Beginners - C++ Forum

by Ganado

Question about time complexity (1,2,3)

<edit: Somebody removed OP's post. Sad.> One of the people here, Duthomhas, has written about this ...

[47 replies] Last: Big-O Complexity Chart: https://github.com/gibsjose/cpp-cheat-sheet/b... (by deleted account xyzzy)

by a456df

2d Array Help (1,2)

If I have a dynamic 2D array, and I want elements to change depending on a certain element's value i...

[26 replies] Last: @a456df, you want to get an idea of what is best practice by a few of ... (by deleted account xyzzy)

by bsauceda03

World Series

#include <iostream> #include <fstream> #include <vector> #include <string> using namespace std; ...

[6 replies] Last: Ill give this a try thank you! (by bsauceda03)

by CodeMode

I don't understand why this function is equal to 1 (1,2)

I'm new to C++ and I can't seem to understand why the following function is equal to 1: #inclu...

[22 replies] Last: this stuff really should not show up in production code. Its a 'confu... (by jonnin)

by Chikwado

C++ implementation in java/android environment

Good day administrators Please what is ndk and how can one implement it within environment of ide...

[1 reply] : From https://www.sitepoint.com/using-c-and-c-code-in-an-android-app-wi... (by deleted account xyzzy)

by CodingNeedHelp

Need Help with C++ Programming assignment

i'm currently a student struggling to understand C++ Programming and in dire need of assistance. I ...

[4 replies] Last: One possible first refactor as C++ could be as below. You don't say wh... (by seeplus)

by ElusiveTau

Templates: Printing out the contents of any STL containers

I recently came across this code snippet which introduced an interesting template declaration: [...

[2 replies] Last: To finish the answer: your Foo constructor is not marked explicit ,... (by Duthomhas)

by MHS1986

copying a member of a struct array to another member of another struct array

Hi, i am trying to copy a member of a struct within an array to a member of another array in a struc...

[6 replies] Last: You could create a vector in order to store all your dishes. Just an i... (by Geckoo)

by shaefayejem

Are null terminator automatically added by a compiler?

I have a c style string that I deliberately does not allot space for the null terminator? I then tr...

[8 replies] Last: Thank you all for always being helpful! (by shaefayejem)

by bsauceda03

C++ Code Weather

I need help with function countDays(last part) portion it runs but not correctly #include <iostr...

[6 replies] Last: Confirm that the given links are OK. (by seeplus)

by IHaveSmallBrain

Difference between pass by value and pass by reference

I'm having a hard time understanding the difference between pass by value and pass by reference. I k...

[6 replies] Last: There are reasons why passing by pointer or reference is preferred vs.... (by deleted account xyzzy)

by Cyclone

Code stops working after adding if statements.

Hi. I have a bunch of checkboxes used to write different values to a file. The checkBox1 control doe...

[6 replies] Last: That wasn’t the problem. I checked the code in a hex editor and foun... (by Cyclone)

by afduggirala

I dont understand a textbook question

I am learning C++ with the help of a book called C++ Crash Course by Josh Lospinoso. Chapter 3 is ab...

[15 replies] Last: Do take careful notice about GCC C++20 support as mentioned on the GCC... (by deleted account xyzzy)

by IHaveSmallBrain

Question about vector looping

I have 2 programs, the first one: for(int i = 0; i < a.size(); i++) { a.push_back(a ); } Th...

[15 replies] Last: Thanks everyone ! (by IHaveSmallBrain)

by learner999

What type of argument should I use in the function(s)?

Hello everyone, I am a bit beginner in cplusplus and I need to code a small piece of code but I do ...

[4 replies] Last: Thank you so much , problem solved (by learner999)

by rudiHammad

what happens when deleting an object (1,2)

hi, I want to understand the results that I am getting. I did some research but did get an answer f...

[23 replies] Last: that's a bad QC before publishing. Not necessarily re the technical... (by seeplus)

by tonic

Converting data to byte

Hello guys, i want to send some data over tcp, can u do the conversion via static_cast<unsigned ch...

[10 replies] Last: Wow, i heard in programming there are thousand ways to solve a problem... (by tonic)

by AlexCantor

Need help in extracting field values for hexadecimal string (1,2)

Hello, As shown in below C++ program, I have a string with hexadecimal digits Right most two hex di...

[35 replies] Last: Your following code line is not giving abnormal termination: Well, ... (by lastchance)

by jad123xp

Declaring an array inside a function

Hello, I am making a program that takes in an unspecified amount of integers inside an array and add...

[12 replies] Last: #include <iostream> #include <valarray> using namespace std; int get... (by lastchance)

by NormalUser1234

I don't understand what does this piece of code mean? (1,2)

I don't understand what does this piece of code mean and how does it work? Thanks for your help ! ...

[39 replies] Last: @ NormalUser1234 It is a recursive function, so the identity of vari... (by Duthomhas)

Beginners - July 2022

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