Beginners - C++ Forum - January 2009 (Page 12)

error: no match for call to ‘(Pair<std::valarray<int>, std::valarray<int> >)

Hello, I am solving the first exercise in fourteenth chapter from the C++ primer plus book and I get an g++(v 4.3.2/OpenSUSE 11.1) error annoucement "43: er...

[4 replies] Last: Thank you very much, it works now. (by talx)

by dhanny

Function returning a linked list

Hi, mates. I wrote the function and it runs properly, but i don't know how to make it return a List object correctly. It should be like: List list = Func...

[15 replies] Last: sorry and thank you, helios! (by dhanny)

by geeare1

How do I pass vectors in a class template?

Hello, I'm trying to write a Matrix class using two dimensional vectors. Everything works fine until I try to create a class template. The idea is that the ...

[2 replies] Last: Thanks very much Helios, that was it! gr (by geeare1)

by EricM260

Time Class

So i made my own time class. Stupidly i named it time.h n time.cpp to incorporate the library <ctime> do i have to change the name of my class and all the data...

[2 replies] Last: ...or put your class in a namespace. (by closed account z05DSL3A)

by djorhe

Linker Error in Dev-C++

Hi, I just joined the community! I have been implementing a Binary Search Tree Class. There are two classes, one is BSTNode which only has data,*left & right. ...

[7 replies] Last: Yes, it was indeed about the implementation of the constructor.. Than... (by djorhe)

by DarkFire21

RunTime error in dev

Hello, I work a project on dev-c++ and I have the following problem. The data is taken from a file with a specific, xml-like, representation.When I enter a fi...

[6 replies] Last: I dont know.I use string and fstream and iostream libs. (by DarkFire21)

by hei

hello world error?

Hi, I'm a noob.I paste this code: #include <iostream> using namespace std; int main () { cout << "Hello World!"; return 0; } to see what wil...

[17 replies] Last: On the home page of that tutorial site you can download the source cod... (by Malachi)

by Bishopssix

C++ Strings

I have four choices i want the choices to be north south east and west I'm putting in string north; string south; string east; string west; when i put in cin >>...

[6 replies] Last: A text-based adventure game gets its data from two sources: the game s... (by helios)

by Nermin

Need To Multiply An Object From A Different Class With Object In Same c++

#include <iostream> #include <cstring> #include <cmath> using namespace std; #define PI 3.14159 class values{ public: double sideA; //a= ...

[4 replies] Last: we've found a different solution... wrote diff classes and insertet th... (by Nermin)

by dawiz

Output a number of items per line

Assuming I have a simple output from 1 - 20. How can I output five numbers per line? I'm thinking this is suppose to be easy but I'm definitely having problem...

[4 replies] Last: Thanks guys...appreciate it very much (by dawiz)

by Claymz

Bubble sort

im getting one error: bubble_sort.cpp(46) : error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'void' (or there is no acce...

[15 replies] Last: for a hint It would look like this in pseudocode void BubbleSort... (by Dacster13)

by nethan2105

Formula for obtaining GCF

Recently I had this nack to make a program that does fraction operations like adding, subtracting, etc. But I can't seem to figure out how to reduce a fraction ...

[2 replies] Last: Google "GCD" and look at the Wikipedia page. It contains a very simpl... (by jsmith)

by quant

import\export values from\info function

Hi all, I've a tiny problem with there.. #include <stdio.h> #include <stdlib.h> void testfunc (int x,int len) { len=10000; printf("%d\n", x)...

[3 replies] Last: If you want to change the value of len , use references: void testf... (by Bazzy)

by guykun

Drawing a Bitmap

Hi, I'm pretty much new to C++ but i have a general understanding of the basics At the moment, I'm just trying to find out how to actually draw a bitmap to a...

[3 replies] Last: Well In my opinion it seems like the paintlib library is pretty good f... (by Dacster13)

by nayeret43

Difficulty with comprehension....

I have this assignment to do, and it is very difficult for me to understand the actual question, and even more so what to do. Here is the program mission (tr...

[3 replies] Last: run-time means you get the data from the user while the program is run... (by Dacster13)

by Daemo

How can I open string-named files?

#include <iostream> #include <string> #include <fstream> using namespace std; int main() { string I; cout << "Decide the file name: "; cin >> I; i...

[3 replies] Last: you only need to type input because (I+".txt") ads .txt to ... (by zoldri)

by TimeWaster

Where to start...

Well, I really need some help. I have Microsoft Visual Studio (Basic,C++,InterDev,FoxPro) Enterprise edition, and I can't seem to find anything to help me out ...

[2 replies] Last: Visual Basic is probably the easiest to start with if you're planning ... (by Dacster13)

by Bakuno

Wigets and GUIs

Hello all, I am fairly new to C++, and am really keen to learn programming :P My problem is I really want to put my "Hello World" application into a window,...

[7 replies] Last: Read the Petzold. (by george135)

by LovestoCpp

Small mistake somewhere

This doesnt execute properly. It executes the exp gain no matter if you got it wrong or right. if (answer1==1){ exp=500+1000; ...

[6 replies] Last: Ok. But you can't do as he did. You put two variables, put the incre... (by hannad)

by nayeret43

Warning assistance.....

Here is the program I wrote: #include <iostream> using namespace std; void old_string(char ); int run_check(char ); int change_string(char )...

[6 replies] Last: The first 2 warnings: the return value of strlen() is unsigned and ... (by mordekai)

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Beginners - January 2009 (Page 12)