51,593 Topics
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| | Hi friends, I m experiencing a problem in a pro*c module. Its a function in a pro*c file which is opening a cursor, and the equivalent of this pro*c code is a block in parse.cpp file line number : 1255 which is sqlcxt(&ctx1, &sqlctx, &sqlstm, &sqlfpn); the module got down … |
 | From the standpoint of writing the sorts of programs first and second semester C++ courses use (fairly simple command line programs), has anyone found any significant differences in the VS IDE or how C++ programs compile, compared to the 2005 version? thanks, VAl  |
| | I'm starting a project at work where I will be creating multile threads, within a C++ program. I have been out of the C++ community for a while, spending my time the last few years using Java. Given this, I am trying to learn what the standard interface is for …  |
 | I think this is the right forum for this type of question as opposed to the C++ forum. I'm learning C++ via Windows Vista, console stuff, at the moment. I've also got Ubunto installed and trying to figure out which programs I need in order to write simple console type … |
| | Hey, guys. I'm working on a program that's supposed to take a phrase that the user inputs, then display the frequency of all letters appearing within that phrase, from most frequent to least frequent. So far, I've managed to get it to display the frequency of the letters in alphabetical … |
| | i have to write a program that checks a palindrome to see if it is in fact a palindrome but i get this warning warning C4800: 'char *' : forcing value to bool 'true' or 'false' (performance warning) and its not quite working any help would be great thanks. [code]#include … |
| | Hello, i was wondering how i can get my program to function... piecing it together bit by bit. Problem i'm having right now... i'm trying to get my class to point to the array that i have built inside the main function: [code] char n=5; char rndseq[]={16,34,57,79,121}; int ntimes=100000; Prob1Random … |
| | Hi I am currently working on serial port communication for win32 using C++. I want to know by how many ways the hardware handshaking is possible. I only know three ways 1) None 2) Software, 3) Hardware. Is there any other type or sub type of flow controll is available?  |
| | Hi all, For later use I want to create dll file, internally using MFC. I used MFC because it is so easy to do my job. So used the MFC-DLL Visual C++ project and code my project. Its ok. Later add another Console Application which support MFC as well. I … |
| | I have a question. I have been studying C++ and it seems to be getting a tad repetitive. What I really would like to do is more with electronics but also with C++. My laptop only has USB ports. I never wanted to be a programmer but would like to …  |
| | Hi all, What is the easiest way to convert a CString into a standard C++ sting. Thanks |
 | I want to increment the [B]i[/B] without putting the whole statement in a loop. [code=c++] #prag... ostream &operator << ( ostream &output, const Course &xCourse ) { int i = 0; output << " " << i++ << ".| " << xCourse.code << " | " << xCourse.section << " … |
 | Hello, I am writing a program to determine if an inputted phrase or word is a palindrome. I am to use a separate function to input the string and another to check and see if it is a palindrome or not and return true or false. The first is a … |
| | I have an assignment where I'm supposed to place a knight on a chess board, and using a random number generator, make it move. It cannot visit a space more than once. I've tried this several ways, and started over from the beginning more than once. this is how I … |
| | How do I clear the screen without using system("cls");? |
| | A programming exercise I'm doing requires that a program be written whereby functions are used to 1) fill an array, 2) show the array and 3) alter the data of the array. The arrays are to be passed as pointers to the functions and the use of [icode]const[/icode] keyword be … |
 | I'm trying to create a simple little program that will accept arguments of files (i.e. file1 and file2), and look for occurrences of the "match" string in the included arg files. Then I want to print out the whole line where the match is found preceded by the number of … |
| | Please help, I can compile this program as long as I don't put in a wrong number. The numbers are supposed to be between 100-999. If I type in anything else, it lets me input the information but I can't access anything after that. Ex: i type in info for … |
| | I need help with creating a project that if the given radius of a circle returns , the area using the formula PI*^2. Create a header file, an implementation file and a driver program . Can anyone help me ?? |
| | I got this math problem I need to input: Calculate(find the sum of) Y=1+X/2+X*X/3+X*X*X/4+... Keep calculating until Y bigger than Epsilon. X and Epsilon are inpute by the user. Please help... |
| | Hi i need to generate a random number (between 0 and 2) in an array[15][3]..the first column should be from 1 to 15 and thats k ive done that but the 2nd and 3rd column should generate a random number of 0 to 2 but its not working...ive done the … |
| | Hi all .. Hope that this forum can help me . I have to make a program that can talke to my Atmel ( micro) thu the ISP (In Serial Programming). I only have the source code in devcpp (c++) and dont know anything about c++ ... the source code … |
| | Well my class just learned functions but i don't seem to be quite getting it. So naturally trying to do my homework assignment i feel lost. I did make some good progress but i can't seem to get past this error. I don't know what it wants me to do. … |
| | So I need help to do a work for school which consists of doing an algorithm that allows you to draw a pyramid of letters. The algorithm should ask the user to input one letter and then drew the pyramid. Example: If the letter that the user input is 'd' … |
| | I just wanted to start a list of system(" ") funtions. I'll write all of the ones I know and if you know any more please post them. Thanks for contributing!!! ^_^ system("pause"); - This displays "Press any key to continue..." and waits for a key to be hit to … |
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| | Could anyone tell me, what is the function of header file"time.h"?? |
| | Hi all.. can any one explain me how to implement a byte array in c++. regards wijitha.  |
| | hello! i read some articles about a 2-3-4 top-down search tree on the web, but when i tried to go deep into the problem i realise that most of the information aren't detailed. On this forum i can't find anything. Does anyone know something about this algorithm???? Thank you! |
| | i wrote my program but the teacher wants us to use at least 2 value returning functions and 1 non-value returning function in your final submission. what does he mean by this. do i have this in my program and if so where. if not how do i go about … |
| | What is the difference between the back() and end() functions defined for list containers in STL? It is specified in my book that back() gives reference to the last element while end() gives reference to the end of the list. I'm unable to understand how the two functions differ. |
| | Hi Everybody, Im a new programmer......... i had used the following code to output data to com port..... #include<iostream.h> #include<conio.h> #include<dos.h> #include<bios.h> #define SETTINGS (_COM110|_COM_CHR7|_COM_STOP1|_COM_NOPARITY) void main() { clrscr(); _bios_serialcom(_COM_INIT,0,SETTINGS); outportb(0x03f8,0); getch(); } when i run the programme,when i connect pin 3(tx pinn) to a LED it blinks one tym.......... … |
| | Hi.. I Want to delete all files in a directory :- I tried DeleteFile(".\\ProcFiles\\*.*"); RemoveDirectory(".\\ProcFiles"); But i m not able to delete all files in a directory . I don't have any subfolder in the directory. Kindly help |
| | Hi all, I want to read a Rich Text Format file and get texts form it only. So, what I have done is according to RTF specification start to code detecting tags. Actually it is too hard, because RTF format has more that 1000 tags. If I going to find … |
| | Hi Everybody, Im a new programmer......... i had used the following code to output data to com port..... this program cannot use in Microsoft visual c++ ..... Please help me............................. #include<iostream.h> #include<conio.h> #include<dos.h> #include<bios.h> #define SETTINGS (_COM110|_COM_CHR7|_COM_STOP1|_COM_NOPARITY) void main() { clrscr(); _bios_serialcom(_COM_INIT,0,SETTINGS); outportb(0x03f8,0); getch(); } |
 | When compiling under MSVC I get warnings about using 'this' explicitly in a constructor's initializer list. I don't get warnings if I use the return from member functions though, even member functions that return 'this'. I also experience no noticeable problems in any test* but; is using 'this' there bad, … |
| | Hello there, is there a corresponding standard library function for the win32 function _mbsbtype()? Thanks! :) |
| | Hi, How do we create the sequence diagrams during reverse engineering in C++ using Rational Rose? If any one knows please help me out thanks Manikanta |
| | [CODE="cpp"]// strgback.cpp -- a function that returns a pointer to char // C++ Primer Plus, Fifth Edition // Chapter 7, Page 312. // Listing 7.10 // 10 Dec, 2007. #include <iostream> char * buildstr(char c, int n); // prototype int main() { using namespace std; int times; char ch; cout … |
| | i have my whole program written but when it prompts the user if they want to play again(y/n) there is a 1 after it and i cammot figure out why. any help would greatly appreciated here is my program: [CODE=c++]#include <iostream> #include <cstdlib> #include <ctime> #include <conio.h> using namespace std; … |
| | Hey, I decided I'm going to try to make a small game, now I need help though since ussally I use Ruby and Python not C++. The help I need is in find an server / client libary (sorry for my sentences beeing so choppy dunno why today) If someone … |
| | Ok, I am setting all elements in the array to 0... If all elements are 0, i want it to display "No inventory" if there is something in the element, i want to display only its contents.. Heres the code, how do I make it display No Inventory only when … |
| | I need this program to be able to display 4th quarter inventory in this format: October 200 November 250 December 350 I need it to display in an array. This what i have so far: [code]#include <iostream> #include <fstream> #include <iomanip> using namespace std; int main() { const int N_MONTHS … |
| | Hello there, I'm currently at the peak of my coding when I suddenly experienced this really really weird behavior. My compiler (gcc) tells me that one of my functions are not declared in the class (which resides in my .h file). I used the same global variable object to the … |
| | Ok, i used a couple C++ programming books to help me make a calc. A friend of mine suggest that i make a "Would you like to solve another problem? (Y/N)" and Y loops back and N closes the program. here is my code: [code=c++] #include <iostream.h> int Add(int num1, … |
| | [code=c++] #include <iostream> using namespace std; void main () { char *tokenString, *c, string[80]; cout << "Input a string: "; cin.getline(string, 80); cout << "The entered string is: " << string << endl; c = string; while (*c) { if ((*c >= 'a') && (*c <= 'z')) *c = (*c … |
 | Yesterday I saw a question that was asking to prevent creating objects on heap. After some thoughts, I came out the following: [code] class Foo { public: Foo(const Foo& f) {} static Foo getAnInstance() { return Foo(); } private: Foo() {} }; [/code] But this can only guarantee the first … |
| | hi all ;; i'm so glade to join u ,, i want ti ask about my problem in using borlandc++ 3.11 under windows vista home edition , i wrote the following program ..& i runs perfect on windows xp(on my desktop computer) but while trying it on my laptop dell … |
| | i have to write the count_sentence and the to_lower function assuming the the first parameter is the character array holding the text. The count_sentences function should find the number of sentences in the text by counting periods, question marks, and exclamation points. so far this is the code that i … |
| | hi friends iam working with c graphics i need to convert color images to grey scale using c graphics. If any algorithm available to help me please post.. waiting for replies.  |
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