General C++ Programming - C++ Forum - February 2017 (Page 9)

by anttton

why does I get nullptr when I try access object variable

Hello! When I try to access a bool variable from a object in another class I get nullptr when I s...

[9 replies] Last: Oh, sorry, I got a bit confused. In the original code expbar got a var... (by Peter87)

by MDLC1997

Ribbon Pattern??

So I was given a problem (helping a friend), and its says there to generate the ribbon depending on ...

[3 replies] Last: @MDLC1997: do you mean like this: For 5: * * ** ** ***** ** ** * ... (by lastchance)

by DragonOsman

PPP2 Chapter 10 Exercise 3 Help Needed

I'm having trouble trying to sort a vector of a certain user-defined type that I have (type Reading)...

[18 replies] Last: I'm not sure when to #include iomanip, though, so that could be a pro... (by jlb)

by curiousengineer

Deallocating memory in chunks rather than whole

In my program I will be reading in data from an external device. This data will need to be parsed....

[3 replies] Last: As far as I am aware, if I allocate a chunk of memory and then set po... (by TheIdeasMan)

by heybronson

Can't display Dynamic 2D array

Hello, I'm unable to print my 2D array. When entering the for loop in display(), my program seems to...

[3 replies] Last: This is a cleaner view: In Graph.h: private: // TODO: Complete t... (by heybronson)

by Rikasi

Input/Output devices

can someone explain or direct me to how input can be entered from an input device like a scanner int...

[1 reply] : You need to interface to some library functions to get from the scanne... (by jonnin)

by elsa

How to insert cout message into return statement

istream& ComplexNum::input(istream& in) { cout << "Enter real: "; return in >> real >> imaginary...

[2 replies] Last: Thank you helios. I was doing: cout << "Enter real: "; return in >>... (by elsa)

by elsa

Overloaded preincrement operator not working

I have overloaded postincrement (a++) operator in my code and I am attempting to overload the preinc...

[4 replies] Last: That is what I feared. I had the whole concept of post/pre increment w... (by elsa)

by kmiklas

C++ API Documentation Framework?

Heya Peeps, I'm building an API, and need to document it. Any recommendations? I'm looking for...

[no replies]

by Bazist

Fastest associative array on C++ (Trie)

Hi Guyz, I have developed one of the fastest associative arrays in the world, based on Trie structur...

[12 replies] Last: Guyz, I am still searching good associative containers for comparing, ... (by Bazist)

by kikiyox77

Need help on calling objects and parameter objects

So for say I have a function called commonType. In my main.cpp file there is a call and it looks lik...

[2 replies] Last: Ah, I see. Thank you. It works perfectly now (by kikiyox77)

by Hengry

Copy Constructor, Copy Assignment, Move Constructor and Move assignment

I'm having trouble trying to implement these special members. I am reading from: http://www.cpluspl...

[11 replies] Last: Following: https://msdn.microsoft.com/en-us/library/dd293665.aspx I h... (by cire)

by Troaat

Using a constant (from within the function) in a switch statement

Hi everyone, So here's a problem I've encountered: I want to create an object. That object is goin...

[2 replies] Last: Thanks, I didn't know that. (by Troaat)

by miyahee

Help with making output skip a line

#include <iostream> #include <cmath> #include <iomanip> using namespace std; int main() { doubl...

[2 replies] Last: Ah, I see I just always assumed that when a newline character was used... (by miyahee)

by omarespanol

Extract Resources from EXE file

I am making one program that it will have one executable since resources and it will extract on my d...

[3 replies] Last: Error 1814 means The specified resource name cannot be found in the i... (by Thomas1965)

by kgeri1998

C++ Characters from txt

Hi guys! Can somebody tell me how can i do this? I have a txt file, with some sentece. All of the ...

[4 replies] Last: If you really just want to get one character at a time... http://www.c... (by newbieg)

by theothermii

Probability analysis and implementation

Hey there, I realize this is mostly a math and statistics problem, and if this is a bad place to see...

[3 replies] Last: I know, in theory, how to calculate the probability of 1 win occurrin... (by lastchance)

by ahmad001

best framework for unit Test + mocking in C++?

hi friends I am beginner in Unit test and mocking, and need your's help. What is best framewor...

[4 replies] Last: You're welcome. I should have included some links: https://github.co... (by MikeyBoy)

by The Snowman

Help me understand this logic

I always have trouble with logic, even when it's simple. Here is a function designed to search an ar...

[1 reply] : My problem in understanding is with the bool variable and the logical... (by cire)

by Rajkumar MCA

Singleton class

Can anyone explain about singleton class and when and where it should be used. Advantages and disadv...

[1 reply] : http://letmegooglethat.com/?q=c%2B%2B+Singleton+class+pros+cons (by Yanson)

General C++ Programming - February 2017 (Page 9)

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