49,765 Topics
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| | Hi! I try to implement a matrix template class which inherits the vector of vectors. The message I get: "error C2679: binary '=' : no operator found which takes a right-hand operand of type 'const Vector<T> *' (or there is no acceptable conversion)" (When I call the alternate matrix constructor, … |
| | Hi I'm learning C++ on my own here and am experiencing a problem with an introductory program I've created. My book provided me with a bit of code near the end to prevent my program from closing on me immediately, however it is closing on me as soon as I …  |
| | Good evening to everyone. I have some troubles with a task I have to do. I need some assistance. Excuse me if I haven't searched thoroughly in the forum and there is a similar topic somewhere. Thank you! [B]Here's the issue:[/B] Compute the minimal and the maximal value of function … |
| | Hi, I got a problem in my winttp code which is connecting to the URL successfully but not able to POST the data to the the server, here is my main part of the code [CODE] hSession = WinHttpOpen(L"User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12", WINHTTP_ACCESS_TYPE_NO_PROXY, … |
| | I get the error in these lines: [CODE]infotxtbox->Text = ("Name: Peter Jaško "Rank: Main Tech Manager, Vice-Leader, "Donated: ?, "Exp: ?"); [/CODE] This code is entered in a header (Form1.h) of a Windows Form Project/Application in C++ in VC++ 2010 Regards |
| | Just a little code I have been working on. New to programming and learned about rand. I applied it in this program. Like I said I'm new to programming and if there is a *easier and more effective way* to write some of my code, please tell me. The part … |
| | hoy to get the size of array all initialised to as char pste_msg[64]= {1,2,4,5,6,8,6,5}; memset(pste_msg,0,64); sizeof(pste_msg) is giving 64 any help???????? thanks. |
| | Hey, My codes asks for a number, if the user inputs something else it gives an error message and asked for a number again. If the user inputs a number, it should cout whatever number the user chose. But it doesn't work as intended... I get the error message the … |
 | [CODE] #include<iostream> #include<time.h> #include<conio.h> using namespace std; class adclist { struct list { int data; list* next; }; public: void makelist(); }; void adclist::makelist() { list** table = new list* [10]; for(int j =0; j < 10 ; j++) table[j] = NULL; for ( int m =0; m < 10; … |
| | I wrote a C++ program that could sendKey. the code is as Follows; [CODE]s.SendKeys(_T("{Enter}"));s.SendKeys(_T("{Enter}"));[/CODE] this piece if code is inside a function. Now, i need to access this method from a C code. When i added the includes, i get alot of errors. Some says, that you can't access C++ … |
| | hello guys... im writing small application for TAPI. But this error... I dont know, how I am getting this error. Compiler is complaining that [B]----- ICommDlgBrowser2: base class undefined[/B] here is the code [CODE] EXTERN_C const IID IID_ICommDlgBrowser3; #if defined(__cplusplus) && !defined(CINTERFACE) MIDL_INTERFACE("c8ad25a1-3294-41ee-8165-71174bd01c57") ICommDlgBrowser3 : public ICommDlgBrowser2 { public: virtual … |
| | Ok, I have this function that was provided by you guys, and it works, but I needed to tweak it a bit, and I can't seem to get it tweaked right. Trying to make it so it takes a 3rd parameter which takes an integer which will determine how many …  |
 | Hello friends, I have a small problem with integers... I want to get the seconds of the time in format HHMMSS. My code is: [CODE=cpp] int get_seconds( int time ) { cout << time << endl; int sec = time % 100; time /= 100; cout << time << endl; …  |
| | I have following text file input.txt Ram Shaym Rahul Radha Madhuri Sita I want to read this file and create new file from this file showing following change output.txt Ram Shyam Rahul Radha Sridevi Sita I want to replace Madhuri by Sridevi and send output in output.txt Can anyone please …  |
 | Hi all, I am currently studying for my degree in software development and have just started using java. In an effort to get ahead of the game I have bought some books on c++ and can happily report I have ubderstood everything up until the part about bitwise opertaors I … |
 | I have a simple question about objects and exception handling. What happens to an object after its thrown? Does the implementation take of cleaning up that object or should I be aware of any situations that may require extra care...I've read this from - Inside The C++ Object Model by … |
| | Guyz. Im in a competition. Please help me solve this. I need to code a program to solve this. I dont know where to start. Can anyone setup a recurrence relation? please [QUOTE]On an island chameleons of different color live. Every Monday , the following events occur The number of … |
| | Hello everyone, I've got an interesting situation. There are three classes [named "A", "B" and "C"], all derived from a abstract base class [named "base"]. However, in my program, I need to sort a vector of "base" object in a way such that objects of type A are less than … |
| | Getting this error code, is there something about std::remove() that I am not understanding here? 1>AoE2Wide.cpp(337): error C2664: 'strcpy' : cannot convert parameter 1 from 'std::string' to 'char *' I tried using '=' instead of strcpy() too, no luck. [CODE] class Item { public: int Pos; int ReferenceValue; std::string Type; … |
 | I am getting this error when compiling in Eclipse Indigo in windows: [code] mingw32-make all 'Building file: ../src/testing.cpp' 'Invoking: GCC C++ Compiler' g++ -I"c:\MinGW\lib\gcc\mingw32\4.5.0\include\c++\tr1\" -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/testing.d" -MT"src/testing.d" -o "src/testing.o" "../src/testing.cpp" g++: no input files mingw32-make: *** [src/testing.o] Error 1 [/code] Can someone help me … |
| | hi , i have some problem when i want to build my solution , i use different dll and one of them when a build it , he tel me that fatal error C1083: Cannot open type library file: active.dll someone have come idea ? |
| | Hello, Another exercise. In this particular problem we are given a five digit integer and program have to determine if its a Palindrome. Author states that we have to separate each digit into its own variables using % and /. I came up with solution but i don't know if … |
 | So i have a weird problem that isnt exactly an error, its just something im not understanding. i have the following peice of code and the functions it calls. What happens is when the indicated line is run, i get an output telling me the 2nd constructor has been called, … |
| | How do I return the data in the last node from the RemoveTail function? Currently I have something like below.This is a basic doubly linked list. [CODE]class List; class Node { Node* next; Node* prev; void* data; public: Link( void* pData ) : next( 0 ), prev( 0 ), data( … |
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| | I tried to #include <GL/glut.h> but when I compile, I get a [link error] at WinMain@16 or Win@16 (I forgot). I don't exactly know why and I don't know what to do either. Can somebody help please? Do you need that header file? (To fix it?) Thanks in advanced. |
| | This is the weirdest bug I have gotten yet. Its late, and I can't figure out why this is not working....I thought I had the constructor set up right. I am sorry that I am asking for so much help, but I have learned a LOT in these past few … |
| | Hello, I am having a few problems with my image class using OpenCV. I am getting the errors: [CODE]src/image.cpp: In constructor ‘Image<T>::Image(const char*, bool)’: src/image.cpp:21: error: there are no arguments to ‘cvLoadImage’ that depend on a template parameter, so a declaration of ‘cvLoadImage’ must be available src/image.cpp:21: error: (if you … |
| | Hi, I want to write a program to calculate the no. of bytes between the first binary pattern (110) to the next 110 binary pattern. i know i probably have to make use of: cout<<sizeof(char); Do i need to use a pointer or something to tell the program where to … |
| | #include <iostream> #include <iomanip> using namespace std; class Derivate { public: showDerivate(); void showFunc(); }; int main() { int nr; Derivate drv; drv.showFunc(); drv.showDerivate(); std::cin.get(); return 0; } void Derivate::showFunc() { cout<<"Nr"<<setw(20)<<"Function"<<endl; cout<<"1"<<setw(20)<<"x"<<endl; cout<<"2"<<setw(20)<<"cx"<<endl; cout<<"3"<<setw(20)<<"xpowc"<<endl; cout<<"4"<<setw(20)<<"1/x"<<endl; cout<<"5"<<setw(21)<<"1/xpowc"<<endl; cout<<"6"<<setw(20)<<"sqrt x"<<endl; cout<<"7"<<setw(21)<<"epowx"<<endl; cout<<"8"<<setw(20)<<"lnx"<<endl; cout<<"9"<<setw(20)<<"sinx"<<endl; cout<<"10"<<setw(20)<<"cosx"<<endl; } int Derivate::showDerivate() {cout<<"give the respective number … |
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