Beginners - C++ Forum - April 2010 (Page 25)

i had a global variable but not above int main(), but above a class,something like this //global variable int* map; int MAX_WIDTH; class map{ //definito...

[2 replies] Last: I also want to insert it to my class, but something i forgot to tell y... (by anis135)

by xxlt3xx

approximating Pi

I'm having trouble I cant get it to output the correct value for pi and its driving me crazy what am I doing wrong? The program is giving me the the final va...

[4 replies] Last: I couldn't get the it to output the correct values so I reworked my eq... (by xxlt3xx)

by sea courage

calculator using prefix & postfix

I need your help to programe a calculator that can sovle mathe problems with prefix & postfix. help me as soon as possible

[1 reply] : http://www.cplusplus.com/articles/how_to_ask/ (by Bazzy)

by Aseel

While loop

Hi Programmers, I'm writing a program to read text file and display it on the screen but it just works for the first time and if I tried again it doesn't di...

[3 replies] Last: http://www.cplusplus.com/doc/tutorial/files/ 1. once you hit the end ... (by DrakeMagi)

by andy371

displaying time variable if time is between x time and y time

Hey sorry if the name is stupid, but I'm really not too sure what it is I am trying to do, I'll try make it easy to help. I basically have something like this ...

[no replies]

by Stiltzkin

references/pointers

Hey, For an assignment I have to use this method : std::string& RowIterator::next(int& columnNr){ current=current->next; columnNr=current->columnNr; ...

[2 replies] Last: Since I have to respect the signature of the method, I have to return ... (by Stiltzkin)

by ehsangha

CLASS AND VECTOR

Hi . I Need some Information about how too assigne a class to a vector class A { protected: string name; }; class B : public A { ...

[3 replies] Last: Additionally, be sure to delete any memory allocated with operator new... (by moorecm)

by bnd

Polymorphism & Assignment Operator Overloading

So I'm totally confused about how to go about this. I have something like: class parent { public: virtual parent& operator=(const parent&)=0; }...

[7 replies] Last: You can always do something like this: #include <iostream> using ... (by m4ster r0shi)

by jagy96

Array of Classes, Inheritance constructor number funky

I am making a program based on a marine eco system. After entering the numbers Plants = 1000, Goldfish = 400, and Redfish = 2; My constructors are not being cal...

[2 replies] Last: Organism *R, *G, *P; P = new Plant ; G = new Goldfish ... (by Disch)

by pika

How do I save a text file where the name of the file is defined by the user?

simple question, but... Here's the function: void save_file(string fileName) //saves the file to file fileName.txt { fstream myfile(fileName); if...

[13 replies] Last: Thanks! Works great now! (by pika)

by Loloda

What C++ software to buy?

Hi everybody, I want to order the following book "C++ Programming: From Problem Analysis to Program Design (Author D.S.Malik)" from Amazon.com to learn C++ pr...

[7 replies] Last: Microsoft Visual C++ Express / Code::Blocks with Mingw Compiler both ... (by blackcoder41)

by SoloXX

Wrong output in "finding smallest number"

Hello, I am in a beginning C++ class and there is an issue I've been having with one particular switch statement (case B, in my case). When I put in an unkno...

[4 replies] Last: Really? Indentation has that much impact on correct execution? Wow! I... (by firedraco)

by bombatwist

error: no matching function for call to ''

Hello, i am new to this forum and trying to create a merge sort function. Upon testing, i get this error. " error: no matching function for call to 'merg...

[8 replies] Last: ahh no it wasn't. that fixed my problem. thanks guys! (by bombatwist)

by Okaya

Error related to scope of variables

Hello everyone. I am new to this forum. I have recently tried to break up one of my programs into several smaller files in order to make it more easily read...

[3 replies] Last: jsmith, Disch, thank you very much, I appreciate your feedback on my q... (by Okaya)

by DeadH34d

Program Evaluation

Good Afternoon everybody. I just made a Chore List program, and I would like to know if anything I did was bad practice or cluttered, etc. Basically, I'm lookin...

[4 replies] Last: Ohhh, ok. That makes perfect sense. thank you. Trust me, all the help ... (by DeadH34d)

by conqrr

hi..new here

hi want some advice here. i have learnt console programming in c++ we have finished array,structures, pointers,classes,inheritance and other stuff. now i w...

[5 replies] Last: i have tried QT, wxWidgets and MFC (tried only not fully learned) and... (by helios)

by John Linux

Basic Tree Structure Issue

I have programmed in Java for quite a while, yet I'm new to C++ and the concept of structures as opposed to classes. Below is this code: #include <iostream> ...

[7 replies] Last: classes are safer because they start out as private only reasons s... (by Disch)

by ehsangha

function

Hi . how can I declaration a function into separate file ??? foe example just call name of function in main program

[2 replies] Last: thankssssss (by ehsangha)

by majidkamali1370

struct in class

Hello. Can a class contains a struct? thanks :)

[3 replies] Last: Yes. (by snailshen)

by jesusLord

UML diagrams question (1,2)

Hey, I'm new to uml diagrams. can any one help me? A church market has different branches. Cashiers of each branch should be able to input all sales in thei...

[23 replies] Last: My friend...first, send us some try about the exersice, how do you thi... (by alud)

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Beginners - April 2010 (Page 25)