please wait
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by lumbeezl
Streaming data. NTFS v ext4
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| I have data files that I use to stream data into vectors for analysis. When using Windows(NTFS), it takes like 10x as long to stream the file than Linux. I'm wo... |
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May 27, 2019 at 2:44pm
[16 replies] Last: Maybe so, but the elephant in the room is the god-awful slowness of pa... (by salem c)
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| Making a matrice with a headline. |
| Hey! I've been struggling to get this done, I can make a normal matrice work, but I can't figure out how to make it so the first line is a headline, that I wo... |
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May 27, 2019 at 2:18am
[8 replies] Last: I've tried changing the row and column sizes from constants to variab... (by deleted account xyzzy)
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by frek
Use of import instead of #include
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| Hello all, Is it now possible to use import instead of #include in C++ programs? If yes, how to use import in this sample code? #include <iostream> ... |
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May 26, 2019 at 10:43am
[14 replies] Last: In theory, better compile times. (by helios)
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by Dean Roddey
A project you might find useful
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| I recently open sourced a very large project of mine, called CIDLib, on GitHub. I just wanted to make it known to this community. I've posted a bit about it els... |
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May 26, 2019 at 12:48am
[11 replies] Last: No worries. Good thing I gave your last reply a third read before I hi... (by helios)
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by KingOcean34
Anyone can help me to change it to pseudocode??
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| #include <iostream> #include <cmath> using namespace std; int main() { double x; int n; cout << "x: "; cin >> x; cout << "n: "; cin >> n; ... |
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May 24, 2019 at 6:47pm
[10 replies] Last: line 12 in that code how to change to pseucode or even flowchart will... (by MikeStgt)
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by Dee5
finding largest prime number in a file (1,2)
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| hello guys,Anyone having an idea of creating a programm that is able to find largest prime number in a file containing 100,000 numbers. Also,to print out the ... |
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May 24, 2019 at 1:41pm
[31 replies] Last: I know. But I don't have any good way to know whether a given piece o... (by jonnin)
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by KingOcean34
Urgent Help me!!!!
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| #include <iostream> using namespace std; int main (int argc, char *argv ) { int x,n; cout<<"Please enter values for x : "; cin>>x; cout<<"Please enter values... |
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May 24, 2019 at 1:38pm
[13 replies] Last: #include <iostream> #include <cmath> using namespace std; int main()... (by lastchance)
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by kindgnice
How To Solve throw std::bad_alloc{};?
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| Hello Professionals, Good day. I would like to ask if there's any way I can get rid of throw std::bad_alloc{};? #else // ^^^ Managed ^^^ // vvv Native vvv... |
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May 24, 2019 at 10:33am
[10 replies] Last: I also tried to print the max.size of my std vectors, and this is wha... (by coder777)
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by jpao
Read/Write .MP4 Files WITHOUT Library
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| Hi everyone, I need to make a personal library that can read, manipulate, and write .MP4 files. And I need to do it without libraries. How do you read/wri... |
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May 24, 2019 at 3:09am
[15 replies] Last: Thanks for taking the time to put forward all your suggestions guys! (by jpao)
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by aceadams
Competitive Programming Problem
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| The problem and my attempted code solution is as follows: Farming is competitive business -- particularly milk production. Farmer John figures that if he doesn'... |
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May 23, 2019 at 8:12pm
[6 replies] Last: Thanks soo much! (by aceadams)
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by s l i m
Problem!!! Help!!
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| Hi guys! I have a problem that i hope you give me an advice to solve it. I have writing this code and it doesn't run cuz its a problem. C2562 'Draw':'void' fu... |
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May 23, 2019 at 1:49pm
[4 replies] Last: Show a complete example that reproduces your issue, else you're just w... (by Ganado)
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by iSWATxJOKERi
Trying to finish my unscrambling project
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| Hi, I am doing the project ideas that I found on the forum for people wanting to get better at C++ ( http://www.cplusplus.com/forum/beginner/3473/) and I am stu... |
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May 23, 2019 at 12:11am
[8 replies] Last: :D Hahaha yeah I just learned it today *facepalm*. I went on to the n... (by Niccolo)
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by kitfox
Does C++ have anything like Java's inner classes?
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| I sometimes come across a situation where I want to create a class manages a list of records. The records themselves will never be used outside of the class, b... |
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May 22, 2019 at 8:48pm
[5 replies] Last: for what its worth, in my experience, as soon as you block something f... (by jonnin)
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by Manga
tons of errors
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| vs2019 gives me lots of errors. Here is my code... #include <iostream> #include <vector> using namespace std; class funV { std::vector<int> v; public: /... |
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May 22, 2019 at 5:21pm
[8 replies] Last: Thanks Ganado... adding std:: solved my problem. And yes I will add a... (by Manga)
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by larry burns
How to pass pointer by reference in C?
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| I have the following code in C (not C++): int main(){ double *ptr=0; double x ={1,2,3}; double y ={4,5}; ptr=&x; for (int i=0; ... |
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May 22, 2019 at 4:54pm
[10 replies] Last: you are correct, C does not have references. The two languages are f... (by jonnin)
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by idknuttin
I created a class that acts just like a set but uses OpenMP to run in parallel to make everything faster, your thoughts? (1,2)
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| I created a class that does just about everything a set does in C++, such as insertion, deletion, and searching but I used OpenMP to make it run in parallel so ... |
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May 22, 2019 at 4:37pm
[24 replies] Last: 1. srandom() and random() are not standard C functions. They're UNIX f... (by helios)
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by LonlyNerds
Math Game c++ , division issue.
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| Hello Got a small problem here , I spent 2 days writing this with debugging sessions , alone, here is the thing its working and all but sometimes it just div... |
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May 22, 2019 at 4:31pm
[6 replies] Last: Hey guys thank you for your support , I did learn new stuff and yes I ... (by LonlyNerds)
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| How do call a function in a seperate class? |
| I made a function in, let's say class X like so. In the X.h I typed: void func(); In X.cpp void X::func(){} And I want to use func(); in class Y, in a me... |
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May 22, 2019 at 9:37am
[2 replies] Last: How do I call a function from one class into another? You need to pas... (by coder777)
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by frek
Enum class "put to" operator overloading
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| Hi all, Is the class Color defined below a scoped enum class? Is it due to the word class in its definition? int main() { enum class Color { red, blue, g... |
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May 22, 2019 at 5:42am
[5 replies] Last: > What are the differences between these two, please? They are summar... (by JLBorges)
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by MattC231
Trying to print elements of an array of derived classes
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| In main.cpp, when it gets to void printShapesInArray(...) , the print functiion of the corresponding shape in the array doesn't get called, I believe. main.... |
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May 22, 2019 at 4:04am
[5 replies] Last: > altMenu(shapesArr, arraySize); > Warning C6001 Using uninitialized m... (by ne555)
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