51,593 Topics
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| | Hey Narue! I need ur help on a upper-lower case switch problem.. Read the contents of a text file (using ifstream class).. and create a new file or edit the same one (using ofstream class) to switch the case of each char (upper to lower & vice versa).. Thanks a … |
 | WE have the && operator, the || operator, but xor is only implemented as '^' . And this causes a lot of confusion. Let's take this case: 2 == 2 ^ 2 generates a logical operation instead of bitwise operation , therefore returning a true value. What do yo think: … |
| | OMG im a IT student but i am not good in programming!! can i ask some question how to be a good programmer????? plss answer my question |
| | Hi, everybody. I've started learning about recursion, but I'm having a hard time completely understanding it. I've tried to write a simple recursive function that returns the sum of the series m(i) = (1/3) + (2/5) + (3/7) + (4/9) + ... (i / (2i + 1)), but I keep … |
| | ive got a xml file like this: [CODE] <?xml version="1.0"?> <orders> <customer> <order_num>6656</order_num> <name>jon doe</name> <street>123 fake st</street> <city>Beverly Hills</city> <state>CA</state> <zip>90210</zip> </customer> <customer> <order_num>1337</order_num> <name>bob johnson</name> <street>1232 something ave</street> <city>Petaluma</city> <state>CA</state> <zip>94952</zip> </customer> <customer> <order_num>5643</order_num> <name>bill story</name> <street>1st ave</street> <city>Beverly Hills</city> <state>CA</state> <zip>90212</zip> </customer> <customer> <order_num>4533</order_num> <name>tom hutchinson</name> <street>214 … |
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 | I would like to do something like this: [CODE]readfilethingy("www.mywebsite.com/update.txt"); //fail[/CODE] with update.txt being this: [CODE]3.4 http://www.newupdatedownloadlocation.com/ //OR just the http location[/CODE] with the result being: [CODE]*user clicks on update button* "NEW UPDATE IS AVAILABLE! :D" *Clicks download* *Download on .exe starts*[/CODE] So, is it possible? I have searched and searched …  |
| | Below is a simple code that i wrote about VARIANT. The weird thing is at the end of the code, both vtEmpName and vtDept is "Accounting". [CODE] VARIANT vtEmpName; VARIANT vtDept; vtEmpName.vt = VT_BSTR; vtEmpName.bstrVal = _bstr_t("Joe Schmoe"); vtDept.vt = VT_BSTR; vtDept.bstrVal = _bstr_t("Accounting"); [/CODE] On the other hand, if … |
| | hi all... i m working on a C++ prgm with following definition: Program Definition: Write a program to perform the following on a source file of any c++ program(File shud be included): 1. Count the line of code (LOC) of a source code file 2. Count the total number of …  |
| | How to add a custom button in Non Client Area of Dialog near Minimize and Maximize button. |
| | Still having trouble install opencv. I used cmake doing what was told and it created files in a folder then i ran the install VC++ project. After which I went back to cmake and generated the examples. ran those. My path environment variable is C:\OpenCV2.0\bin, I was wondering whether it … |
 | I have something like this: [CODE] VOID *pVBRes; ... pVBRes = new vposnormaltex[(Vfaces.size()/3)]; ... dynamic_cast<vposnormaltex*>(pVBRes)[i].pos = .. reinterpret_cast<vposnormaltex*>(pVBRes)[i].tex = .. reinterpret_cast<vposnormaltex*>(pVBRes)[i].normal =.. [/CODE] What cast should I use ( IF I should use, I dont know if it will work..)  |
| | I have started this program and it builds fine but when I debug it I get a run-time check error #3, the variable total_sales is being used without being defined. Can some one help me out with this?[code]#include <iostream> using namespace std; void main() { int sp[10][7] = {89, 92, … |
| | A rather old C++ book I have says that one class may be declared a friend class of a second, and then the first class can access the private data of the second. I tried this example [code] #include <iostream.h> class secret { friend class not; private : int a; … |
| | Hey guys, I'm mostly done with this but need a little help with multiplication and the output. (Just outputting +'s) [CODE]#include<iostream> using namespace std; class Polynomial { friend ostream &operator<<(ostream&, Polynomial&); private: int degree; int coefficient[10]; public: Polynomial(int, int[]); Polynomial operator+(Polynomial&); Polynomial operator-(Polynomial&); Polynomial operator*(Polynomial); }; Polynomial::Polynomial(int d, int c[]) … |
| | Hey so i am trying to create a file and this is part of my code. [CODE] HANDLE hFile; if((hFile = CreateFileA("Testfile.txt", GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, 0, 0)) != INVALID_HANDLE_VALUE) { //and so on [/CODE] Now the problem is that i cant create the file in the program(exe) path. I … |
| | Hi, I am new to programming. As an absolute newbie, I downloaded codeblocks and wrote my first programme i.e. Hello World. But when I hit F9 key of my keyboard, the programme didn't run. Can someone guide me as to how a programme is run after writting it in the … |
| | I have looked and looked and looked at this. I can not figure out why I am getting a random crazy number for salary. Can someone please help? (Sorry for the length) [CODE]//Personal Class Definition #include <iostream> #include <string> using namespace std; //Personal class definition class Personal { public: Personal(string, …  |
| | Hi, I'm doing a code in MFC to retrieve DateTime from SQL 2005 and then after do datetime manipulation on it. In the SQL table, the date field is 3/16/2010 2:28:20 PM (obtained by using getdate()). I then retrieve the date from RecordSet and stored into _variant_t. To confirm that … |
| | I need help writing this program and it has to have user input. It has to be C++ language 1) Write a program that displays the following diamond shape. You may use output statements that display either a single asterisk (*) or a single blank. Maximize your use of repetition … |
| | I really need help with this project. 1) Write a program that uses a switch program structure 2) Upon user input your switch structure shall calculate and display one of the three loops for loop, while loop, and do-while loop calculations.  |
| | Hello there. Finally decided to make an account here :) Anyways, I just started trying to implement function pointers in my code, and I seem to be having a few issues. (this is, of course, test code): [CODE] #include <iostream> using namespace std; class MyClass; class SomeClass { public: SomeClass(); … |
| | explian a function in c++ (I'm a beginner) |
| | [CODE]#include <cstdlib> #include <iostream> #include <cmath> #include <iomanip> #include <cctype> using namespace std; double distance(double,double,double,double); double radius(double,double,double,double,double); int main() {double X,secX,Y,secY,z,r; r=0; cout<< "Please enter the x value of the center of the circle:"<< endl; cin>>secX; cout<< "Please enter the y value of the center of the circle:" << endl; …  |
| | basic over view>> banks offer car loans for periods ranging from two to five years (24 to 60 months). Write a program to allow the customer to enter the price of a car, the down payment amount and the annual interest rate of the loan. The program should display the … |
| | hello, I am running a merge sort routine on an array of numbers. My intention is not to output the sorted array but to reorder the indices of the array so that they reflect the sorted order (descending). For example, if the array were {2, 7, 4}, my indices would … |
| | Hey, I'm writing this report and I'm writing about variables.. I'm just checking to see if this is a good description: [I] Variables are used in programming to allocate specific memory locations for data, Variables enable the programmer to give a specific name to where the information is stored in … |
| | I was starting a cash register program. I got to the point of a simple test. I ran into a problem where when running the loop to input my variables, it completely blows through the loop the first time. I looks like this: Product: Product: ---------now I could input [CODE]#include … |
| | I'm doing an assignment for my AI class and while trying to compile the sample code from this weeks chapters I get the 2 following errors. I'm certain I've tackled this before in my 3d programming class, but that was almost a year ago and I'm drawing a blank here. …  |
| | I'm working on an AVL tree, and I've been getting segfault errors when trying to access one of my nodes. The error is raised when I try to call the balance() function for one of my node's children. [code=c] ////////////////////////////////////////////////////////////////////// /// @file main.cpp /// @brief The main implementation file ////////////////////////////////////////////////////////////////////// … |
| | I'm trying to create this pattern: [url]http://mathworld.wolfram.com/Rule60.html[/url] I cannot get my code to print this. It runs, it just does not print the right pattern. I know I am doing something wrong, I'm just not sure what. [CODE] #include <iostream> #include <fstream> using namespace std; int main() { //Declare variables … |
| | Hi, Basically I have a game type scenario in which objects are falling from the sky onto uneven terrain below but my problem is this: I can't figure out how to determine when an object has actually collided with a slope (the point of impact) because obviously the y value …  |
| | Im trying to figure out how i will calculate items needed. for example for every 500 sqft of space, one gallon of paint and 8 hours of labor is required. how will i put that n to a formula |
| | /*could someone show me how to create a text file named names.dat with names in a directory with an executable file? i want this program to find a name after i enter it. here r the names that i want to put into names.dat.:*/ "Collins, Bill", "Smith, Bart", "Allen, Jim", … |
| | i need a function to line up the info with these columns.: Name Test 1 Test 2 Test 3 Average here is the code that i have so far.: [CODE]#include <iostream> #include <iomanip> using namespace std; void arrSelectSort(float *, int); void showArrPtr(float *, int); void showAverage(float, int); int main() { … |
| | I am trying to figure out the best way to create a dynamic array/vector (not sure which) that would take in a string and double and store it. I then need to print the string with the corresponding double into a list and produce a total for all the doubles … |
| | [CODE]while (y==1) { float discount,addcost; pricetopay=calpricetopay(ty,pricetopay,addcost,discount); cout<<endl; cout<<endl; cout<<"\t\t\tTOY TOY Shoppie"<<endl; cout<<"~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"<<endl; cout<<endl; cout<<"Name of item:"<<ty.name<<endl; cout<<"Price of item:"<<ty.price<<endl; cout<<"Made in:"<<ty.madein<<endl; cout<<"Manufactured Date:"<<ty.date.d<<"/"<<ty.date.m<<"/"<<ty.date.y<<endl; cout<<"Price to be paid: "<<pricetopay<<endl; cout<<"Do you want to proceed with another transaction?"<<endl; cout<<"If yes, Please type '1'. If no, please press 2 to quit."<<endl; cin>>y; }[/CODE] … |
| | I have been trying searching the net, for source code for converting RTF file to text file in c/c++. The source that i get is in RTF file format which conatins is specific tag but i need to convert it to simple text file and upload it.. Any source link … |
| | Hello guys. I'm trying to create a program, that reads a file, and create an output. Here's the questions: Write a program to compute numeric grades for a course. The course records are in a file that will serve as the input file. The input file is in exactly the … |
| | I have been trying to figure out where this is comming from: [CODE]1>main.obj : error LNK2019: unresolved external symbol "public: void __thiscall StudentList::getStream(class std::basic_ifstream<char,struct std::char_traits<char> > *)" (?getStream@StudentList@@QAEXPAV?$basic_ifstream@DU?$char_traits@D@std@@@std@@@Z) referenced in function _main 1>main.obj : error LNK2019: unresolved external symbol "public: __thiscall StudentData::StudentData(void)" (??0StudentData@@QAE@XZ) referenced in function "public: __thiscall StudentList::StudentList(void)" (??0StudentList@@QAE@XZ) … |
| | I've been working on this program and can't seem to understand how to print an output file of the calendar of July. Is there any help I can get? This is the code: [CODE]//---------------------------------------------------------------------- // // This lab exercise is to practice rand(), srand() and // output formating with help … |
| | This program sorts in descending order. Hey guys, I am wondering if I could get some help with making this bubble sort program sort recursively. Any help would be appreciated, thanks. [code] #include <stdio.h> #include <conio.h> #include <iostream> #include <stdlib> #define TRUE 1 #define FALSE 0 void bubble (int[], int); … |
| | Hi, I was hoping someone knew a good 2d graphical library for .NET that can: -draw objects (lines, bmps, shapes etc) -these objects can be moved around and resized -this component allows for zooming in on objects -the library must be open source -I am willing to pay for it …  |
| | [code] for(.........) { for(.........) { swap } } [/code] Is there really a better way to sort a one dimensional array then to just use a simple bubble sort? Ive heard arguments against bubble sort before, but what do you guys think? |
| | Ok. So I have been researching and compiling info for the past 15 hrs about this. Hope someone can have some helpful input. What I am trying to do is create a program to use for my construction business to help with estimates of a job to make things easier, … |
| | I'm trying to figure out how to use the max_element algorithm on a vector of structs, rather than POD's like int etc. This is my struct: [code=cpp]struct NameComponents { std::string sValue; std::string sDescriptor; int nOrder; int nStatus; // Construtor. NameComponents( std::string inValue, std::string inDescriptor, int inOrder ) : sValue( inValue … |
| | I noticed something interesting today. When I run the executable directly it gives no hint where the segmentation fault happened. But if I run it from gdb it gives the line number where the seg fault happened. So I was wondering whether there is any similar utility which I can … |
 | Hi! I need help to my c++ program. I created a program that is much like the "Who wants to be a Millionaire" television show. It has questions and the right answers and three lifelines. How can I possibly do eliminate a lifeline after being used.? this is the program … |
| | [split from [url]http://www.daniweb.com/forums/post1162537.html#post1162537][/url] how can i create like that program but i need to have more questions and i dont nid to use the life time because lifetime is dificult so please help me or give me a program to use in our c++ subject here in MAPUA. please i … |
| | Hello everybody :icon_neutral: I'm having an error in finding the biggest/smallest numbers in an array; the debug result gives me wrong numbers. Here's the code that I have been working on: [CODE]#include<iostream.h> int linearsearch(char b[],char searchkey, int size); void main(void) { const int arraysize=7; char a[arraysize],key; int result,i; int s; … |
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