General C++ Programming - C++ Forum - November 2013 (Page 37)

How i can deposit vectors with different objects?

Hello. I my code i have a base struct ... Then others structs made ... struct base{}; struct a1 : base { int a; int b; }; vector<a1>v1; st...

[14 replies] Last: Also in code of SneakySnake some questions. How i can externaly swap 2... (by dkaip)

by blackmagic24

Help With Program

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[4 replies] Last: alright. Thank you so much (by blackmagic24)

by j2013

why the answer is zero

Hi, anyone know how come the answer is zero #include <iostream> using namespace std; class Shape { public: int findArea() { return 0; } }; class Squa...

[4 replies] Last: http://www.cplusplus.com/doc/tutorial/polymorphism/ LEARN!!! (by sherre02)

by bwit092

Changing const int value?

#include <iostream> #include <iomanip> using namespace std; // cin.get() <-------------- used to let the user read the screen // Function prototypes v...

[1 reply] : If you want to change it, it can't be a constant. (by sherre02)

by tasos42

C++ exception stack tracer (debugger)

Hello I want to inform you about a new debugging tool to sample. I give you its sourceforge short description: This library, linked with C++ code, using G...

[1 reply] : Hello again I want to inform you about the new release of libcsdbg, h... (by tasos42)

by ssalunke

Virtual mouse help needed

Hi, I am trying to build hand gesture based application to control mouse. I have succeeded in moving mouse with finger co-ordinates. But when I try clicking ...

[no replies]

by Duckdung

Error Returning an Array

On the return line I get: error: invalid conversion from 'char (*) ' to 'char' I've read about similar errors that had to do with pointers, but I don't underst...

[5 replies] Last: Yes. (by LB)

by Bdanielz

Class: member function print() not printing data..

.h file #ifndef __lab4b__taskList__ #define __lab4b__taskList__ #define MAX_CHAR 100 #include <iostream> using namespace std; // Define a structure to use ...

[3 replies] Last: Thank you!! (by Bdanielz)

by chasecb

Data Cleaning

Greetings all hope you are staying low on the glycemic index....I'm trying to do some data cleaning and need a bit of advice. I have a .txt file that I need to ...

[4 replies] Last: thanks so much (by chasecb)

by ShotoReapre

Access 'X' member in typedef std::vector<sf::Vector2i> FramesCoords

Hi. How can I access to 'x' member from sf::Vector2i in my typedef? I try this, but doesn´t work: typedef std::vector<sf::Vector2i> FramesCoords; FramesCoord...

[6 replies] Last: @OP: for some reason you've got a pointer to a vector. In order to use... (by ne555)

by fernando

ltrim and rtrim as standard methods in string class

Hi everybody From time to time I see others, and myself, writing, again, a way to get rid of leading and trailing blanks in a string. When I moved to C++ from ...

[13 replies] Last: > And I thought C++ programmers care about performance, cough cough...... (by JLBorges)

by tomkulaga

unique_ptr and template

Quick question: #include <iostream> #include <vector> #include <memory> struct Base { virtual void f() { std::cout << "Base\n"; } virtual ~Base...

[10 replies] Last: A dynamic cast on a pointer results in a new pointer being created; fo... (by JLBorges)

by fercasti

digital clock

Getting a compilation error; It says ''reloj'' is undeclared (first use this function). expected ; before ''reloj'' thanks #include<iostream> #incl...

[5 replies] Last: What are those square brackets doing after time rolej ? (by Mats)

by sydfrederick

String does not name a type?

Well this is an awkward error during compilation... I'll just let you look at the code, says the error occurs at line 14. #ifndef SIMPLE_LOAN_H #define S...

[1 reply] : Can you please post the exact error message. (by kbw)

by aj3423

permutation for two different list

Hi, I got a permutation question, I got two different std::list: list<string> slist; slist.push_back("str111"); slist.push_back("str222"); slist.push_back("st...

[5 replies] Last: Well, since I've already been driven insane making this, I may as well... (by helios)

by pilotmm

Circular Template Arguments

Today I faced a problem where I had circular dependency in my template arguments. I was trying to make a class hierarchy similar to: template<class BType>...

[6 replies] Last: Yeah I agree..... I didn't see it at first.... My head was stuck in a ... (by pilotmm)

by John English

Can't use System commands

So, as far as I can tell, this code should run a system command from the C++ program: system("ping 192.168.1.2 /t /l 32768"); However, I just keep getting a...

[1 reply] : system() is a function of the cstdlib (C++) / stdlib.h (C) so y... (by condor)

by bugsy

Primary expression error

Hello everyone i need assistance. Im getting a primary expression error on the 11th line, and i dont know how to fix it. Please help me include <iostream> #...

[3 replies] Last: You have to give arguments for the function. Just restating what the t... (by Jakssoul)

by wkust

Accepting Specific strings

I am quite new to programming in Cpp and I cannot figure out how to get the program to deny "B" as a value for cat. I want it to only accept "Ba". Is there way...

[1 reply] : For one, your line 7 should be cin >> cat; But when I compile the pr... (by Jakssoul)

by Cronnoc

SFML 2.0 Opengl problem

i was trying to combine opengl with sfml and the code worked but it can't draw anything to it. my assumption is that i need to pop and push opengl states but i ...

[3 replies] Last: I used this as a reference, it has a triangle in it: https://github.co... (by LB)

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General C++ Programming - November 2013 (Page 37)