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- Beginners
- September 2022
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Beginners - September 2022 (Page 3)
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by SubZeroWins
Floats subtraction and comparisons (1,2,3)
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| Hi, I know of the issues of floating point subtraction and comparison issues but I don't know how to resolve them yet. I also know that you can use Boost or oth... |
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Sep 19, 2022 at 8:50am
[50 replies] Last: Good info, thanks! It is a public non-static member and I am already ... (by SubZeroWins)
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by ninja01
Question about Escape sequences
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| Part I ====== std::cout << "Backslash: \\" << std::endl; std::cout << "Double quotes: \"" << std::endl; I can understand the need of a backslash to inpu... |
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Sep 18, 2022 at 11:44pm
[8 replies] Last: Thank you @seeplus (by ninja01)
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by ninja01
Is there any difference between '\n' and "\n
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| That's right), Is there any difference between '\n' and "\n. |
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Sep 18, 2022 at 9:55pm
[9 replies] Last: Understood, thank you everyone) (by ninja01)
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by ninja01
char8_t (1,2)
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| I am currently using the latest version of code blocks 20:03 But I seem not be able to compile this code: char8_t ch; After couple searches I find out t... |
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Sep 18, 2022 at 8:36pm
[28 replies] Last: One thing that may not be of much importance at this time, but should ... (by deleted account xyzzy)
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by shaefayejem
Child Class reference parent class
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| I am trying to model a car object and I want the car object to have a child engine object but I want the engine object to have a pointer to the car object ... |
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Sep 18, 2022 at 4:35pm
[8 replies] Last: It could be used for reverse look-up. Given an Engine, what Car is it ... (by seeplus)
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by ninja01
What CWG means?
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| In this link: "https://en.cppreference.com/w/cpp/language/character_literal" You can find at the bottom of that page some abbreviation: CWG 912, CWG 1024 ... |
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Sep 18, 2022 at 8:13am
[2 replies] Last: Amazing answer, thank you @mbozzi (by ninja01)
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by cplus2303
Que functions
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| Guys any ideas on how to complete these code including part 2-8 in int main instructions? #include<iostream> #include <queue> template <typename T> ... |
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Sep 16, 2022 at 11:17am
[4 replies] Last: enqueue/dequeue are over-complicated. Also there is a memory issue as ... (by seeplus)
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by jaffe15
Handling duplicate keys as collisions in unordered_map?
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| Hi, New to using hash_tables and unordered_map. I was wondering if there was a way to handle inserting duplicate keys the same way unordered_map handles collis... |
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Sep 15, 2022 at 7:03pm
[6 replies] Last: Yes, just push back. std::unordered_map <std::string, std::vector <... (by Duthomhas)
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by rozick1
Free books (UK)
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| Hello Not sure if this allowed here - if not mods can delete. I have the following programming books which I no longer require: 1. https://www.amazon.c... |
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Sep 14, 2022 at 5:24pm
[4 replies] Last: I live in France - not too far from you. If I pay the postal charges, ... (by Geckoo)
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by learner999
Trying to obtain 3D vector with multiple 2D vectors
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| Hello fellows. I am trying to push_back 2D matrices I obtained from ontain function and I need to have 3D vector by adding these 2D vectors. TO do so, I coded a... |
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Sep 13, 2022 at 9:29am
[4 replies] Last: @Ganado. Thanks you so much :) It is really funny :) I could not see i... (by learner999)
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by MHS1986
Error when building my class
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| Hi, i am busy with a project from school and i am creating a class of a bank account. When i build the class i get an error on 1 of the functions and i dont und... |
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Sep 13, 2022 at 6:09am
[16 replies] Last: Shoh, once again a simple syntactical error... That fixed everything. ... (by MHS1986)
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by Geckoo
std::string s or std::string &s
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| All is in the question. I understand the main principle, but I am wondering why often coders prefer the second way. The both seems legits, but there is some per... |
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Sep 12, 2022 at 3:55pm
[11 replies] Last: I posted a simple question In Python, that's almost an oxymoron! ... (by seeplus)
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by jaffe15
Last output missing when copying input with multiple lines.
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| Hello, When you copy this whole input: test1 test2 test3 and paste it into the running program below why do you get the output: test1 test2 instead of: test1 ... |
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Sep 12, 2022 at 12:55pm
[3 replies] Last: How are you terminating the while loop? With Windows as an example I g... (by seeplus)
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by genkers
why does this else if statement never run?
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| for some reason the else if statement to catch if the denominator number is 0 never runs when y is enter as 0. #include <iostream> using namespace std; ... |
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Sep 11, 2022 at 12:35pm
[13 replies] Last: Yes. I noticed that the same goal can have many different code "shapes... (by Geckoo)
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by cplus2303
Function to display all stacks
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| What is the error of my void function to print all the displayed stack elements? #include<iostream> class Node{ public: int data; Node *next... |
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Sep 9, 2022 at 4:08pm
[9 replies] Last: ... and as a class, then consider: #include <iostream> #include <fo... (by seeplus)
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by cplus2303
Stacks using Array
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| Any ideas on how to convert this program into Stacks that use Arrays? This one right here used an STL. #include<iostream> #include<string> #include<stac... |
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Sep 9, 2022 at 3:23pm
[5 replies] Last: ... and as more generalised, then consider: #include <iostream> #in... (by seeplus)
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| About dynamic programming |
| Hi everyone, I am learning to do dynamic programming but as each time I run on a problem that uses dynamic programming in a sim contest, I try to avoid using dy... |
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Sep 9, 2022 at 12:01pm
[1 reply] : For a couple of articles on Python Dynamic Programming: https://www.cprog... (by seeplus)
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by AlexCantor
Need Help in installing latest Python version on Ubuntu please (1,2)
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| Hello, At present I have on my Ubuntu laptop, I have Python gcc version 11.2.0. I like to upgrade it to GCC 12.2 that was released on August 19, 2022. Are t... |
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Sep 7, 2022 at 6:37pm
[31 replies] Last: Module support with GCC, starting with V11, is partial. Whatever part... (by deleted account xyzzy)
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by ICantC
CMAKE query
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| Hello, I'm trying to build a simply text project using CMake for the first time, but I get undefined reference errors for my calls to pdcurses methods (external... |
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Sep 7, 2022 at 6:01pm
[2 replies] Last: thank you, I'd since looked at that, it turned out that the linking st... (by ICantC)
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by ninja01
Is this a namespace collusion?
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| Consider the example below: namespace ns1 { void func(void){ std::cout << "I am inside ns1" << std::endl; } } namespace ns2 { void f... |
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Sep 6, 2022 at 3:41pm
[7 replies] Last: https://heimduo.org/what-is-a-namespace-collision/ Geared more toward... (by deleted account xyzzy)
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