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General C++ Programming - July 2015 (Page 5)

What is the significance of the underscore _ ?

#include <string> #include <vector> class AddressBook { public: // using a template allows us to ignore the differences between functors, func...

[10 replies] Last: @ shadowmouse Nothing particularly concrete, just years of looking at... (by Duthomhas)

by hiei2071

Tracking what code modifies a variable in visual studios?

So I have a pretty big program with a lot of stuff going on and need to find out what code is modifying the value of a certain variable. Is there anyway I could...

[3 replies] Last: Just what I was looking for! Thanks. (by hiei2071)

by Krogoth

Inline template methods

I have class A that inherits template T. Template T has few inline methods. How to put all things together? Currently, I put A in A.HPP that includes T.HPP. In...

[3 replies] Last: --- removed --- (by Krogoth)

by JoshuaCrotts

How to resize an array? (1,2)

Hello, I'm trying to code this little thing, don't ask about what it is or efficiency, I'm just trying to work a little with C++, and what I'm trying to do is g...

[23 replies] Last: By the way, I'm not sure who reported your post or why. My guess wo... (by MikeyBoy)

by awkitup

Receiving various errors, need help!

#include <iostream> #include <stdio.h> #include <string.h> using namespace std; const int MAX_CHAR = 100; class Student { public: Student::Stu...

[6 replies] Last: Error 1 error C2065: 'initID' : undeclared identifier C++ is case-sen... (by fcantoro)

by Won

Binary output

Hi! I have some hex values from a hex editor, for example: d5 57 4f ad 30 33 0b 4e 49 a7 05 18 c4 90 66 d8 45 ac 39 3e 7d f1 a8 02 80 14 20 90 6e 20 12...

[no replies]

by Krogoth

Child virtual method isn't called !

COMPONENT.HPP: #ifndef KENG_OBJ_TYPES_COMPONENT_HPP_INCLUDED #define KENG_OBJ_TYPES_COMPONENT_HPP_INCLUDED #include <list> #include "../main/obj_type_id.hh" ...

[6 replies] Last: keskiverto, if you check like that, ofc. I didn't know how to do that ... (by Krogoth)

by Pratik K

Compiler/Programmer Error?

I am currently making a program related to the Goldbach Conjecture, and needed some help in a particular section, the program calls this function quite often an...

[3 replies] Last: UPDATE - Problem solved! The logic just needed to be thought through... (by Pratik K)

by cppnoob25

Strings

What am I missing here to correctly modifiy string a? #include <iostream> #include <string> using namespace std; void change(string a) { string b; ...

[3 replies] Last: What the other guy did would require a pointer and you can do this. Yo... (by Aim4Erudite)

by itsstino

Need Help With Something I Am Working On

Okay so I play this game and there are pay sites that sell hacks and make a killing off of it, but I unearthed a hack that no pay site offers, and I have only s...

[1 reply] : Anybody have any advice or tips or anything? (by itsstino)

by olette

Popping?

So this is my code- #include <iostream> #include <string> #include <iomanip> #include <fstream> #include <cstdlib> #include <vector> using namespace std...

[1 reply] : What should the function 'input' do? In other words, how does it use t... (by keskiverto)

by Ceset

Static vs Dynamic Polymorphism

I just learned static polymorphism and was spending my time learning what it is about for last few days. We create dynamic polymorphism this way class Animal ...

[14 replies] Last: Yes it is done and i appreciate every help (by Ceset)

by Aim4Erudite

Error zero size array, working with classes.

Keep getting an error saying I have zero sized array but I have a constructor creating an array of 50. Also getting an error that says: deletion of an array exp...

[3 replies] Last: Glad to help! (by Ganado)

by olette

Not sure about the errror

#include <iostream> #include <string> using namespace std; class Car { friend bool operator==(const Car &carA, const Car &carB); public: Car(); C...

[3 replies] Last: You don't have implementations for any of your Car class function defi... (by Ganado)

by kfann285

Initializing error

Just learned vectors and tried to initialize one but got back error C2440: 'initializing' : cannot convert from 'initializer-list' to 'Vector<std::string>' I...

[7 replies] Last: Did you remember to #include <vector> ? (by LB)

by Gamer2015

C memory management

Hey my dear friends, First of all, this is a C-question, not C++ related. In my school-project last year we had to develop an application for a µC in C. I th...

[4 replies] Last: How can I force that memory_ and place_ are never touched by anyone e... (by NoXzema)

by Ceset

Static Gets Initialized!

I was testing out something with statics. My former experience says statics shouldnt be get initialized inside constructor. Thats why Static Constructor conce...

[6 replies] Last: It was a good question. Everybody gets stupid stuff wrong. (by Duthomhas)

by Krogoth

Init parent's member that cannot be passed to constructor

I have many classes inheriting each other, like A, B::A, C::B. All of them must have an index that is never modified after object creation, and cannot be given ...

[15 replies] Last: I suggest making an enum. Boost has some pretty cool enum stuff to pl... (by kevinkjt2000)

by JORGEMAL

Deleting pointer objects

I have a struct like the one below and I create pointer objects base on it, for example, "Node* prvNode = previous;". The creation of these objects are made in ...

[4 replies] Last: If you use "new" to create the node, you must use "delete" to delete t... (by doug4)

by whitebeard

Diffcult with vectors and for cycles

I wrote the following bool function: bool user::Execute(SampleFormat& sample, const EventFormat& event) { if (event.rec()!=0) { Float_t a1, a2, a3, a4...

[4 replies] Last: Yes, I meant abs(norm(sum1) - certain_value) < abs(norm(sum2) - certa... (by whitebeard)

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