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General C++ Programming - September 2017 (Page 6)

Which way is better? inheritance or member?

Which way is better? So, for example, let's say we have a game engine class through which you can add objects. But object manager class does that. So should I p...

[4 replies] Last: Thanks!!!! (by Putarda)

by abcdef123

How to exit the program and and continue

include<iostream> using namespace std; int main() { float weight, height, bmi; cout<<"Enter weight in kg and height in metres"; cin>>weight>>height; bmi = we...

[3 replies] Last: Thanks. Understood how to do it.I will take care of that gaps. Actuall... (by abcdef123)

by closed account jLA4LyTq

No clue how to start?

So i just transferred into a computer science and im like two weeks behind. I have no clue how to even start this project, please help! Problem Statement: You...

[5 replies] Last: jonnin, I stand corrected. (by Enoizat)

by L1nkMzQ

Question

Hi guys , i have a question . Example : i declared 2 int variables . It is possible to find which is maximum and which is minimum without using cicles ( if , fo...

[2 replies] Last: http://www.geeksforgeeks.org/compute-the-minimum-or-maximum-max-of-two... (by Thomas1965)

by goldenchicken

SDL Snake Clone has troubles rendering the snake

Hi everyone! I rencently discovered the SDL library, and when I tought I was ready for it, I started making a Snake Clone. For now, I just control the snake us...

[2 replies] Last: That makes sense, thanks alot (by goldenchicken)

by olfibits

Create a file list (platform-independent way?)

Hi guys, although this questions has been asked many times, I haven't found a working solution for me yet. I want to create a function that returns a std::v...

[3 replies] Last: @Duthomhas Thank you very much for your solution with the recursion. B... (by olfibits)

by G0rdano

Is this a legit optimization?

In the out() function below, which sums elements, you can see I have a switch case to do the summation in a single line, and in the default case (for any more ...

[3 replies] Last: JLBorges: That's extremely helpful! It looks like you got the assembl... (by G0rdano)

by badboy1245

geting question marks for quotation marks

I'm reading from a file that has quotation marks and when it reads the quotation marks, i get question marks printed out. what do i need to do to fit it? st...

[4 replies] Last: ... (by Duthomhas)

by IgazHarcos

How to use a language to program instances of class?

Hello! I begin to make a game creator for myself. I want to use c++ for the engine (work in progress), and made the gui in C# or Java (WIP too...). But what ...

[2 replies] Last: A class factory has nothing to do with code interpretation or run-time... (by helios)

by L1nkMzQ

Problem

Hi guys . How do i measure the length of an array ? Better to say : how do i pass every element from array? i found with begin() , end(), etc but doesnt work. ...

[5 replies] Last: what I have always pondered about this question is not how to do it b... (by jonnin)

by JLBorges

Two phase name lookup (most of it) in the Microsoft compiler

https://blogs.msdn.microsoft.com/vcblog/2017/09/11/two-phase-name-lookup-support-comes-to-msvc/ 1. Update to the current version 2. Compile with -permissive-...

[2 replies] Last: Whoa, I had no idea MSVC used Yacc. That's pretty crazy for C++. I won... (by helios)

by technologist

how to format/truncate

Hi, Want to format and truncate/round my number at the same time in the program: Here I want the + sign shown: float n = 3.8; printf("%+f", n); =+3.800000...

[3 replies] Last: Worked great, thanx (by technologist)

by biomod

Undefined symbol error

Hi, I've recently taken over a project and therefore I am not completely familiar with it - however, I've encountered an undefined symbol error on the line: D...

[8 replies] Last: C++ Builder 6 Yes that is a bit dated indeed. If you're working on... (by Chervil)

by lukardos

Trouble while trying to find a specific word

hey. im trying to find a word in a txt file and if it is found count 11 lines after it, then save the word in a var and the destination in a var. cant eve...

[4 replies] Last: thank u guys, and yeah i can open files on c++ but i didnt know how to... (by lukardos)

by SSteven

precise definition of "precision"

What exactly is the precise definition of "precision" of a numeric field? As far as I know, it should be the "number of digits after the decimal point". ...

[7 replies] Last: > Here, a precision of 2 prints 3 decimal digits rather than 2, which ... (by JLBorges)

by SapphireSpire

Can I change the way functions work?

When you pass a variable to a function in a function call, the function makes a copy of the variable so that any changes made to the value of the variable only ...

[3 replies] Last: For fuck's sake. (by helios)

by paraxod

How to connect objects in order to transport data between them?

Suppose I have a class Object which can send or receive some data: class Object { protected: int data; public: void SendData(); void Receiv...

[2 replies] Last: The way you've stated it, the problem you're trying to solve has a ver... (by helios)

by abc1

virtual functions

hi, I am very new to virtual functions of c++. what is virtual function?why it is used? please help me in learning this concept.

[13 replies] Last: > Why it is not method overiding? If we are talking about C++, we use... (by JLBorges)

by DragonOsman

"no matching function calling for getline" error (1,2)

I got this Build message: 1>------ Build started: Project: chapter17ex7, Configuration: Debug Win32 ------ 1>chapter17ex7.cpp 1>chapter17ex7.cpp(18,36): e...

[38 replies] Last: Yeah, thanks. Done. (by DragonOsman)

by haddaauk

Comparing two char within the same array

Hey guys, I am trying to make a comparison within an array that when you enter a character that is already in the array, it gives you "element is a duplicate". ...

[7 replies] Last: thank you guys, helped me heaps !! (by haddaauk)

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