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General C++ Programming - December 2019 (Page 8)

C puts(char * ..) in c++ of string type arg

How do we convert C puts(char *...) into C++ function of string type arg?

[1 reply] : cout << the_string; (by Repeater)

What is the best time of sorting algorithms?

What kind of time, meaning, which time should I prefer to keep track of time for each algorithm? (Like seconds, milliseconds, nanoseconds, or something that I c...

[3 replies] Last: Ok, thanks for that. So you mean, any units of time that would be more... (by jonnin)

by volang

Socket receive buffer

The clients my server serve always sends a initial request with ONLY the headers/info before the real content. Can this initial request come in "chunks" ev...

[1 reply] : What do you mean by "headers/info"? (by kbw)

by volang

Store pointer in a string

Hello. I need to store a "char *" in a string, and then use that string to access the same pointer. How can this be done?

[9 replies] Last: string v = to_string((int) &b ); int z = stoi(v); char * x = (char*) ... (by jonnin)

by duhfiant

Cant figure out a recursive function.

Recently took intro c++ class and learning recursion but im not sure how to approach this question. Any help would be appreciated. Question: Implement a re...

[5 replies] Last: I think i got it. Thank you so much. int firstTwo(int n){ if(n < 10... (by duhfiant)

by luguecos

Implementing modular Runge-kutta 4th order method for a n-dimension system

Hello, i'm trying to make my runge-kutta 4th order code modular. I don't want to have to write and declare the code everytime I use it, but declare it in a .hp...

[1 reply] : Wrap things up in a class. #include <iostream> #include <cmath> usin... (by salem c)

by somang317

I tried to make a linked list, but it doesn't work. Help me plz!

I want to declare string as protected in the header file, but I keep getting an error. I want to declare a virtual function, but I get an error. How can I...

[2 replies] Last: Thanks nuderobmonkey! Thanks to that, I realized that using namespace ... (by somang317)

by marhuum

How to call function in the way require it as inline

How to call function in the way require it as inline function only on this particular call, and the function may not have inline identifier in declaration

[2 replies] Last: write the function body (no header) in its own cpp file. the variable... (by jonnin)

by iamjaved

Is there an easy way to draw a triangular grid in C++?

I want to draw a grid of equilateral triangle using C++. Output suppose to be consist of multiple triangles. Not like this type: 1 1 2 1 2 3 How do I p...

[3 replies] Last: @againtry, Yes it'll be lined. (by iamjaved)

by volang

Functions when multithreading

I have a function and inside this function, I store some variables. Let's say the first thread runs the function, some values get stored in to "the function ...

[2 replies] Last: Hey man. Thanks for your reply. Simple and clear. (by volang)

by volang

When you subtract pointers to get the index...

Address(ptr) - Address(ptr) returns the index/pos of a value in a array. Now I wonder, does the system already now in advance what two positions/numbers to use ...

[15 replies] Last: https://www.techiedelight.com/find-index-element-array-cpp/ (by againtry)

by closed account jLAfz8AR

Populating structure variable with multiple values from file

For this program I'm trying to get the variables of the structure to include specific lines read from a file. I need "name" to include the move names listed in ...

[2 replies] Last: There is also operator overloading : // expected format: name on fir... (by keskiverto)

by Xianenavi

C++ VS Visual Basic?

I have heard pretty much everyone who knows about programming say that c++ is better than VB, from what i can see, vb does the same stuff C++ does, but with mor...

[3 replies] Last: I agree, the fact that VB scripts work right out of the box is a plus.... (by Ganado)

by akash16

Run batch file from C++ code

Hi All, I want to run a batch file from specific environment in my sample C++ code. Bellow are the steps: 1. open a environment specific command prompt ...

[7 replies] Last: Yeah, I usually use ConEmu, but I also use the plain Windows Console a... (by Duthomhas)

by kinganonymous

URGENT please help this code is not running properly i need to submit tommorow

Hi so i need to submit this code tomorrow as my school project but its not running properly this is a quiz maker with built in calculator code which can make 2...

[2 replies] Last: void quiz_read() {cout<<endl<<"Hey There how are you today:"; gets(doi... (by kinganonymous)

by julie2019

Belfast Trip Report

Rob and Jason are joined by Timur Doumler. They discuss some of the news that occurred at the C++ ISO meeting in Belfast where the committee responded to some o...

[no replies]

by akash16

To get all file names in directory

Hi All, Requirement is: Need to get all file names in given directory. I found some ways using third party lib - boost but I am don't want to use it. I wa...

[5 replies] Last: I want the solution within standard C++... I am using Visual Studio 2... (by Repeater)

by m00se

Octree and Node constructor for Triangle& pointer to reference error

Introduction Hello i am a first time poster long time lurker of c++. I recently started again on my gfx programming training and decided i would challenge my...

[3 replies] Last: ya i didnt notice it at first changed them to vector<Triangle> and vec... (by m00se)

by hirailyas

sum of vector elements

Hi, i m reading 2 measurements from oscilloscope for eash diver setting( 15) i am geeting the desired out put 2 measurements for each setting, now i want to ...

[5 replies] Last: First of all, please use code tags when posting code. See http://www.c... (by keskiverto)

by cjoce

Class Member's Pass

Hello! I found this example online and am trying to play around with it. I know it is possible to get the sum of the array in the PutData() member function, b...

[1 reply] : First, your program has syntax errors: In member function 'void Empl... (by keskiverto)

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