working on LocalSystem. Can ordinary user start such service? I've tried this: scmHandle = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT); scHandle = OpenService(scmHandle, "CapNetSrv", SERVICE_START); OpenSCManager working but OpenService return error: "The handle does not

I'm writing a program to read 2,000,000 floating point numbers off a text file, to compute the sum, mean, and median. This is a direct example of Stroustrup's paper. But the program will not display the total number of elements beyone 23,272: #include<vector> #include<fstream> #include<iostream> #include<algorithm>

I have a very specific problem to solve but I cannot find a data structure for it. I don't know if I am posting on the good newsgroup but I cannot find a software.design group. I would like to declare a smart structure initialized via a XML file. The goal of this structure is to store data from a smart card. My XML file describes the file...

Hi, is this code: class XY{}; void foo(bool b) { XY a; if(b) {

I am a bit confused with the two marked lines. I have never seen such syntax even though I read a lot of C++ codes. Thanks for your suggestion... BluetoothReceiver::BluetoothReceiver() : bandpassFilter(BPLENGTH), <--- Here

HI, When can i use aggregation and composition. I mean Class A{ }; Class B{ private:

The fourth part of my attempted Correct C++ tutorial is now available, although for now only in Word format (use free Open Office if no Word), and also, it's not yet been reviewed at all -- comments welcome! "Decisions & conditions" <url: http://home.no.net/dubjai/win32cpptut/w32cpptut_01_04.doc> Different from before I don't expect...

I have an application in Java that I would like to port to c++ to integrate with existing c++ app. is anyone aware of any tools to help? I found microsft has a java->csharp convert, but the java app has class that do multiple subclassing and this doesn't seem to work in Csharp. thanks...charlie

Hello, Currently I have the following "design": class A { ... }; class B : public A { ... }; class C : public A { ... }; class Z { private:

Dear all, I'm not sure this is the right place to ask for help, but I cannot find any solution anywhere else, I hope you could help me. I'm using Borland C++ Builder 6 with TeeChart v4.04 standard. I'm writing a simple application that should acquire a signal from an acquisition board, and diplay it on the screen. The signal is sampled...

does anyone know how to implement this function?

Suppose I have an array of Foo's: class Foo { public: int SomeMethode(void); int i; char c; char * p;

Hello everybody, (Disclaimer: I do not understand C++ templates.) I've tried to make a testcase from the original code. GCC 3.3.5 compiles with no warning, while GCC 3.4.3 rejects it. Could somebody tell me if it because the code is illegal, and GCC 3.4.3's stricter parser now rejects it, or is it some kind of regression?

Hi, I know I can do integer division with the / operator, and get the modulus with the % operator, but is there any function that calculates both values in one shot? It seems quite wasteful in time to do the division twice in order to get both of those values, when it would be quite easy to return them both from a single function. I saw...

Hi Guys! I'm sorry for my stupid question. I want to use the operator "mod" (perhaps mod is pascal and not c++) to calculate the rest of a division, to separate the odd and even number of an array. do you know what is the name of operator I need ? ("mod" is pascal ?)

I have a big class that contains code like this (the code is automatically generated according to some configuration): if(str == "name1"){ do; something; name1_specific; }else if(str == "name2"){ do; something;

Hi, Sorry to ask this question in such a backward way, but in java it is possible to say int arr = new int { { 1 }, { 1, 2}, { 1, 2, 3}}; Is it possible to do the same in C++ with an (int **)? (Understanding, of course, that I will need to know the sizes of arrays when using arr.)

I'm a total C++ newbie here--my background is largely in Visual Basic. I'm looking for someone who knows (or can send me in the right direction) on a method to convert a double to currency for output; moreover, I'm interested in finding a method that supports the thousandths separator. I have found a money class that works just fine; however,...

Hi, Can someone explain this to me, please. Why is it m_values that takes what's in v.m_values ? I don't understand because it's Tvector& v in parameter... Maybe it's too obvious to be explain... Tvector(const Tvector& v)

I believe that the following is valid c++: #include <iostream> template <typename CMP> class Comparator { bool operator()(int x,int y) { return CMP(x,y);

Hi, ich habe gerade angefangen mit C++. So, ich habe mal zum testen eine simple Codezeile geschrieben die unter Windows nur ein Hinweis-Fenster öffnen soll. Das funktioniert auch, jedoch öffnet sich beim Programmstart erst die Console (ohne Prompt) und gleichzeitig erscheint auch das Hinweisfenster.

I had what I thought was proper SFINAE code. Two declarations of a function, one more general, one more specific. The code compiles just fine on gcc 3.3, but fails on 3.4 and 3.4.2. What is wrong with my code? My understanding was that the second routine would be called because it is a better match, and the first one would not be...

the following is an example of code that won't compile. (I've reproduced the problem in a simplistic format ) .... #include <iostream> using namespace std; class MyClass { public:

For the past month I have been porting a DirectX windows game to libSDL on linux, for right now I am working on the basic syntax of the game engine, I was having problems with opening, reading, and closeing of directories, I have fixed that though...who woulda thought that it would be open, read, and closedir()? Anyway, I am still working...

Hi I'm receiving a message from a device which includes the CRC16, i also have to calculate the CRC16 and check if it matches the one received. My problem is that the calculated CRC is not the same as the received one. This is how the unit for calculating the CRC: ...