51,593 Topics
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| | I want my program to throw exception on console window. But when exception occures Microsoft Visual C++ Runtime library dialog box shows up. What can I do to stop visual studio from stopping execution of my program when an exception occues and let my program handle the exception? I am …  |
| | Hello.. Do you have any idea about this topic? Design a set of simple test programs to determine the type compatibility rules of a C compiler. Thanks  |
 | I'm trying to create two classes in C++. Each class implements different serial and its function that is called when it receives a data on the serial port. Class 1: int serialLn = open("/dev/ttyS2", O_RDWR | O_NONBLOCK | O_NOCTTY); struct termios options; struct serial_struct serInfo; struct sigaction saio; //Serial speed … |
| | Hello to all, I'm new to C++, but I have a program in C++ that runs from DOS console. I'd like to execute the same program adding a simple GUI with a button to select a file and inserting a value in a text box. How can I do this? … |
| | How do I compile a c program in Visual C++ 2008 express edition? I tried finding a compile button but i couldnt find it  |
| | Hi there, I need getch() type function for int through which I can take input from user, to store it in int variable. I actually want to use in menu from which user selectes any number to call that function to carray that task. Reason of using getch() function is …  |
| | For this assignment, I am supposed to get a starting population, an annual death rate, an annual birth rate, and the number of years to display. I am then supposed to use these values in the formula n = p*(1 + b)*(1-d), where n is the projected population, b is … |
 | This is homework so I am not looking for a better way to do this. I am only asking for a second pair of eyes to spot my mistake. I have a function that takes a two-dimensional array and fills the first row with the elements from a one-dimensional array. … |
 | //write a program whih takes input until user enters a negative number. print the sum of given inputs. #include <iostream> using namespace std; int main () { int a[10]; cout << " enter numbers " << endl ; int i = 0 ; while ( i < 10) {while (a[i] …  |
 | #include<iostream> #include<cstdlib> #include<string.h> using namespace std; template<typename X>class list { X *l[10]; public: void insert(X *ele); void display(); }; template<typename X>void list<X>::insert(X *ele) { static int i; l[i]=ele; i++; } template<typename X>void list<X>::display() { static int i; cout<<"\nThe Name #:"<<i<<"\t"<<*l[i]<<endl; i++; } int main() { string s; list<string> l1; cout<<"\nEnter … |
| | I have a task to disply user entered values in a single line while using cin and cout objects. Any one can help me to understand this?? My question is when a user enter a value in any veriable, cursor sholud not move to the next line... Please help if … |
 | I have an assignment due at 8:00PM. I've had a ton of work to do this week and haven't really got to learn the topic before the assignment. I'm just trying to get the points for the assignment and learn the stuff after its due. Problem: You are to create … |
 | In my program the commands are on left hand side , I want to move thses buttons to middle of window on click of mouse. I wrote this code n=but buttons are disappearing. Any solution case WM_LBUTTONDOWN: RECT buttonScreenRect; GetWindowRect(hButton, &buttonScreenRect); POINT buttonClientPoint; //buttonClientPoint.x = hButton.left; buttonClientPoint.x = buttonScreenRect.left; buttonClientPoint.y … |
 | #include<stdio.h> #include<stdlib.h> #include<iostream.h> #include<string.h> void main(){ FILE *fp1,*fp2; char *a,*b; int num; fp1=fopen("myfile.txt","r+"); fp2=fopen("myfile.txt","a+"); cout<<"enter the number of names you want to enter \n"; cin>>num; a=(char*)malloc(80); b=(char*)malloc(80); while(num){ gets(a); fputs("\n",fp2); fputs(a,fp2); num--; } cout<<"\n diplay the names"; while(!feof(fp1)){ fgets(b,80,fp1); cout<<b; } /* //code to search string a in file ... … |
| | I have search though multiple similar topics but still can't find the answere. Would you please help ? The error is : **invalid initialization of reference of type 'ArrayT<float>&' from expression of type 'const Arrat<float>'** The above errors occur when I tried to do the following code , with operator* … |
 | Guys, can you help me with my project I can't see what's wrong with my program. The errors are: Line 138: Expected primary-expression before "int" Line 138: Expected ';' before "int" Line 158: Expected '}' at end of input #include<iostream> using namespace std; int telephone_bill() { int choice, min, tbill, … |
| | Hello! I am coding in windows form application c++/CLR I need help with coding a way to read everything in a folder, put the names of the files and put the names in a combobox. These files are for now images (.jpeg). And I would also like that, when I … |
| | **I Have Problem Making This Program .Anybody please make this program for me.THANKS** Write a program to calculate a^b without using any built in function. The values of a and b are to be taken from the user. |
| | Hello, I am trying to interface with a laboratory instrument using C++. I realize that my C++ experience falls short of desirable for this task; I am a self-taught amateur C# programmer delving into C++ and much of the code I have written is new to me. However, I have … |
 | I have been looking for Prim Algorithm on daniweb.com website and I found multiple threads dead but still unsolved. Few people needs expalination of Prim Algorithm and others need its working code. Well, to help everyout out, here is a link to working Prim's Algorithm code which is easier to … |
| | #Include<fstream> #include<> #include<iostream> #include<string> using namespace std; int main() { string str="time is a great teacher, but unfortunatly" "it kills all its puplis. Berlioz"; ofstream outfile("ali.TXT");//ERROR for(int j=0;j<str.size();j++) outfile.put(str[j]); cout<<"file written\n"; //system("pause"); return 0; } please correct my code"ofstream outfile("ali.txt")" |
| | **** Hey guys, I really need help on this. I just submitted my exam but I won't get feedback till next week. I'm hoping that you guys can help me review. Thanks! Question 1 For each non-static data member of a class, C++ allocates only one memory space. Question 1 …  |
 | when i uncoment this line 144; i have error , and i debug and it was good, can anybody help me why i got this kind of error mybe should i declare List<employ>* list2, but it must wrok good like normale way List<employ> list2 #include<iostream> #include<fstream> #include<string> using namespace std; … |
 | In this exercise, you will create a program that adds, subtracts, multiplies, or divides two integers. The program will need to get a letter (A for addition, S for subtraction, M for multiplication, or D for division) and two integers from the user. If the user enters an invalid letter, …  |
| | CSCI 15 Assignment #3, introduction to classes/objects. 100 points, due 10/21/13 A mixed expression is an expression of the form a + b/c, where a, b, and c are integers, b >= 0 and c > 0. By convention, b/c is always non-negative, and has the property that 0 <= …  |
| | Good day! I would like to ask on how to reverse arrays and putting it on another array of char? string str; int k=0, count = 0,namelength, acc=0; char name[80]; char extract[80]; char reversing[80]; for(int j=0; j<strlen(extract);j++){ reversing[strlen(extract) -j]= extract[j]; } for(int w; w<=strlen(extract);w++){ cout << reversing[w]; } Is it … |
 | class test { virtual void created(){}; //i must do these. //or when i call the function the compiler give me an error test() { void created(); } }test; void test::created() { cout << "hello world"; } these code have 1 error. but how can overrride the created function? |
| | Hi All, I want to grab TV Tuner Raw Samples for implementing FM receiver. I need to have mechanism to Tune desired frequency and then grab Samples of that frequency, in this case it would be IF samples and then implement FM receiver over it. I have already seen various … |
 | Hello Guys, Is it possible to connect C++ Console app to MS Access? |
| | I m trying to convert C code to C++. Facing some difficulties help me out! //This is struct typedef struct index { int id; char word[20]; int count; }indexs; // Function prototype void fileScanner(FILE * ifp,int i); void fileRead(FILE *ofp); int findString(char s[],char u[]); int searchEntry(indexs [],char key[],int n); void …  |
| | CSCI 15 Assignment #3, introduction to classes/objects. 100 points, due 10/21/13 A mixed expression is an expression of the form a + b/c, where a, b, and c are integers, b >= 0 and c > 0. By convention, b/c is always non-negative, and has the property that 0 <= … |
| | hi all, i want to start building an authentication server which authenticates the clients to the e-commerce web site . do i need -for example- apache server,or WAMP and then write my code on it, i've not did a server side prgramming before.iam going to use Qt . i don't … |
| | Hi, I m facing difficulties in replacing this C code with C++? For e.g : Can we use Fopen in C++? Please suggest me changes here to make it c++ equivalent! How to write this in C++ --> void fileRead(FILE *ofp); void fileScanner(FILE * ifp,int i); void fileRead(FILE *ofp); int …  |
| | I have to write a fn squeeze(const string &s, char c) for ex squeeze("haaaaah" , 'a') should give the output hah  |
 | hello fellow programmers, i am doing an assignment for class and i am having a bit of trouble. So the assignments reads Given two sorted (in ascending order) lists of size M and N, write an O(M+N) algorithm to find the sorted (also in ascending order) union of the two … |
| | I am new to classes and was trying to create an elmentary program to understand classes and objects. I ve created three files 1) header file for class declaration 2) class definition .cpp file 3) class implementation main .cpp file I cannot understand the error I am getting. Please help. … |
| | I have to find the permutation of vector of integers. I need to implement and interleave function vector<vector<int> > interleave(int x , const vector<int> & v); Using interleave we can implement a permute function. vector<vector<int> > permute(size_t n); that returns a vector containing of the first n positive nos. I … |
| | This is just an exercise. And i need to complete this. This is the question : Write a program in C++ that calculates the amount to be paid to an employee based on the hours worked and rate per hour. A user will enter hours worked and rate per hour … |
| | Hi, I m trying to convert c code to c++. I m stuck at some part! Please help. What will be c++ equivalent of this snippet? void Scanned(FILE * ifp,int i) void Read(FILE * ofp) int Checker(char s[],char u[]) void Stored(FILE *) void Printed(FILE *ifp,FILE *ofp) These are file pointers … |
| | Hi there, Is there a way to change strings array size on run time. I mean array size initial value is 1, when i run the program, how much user add values array size increases. I have tried following but its not working, please i need a solution in array … |
| | Sir, I wanted to know the implementation code for krushkal algorithm in C++. Anyone can help me to give the code. ThnQ |
 | Hello, I'm working on a homework problem for class. I have a text tab delimited file and each row has a orginal base, target base, and a number that is represented in the orginal base. The program should read this file and be able to convert the number from the … |
 | This is more of a tale of "I think I broke it". Basically as an assignment for CS I have to write an assembler for a subset of the MIPS assembly language. Currently it is not working, getting a sigseg, so I decided to debug the code and step through … |
 | Well, I do not find solution, if any help me would be great, here the code and where the error log is visual c + + 2012 // ver1.1.cpp: define el punto de entrada de la aplicación de consola. // #include "stdafx.h" /* examples/standalone_example_docs1.cpp */ /* Standard C++ includes */ … |
| | I have a set of data imputed into a set of arrays as the following: for (int i=0;getline(file,(cities[i]),',');i++) { getline(file, countries[i], ','); getline(file, latitudes[i], ',') ; getline(file, longitudes[i]); } How do I sort the array line of latitudes and longitudes without changing countries and city it is associated with? |
| | How to create a rubber banding line using the left-mouse button in win 32? |
| | I need to implement an interpolation search on a linked list, I have some code but I'm getting errors whenever I search anything that isn't the first element. Even if the element I'm searching for is in the list, if it isn't the first one it returns a -1. int … |
 | [create a data file] [Appened Record] [Edit a Record] [Display a Single Record] [Browse all record] [Exit] program discription mini grading system w\ccompute your final grade. create a data file named studrec.txt accepts the ff. feilds info: ID no Last name First name mmiddle name Quizes and grades Q1 Q2 … |
| | i want build 1 const with std::endl but by some reason isn't accepted:( #define NewLine std::endl i understand the '#define' isn't adviced to be used, but in these case i belive that i can't use the 'const':( what isn't right with that line? error message: "C:\Users\Joaquim\Documents\CodeBlocks\My Class\console.h|170|note: void Console::write(A, B … |
| | Friends please help me to made clear ideas about these topics which is better for todays trend c++ or SAP...  |
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