99 Topics
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| | Hi there everybody just needed some help sorting an object array. So the array takes in a title, link, comment, length, and rating of the video. Once the values are put into the array the user inputs whether they want to sort it by title(alphabetically), length of the video (ascending … |
| | I want to make a menu driven program in which I have 4 options 1) input() -Inputs the data WITH A UNIQUE KEY (AND CHECKS FOR REPETION) and writes it to a file 2)output() - Outputs the data using a UNIQUE KEY (WHICH WHEN NOT FOUND GIVES AN ERROR) 3)delete() …  |
 | I'm reading 'C++ For Dummies 7th Edu' and I'v ran into this little snipet that's confusing me. BOOK You can add const-ness, however, as in the following void fn(char* pName) { // declare following is allowed even though // declared Student(const char*) Student s(pName); // ...do whatever... } The function … |
| | There was a question in topcoder. Question: Three kids are playing the following game: A word is written on a sheet of paper, and one after another, the players take turns adding letters to the word. During each turn, a player must add a single letter to either the beginning …  |
| | Hey guys, I just learned the very basics of arrays and I have to write this program of a tic-tac-toe game. The requirements are this: Write a modular program that allows two players to play a game of tic-tac-toe. Use a two-dimensional char array with 3 rows and 3 columns … |
| | Hey, I used getline to read from file. When i have the char '#' I should ignore that line.. I want to put in the privat values of the class what I got from the file.. Here is what I did.. it works only for one line and then when …  |
| | MACHINE PROBLEM NUMBER 3 ROTATING SENTENCES Input File: rotate.txt In ``Rotating Sentences,'' you are asked to rotate a series of input sentences 90 degrees clockwise. So instead of displaying the input sentences from left to right and top to bottom, your program will display them from top to bottom and …  |
| | **** 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 … |
| | I need to write a C++ program to analyze three different data files, and try to confirm Benford’s law.I need to create a console application that opens each file, counts the number of values that start with ‘1’, ‘2’, ‘3’, etc., and then outputs the percentages of each digit. Based … |
 | I have a questions about classes in C++. I'm working on a homework assignment where I have a class called Person and a derived class called Doctor. I also have two other classes that are called Date and Bill. I'm suppose to create a class drived from Person and call …  |
| | I have developed a program for a word game that reads from a text file containing a list of all legal English words, then stores those words in an array used by other parts of the program. The program works, but I am not very happy with the word list … |
| | I am new to this forum so please excuse any errors i make! I have recently started programming in c++ and one of my first projects is making a console trainer for AssaultCube (FPS Game). I have some errors and have not been able to fix them. Here is the … |
| | double & val = 66.6; //illegal const double & val = 66.6; //legal I was just doing some demo programs and came through the above concept but not able to identify what exactly the need of the above concept . what magic exactly const is doing in the second case …  |
| | hi! i started my programming studies not a long ago. we work on c++ and somehow the program is not compiling on my computer. the software is legal, i installed and started it with no problem but when i do debug or build i always recieve this error at the …  |
| | Using Nero 8 Ultra Edition ... Everytime I DVD burn, with 5 seconds left during a dvd I get the below error message .... the program worked fine for about 6 burns ... I downloaded and installed "vcredist_x86 runtime" from ms ... also asked for / received / downloaded a …  |
| | I've read that anonymous structs are a compiler extension and codeblocks allows them as long as -pedantic-errors are not enabled. My question is, since it is not legal in C++, what would be the legal equivalent of: typedef union XYZ { int Color; struct { BYTE X, Y, Z; }; …  |
| | I have the program working up to the point where at the end of every test it fails and get. where do I need to look to start fixing the failed tests.(files are attached at the bottom) This is my output: START OF TEST 1: Testing insert, attach, and the … |
 | So first of all let me say I am pretty new to C++ and find it very difficult to learn (especially when compared to say C#) Anyway I am working on a program that requires the use of a 2D array or a similar container. After talking with a professor … |
| | Simple tic tac toe game against CPU, however, I'm printing out the results of the AI part and its coming up with some really large numbers that aren't suppose to be there. After the computer's first move, it just crashes and goes into endless loop. Where did I go wrong … |
| | Found some neat graphing software for 2D and 3D applications at CodeProject. Looking forward to using with MS VC++ Express, which I just downloaded and installed. Can I do this? Is it legal? The creator offers what seem to be some options, but I'm not sure the header files are … |
| | Hey everybody,it's the c++ creator.I am a beginner at C++,and am getting confused at functions.I am learning from a site called cprogramming.com and this is what they say- [QUOTE]Lesson 4: Functions (Printable Version) Now that you should have learned about variables, loops, and conditional statements it is time to learn … |
| | hey guys i got one more question :O i have this code for a class function [CODE] void Platform::set_clips(SDL_Rect platClip[], int i) { for( int j = 0; j < i; j++ ) { platClip[j].x = 0; platClip[j].y = 0; platClip[j].w = random_number_w(); platClip[j].h = 5; } } [/CODE] is … |
 | Hi.I have a piece of code that compiles without even a warning on the borland 5.5 compiler yet complains bitterly when compiling with g++.I've heard that g++ emits more portable code but shouldn't they both be standard compliant?From what i've read in the '98 standard book this should be legal … |
| | I don't understand why it is allowed to declare variables in a while or for loops. For example this is allowed (or at least compiles ??) [CODE] for(int i = 3; i > 0; i--) { int d; }[/CODE] and this will give you a compiler error; [CODE] int d; … |
| | Not so long ago firstPerson started what was a series of competition questions for the users. It was fun so I was thinking of doing another. I've always kind of been interested in A.I so I thought that would be a good place to start.This is probably a more advanced …  |
| | compiler : g++ of gcc4.5.2(minGW) os : windows xp sp3(32bits) [code] template<typename T, template<typename> class CONT = AccumulationTraits > class Accum { public : static typename CONT<T>::AccT accum(T const *beg, T const *end) { typename CONT<T>::AccT total = CONT<T>::zero(); while(beg != end) { total += *beg; ++beg; } return total; … |
| | I have to write a program to check for balanced HTML tags here is what i have so far. My problem is it is not working right. My stack implementation is fine, i believe my problem is when i am looping through the string ( lines58-70 I marked with comments …  |
| | Hi! I read the clearing input buffer article on the top of the c++ forum but I don't really get it, and it doesn't work. This is my problem, I know that cin is just like a file in that it has a buffer (correct me if I'm wrong, I … |
| | Ok, I have asked this b4, and I don't think I have gotten a straight forward answer, I really need this answered, because what I am doing is "legal", but i am 100% it does not make logical sense. This it the original C# code [CODE] var version = reader.ReadUInt32(); … |
| | Dear all , I need your help on this. I will say how I am thinking the solution and any help will be much aprreciated. I will denote the husbands with the following notations h1 = 11, h2=12, h3=13 and their respective wives with the numbers w1 = 21, w2 … |
 | Hi all. There have been several threads where people are asking, [B]"is there any way we can develop iPhone Apps on Windows, or without using Objective-C?" [/B]The main reason people ask this is because [I]they either cannot afford a Mac, or cannot afford all the additional costs one has to … |
 | [B]Specifications (minimum):[/B] The CDROM class contains the following, private, data members: string Name; // The Name of the CDROM string CDType; // The Type of CDROM float Cost; // The Cost of the CDROM [I]The ONLY recognized (i.e., legal) CDROM types are, “Game”, “Word”, “Compiler”, “Spreadsheet”, “Dbase”, and “Presentation” (AND, … |
| | I was given a header file and the main files i have to create the implementation file for the header file I am issues trying to find out where I went wrong in my for loops. Can you point me in the right direction The header file [CODE]// FILE: sequence1.h … |
| | Hey there, I'm having trouble creating a multiplication function for the program as I have two classes to keep in mind (Monomial and Polynomial). And if possible, a little advice on how to make my for statements in the arithmetic operators more flexible to user input such as i<PolynomialSize, which … |
| | Hey there, I'm having trouble figuring out the next step of my program. What I'm trying to do is make a function that will add two polynomials, and I don't know how to exactly fix it. My first question would be if the Polynomial operator+ function is right, or whether … |
| | I think that I misunderstood something about class definitions in c++... Why it is legal to define class in multiple files, like this: file Test.cpp: [CODE]#include <iostream> using namespace std; void testFunc(); class A { public: void printText(); } clA; void A::printText() { cout << "file: Test.cpp, class: A, method: … |
| | How can I get the respondent to terminate my survey before all respondents have entered? That respondent may enter a specific number of out of range responses in a row. Below is my code: [CODE] #include <iostream> #include <cctype> using namespace std; const int STUDENTS = 10; // students entering … |
 | Hey Everyone I am having troubles. i tried looking up how to make the main for invisable but i cant figure out how. i saw some examples but they made no scence to me. What i am trying to do is change from one form to another and hide the …  |
| | I wrote the tic tac toe with minimax algorithm. However, there are some bugs that i cannot figure out why the computer cannot win the human. Please help me to fix it. Thanks. I upload a zip of all files for you to check it easier. I guarantee that it … |
| | Well, I'm a college student with a dread C++ online class and now my (insert explicative) professor wants us to write a program for a diamond. The actual assignment is... Write a program that displays a diamond of given the odd length (an odd integer size less than or equal … |
 | I'm having a bit of trouble with dynamic_casting. I need to determine at runtime the type of an object. Here is a demo: [code] #include <iostream> #include <string> class PersonClass { public: std::string Name; virtual void test(){}; //it is annoying that this has to be here... }; class LawyerClass : … |
| | I have interesting question. Why this code is legal in C, but not legal in C++ ? (tested with GCC 4.2 compilers) [CODE=C] void Function() {} int main () { Function(1); return 0; } [/CODE] We can simulate same C++ compiler error in C compiler by changing function definition to … |
| | Is there a safe and legal way to go from a pointer to a member of an object to a pointer to that same object? |
| | [CODE]class building { public: int length, width, height; string purpose; string name; private: float volume; int num_windows; }; building office; void main () { // The following statements are legal: office.name = "Bleedem, Woffle & Scarper (Lawyers)"; office.height = 34; cout <<"height is"<< office.height <<endl; cout << " name is … |
| | I've look in the C++ standard and, when listing list of compound stuff, it does not mention anything like "pointer to [B]data [/B]member of an instantiated class". So the question is: [CODE]struct test{ int a; double d; ..... //more complicated stuff here to make it a NON-pod structure) .... }; … |
| | Hello all, Firstly let me say yes, i have searched the forums, secondly No! i am not asking for you to do my homework, i realize how much you all hate that =P I am here for some guidance, i have exhausted my researching capabilities and am at the point … |
| | This is just out of curiosity! Does anyone know what is the maximum number of characters that a line of code can have? EDIT: Added more details. Is it possibly possible to make two lines become one? .... This seems pretty odd, I dont know how to explain it, but … |
| | anyone can do case statment for stack , queue and linked in one program plz ex: void main () do { cout << "1 - stack"; cout << "2 -queue"; cout << "3 - linked list "; cout << "4 - stack with linked list"; cout << "5 -queue ....... … |
| | Hello, I am try to compile this code using gcc in ubuntu. I get the error 'btree.cc:(.text+0x55a): undefined reference to `std::cout' '. I thought if i added using namespace std; it would start working but i am still getting the same error. Any suggestion on how i can fix it. … |
| | Hello-- I've been writing some code in C++ to test the [I]tffs-lib[/I] library, which is written in C. The library provides functions for directly accessing a FAT file system from within a program. Although most modern operating systems have drivers for accessing the FAT filesystem on SD cards, I am … |
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