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- Beginners
- September 2022
- Page 2
Beginners - September 2022 (Page 2)
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by ninja01
Unexpected behavior 2!
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| Consider the code below: int total; std::cin >> total; int ary ; for(int i=0;i<total;i++) ary = i; for(int i=0;i<total;i++) std::cout... |
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Sep 26, 2022 at 12:29pm
[9 replies] Last: It's not as straightforward as it looks because it interferes with the... (by Peter87)
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by ninja01
A linux for programming
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| I never used a linux OS, I am open to the idea of using it lately, what is the best linux for programming you advice? thanks |
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Sep 26, 2022 at 7:17am
[18 replies] Last: Got it, thank you everyone) always honored. (by ninja01)
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by rozick1
Work around for limitation of template virtual member functions?
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| Hi I have a Message class which other classes inherit from. The inherited classes will need to have a serialisation member function. I would like to make these... |
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Sep 26, 2022 at 5:44am
[1 reply] : You could use some special-case code for each class, or exploit that T... (by mbozzi)
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by cplus2303
checking if the inputs are valid Palindrome
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| How can I make this program work to determine whether these 5 palindromes are valid or not? #include <iostream> #include <string> struct Result { int... |
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Sep 26, 2022 at 2:27am
[6 replies] Last: thank you guys :) (by cplus2303)
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| building a multilayer perceptron |
| Hello, I want to implement a simple multilayer perceptron for digit recognition. I have started to read the Python primer 5th edition book 2 days ago so I am no... |
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Sep 25, 2022 at 3:31pm
[9 replies] Last: @dvdlly, I am well aware that the code you provided is a header file, ... (by lastchance)
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by ninja01
Unexpected behavior 3!
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| In the following code it is clear that ptr holds an address int nbr = 3; int *ptr = &nbr; std::cout << &nbr << std::endl; std::cout << ptr << std::endl... |
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Sep 25, 2022 at 9:56am
[6 replies] Last: [quote=jonnin]some embedded systems expect you do to this (but their l... (by Peter87)
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by dorito200
Binary search of a dynamic array of strings
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| Hey yall, so for school I have to make a recursive word ladder program, and I wanna put a binary search in it. I have a function that checks the inputted word i... |
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Sep 25, 2022 at 9:08am
[17 replies] Last: OK. We have a winner! Obviously that's what I meant to say when I said... (by seeplus)
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by ninja01
Is this an address?
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| int main() { int *ptr; std::cout << ptr << std::endl; return 0; } I know that uninitialized pointers should be avoided because the... |
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Sep 25, 2022 at 8:06am
[3 replies] Last: Technically it's undefined behaviour. [quote=jonnin]now your program ... (by Peter87)
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by kdrewes
Pointer Practice
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| Hi, I am currently experimenting with pointers and classes. Everytime my pointer reach 80% of its size, I attempt to create a expand it's capacity by 100% by u... |
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Sep 24, 2022 at 9:32am
[3 replies] Last: There's also an error on L72... Also the code can be somewhat simplif... (by seeplus)
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by Geckoo
input parser
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| // here we can write directly our algorithm so as to generate a track inline char algorithm(int t) { return (~t >> 2) * ((127 & t * (7 & t >> 10)) < (245 &... |
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Sep 23, 2022 at 8:42am
[11 replies] Last: For a simplified getNum(), consider: template <typename T> requires... (by seeplus)
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| print every second leaf node from right to left |
| let me say that I have tree and the tree has these leaf nodes from right to left: [ 9, 4, 6,16 ,8,19, 10,8 ], I should write function to print every second lea... |
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Sep 22, 2022 at 4:59pm
[2 replies] Last: Maybe something like (not tried): void writeEveryOtherLeafNode(Node... (by seeplus)
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by d34dc0d3
char* mystery output
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| for first b->readData() i get Enter Student name: Enter Student surname: Enter Student ID: but for second on i get Enter Student name: Enter Student surn... |
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Sep 22, 2022 at 8:39am
[10 replies] Last: where Enter Student name: Enter Student surname: are together when us... (by seeplus)
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by anonomyss
Valid Access
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| This is the code we were given and the question is , Is line 18 (return x;) a valid access and justify your answer. My question is. What is Valid / Invalid acce... |
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Sep 21, 2022 at 2:37pm
[12 replies] Last: @anonomyss: Can you now answer the questions below? class A { int... (by keskiverto)
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by newbieg
They overloaded a struct constructor?
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| I was checking out the "Flare Game Engine" source code for fun, and I came across this: [line 6] class Color { public: Uint8 r, g, b, a; Color... |
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Sep 21, 2022 at 12:22am
[4 replies] Last: Thank you guys, I've already got a couple of situations that I could u... (by newbieg)
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by AlexCantor
#if 1 statements #else other statements
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| In the following preprocessor code what is the use of statements and other statements? When will the other statements be used? Please explain what is the use o... |
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Sep 21, 2022 at 12:12am
[7 replies] Last: Thank you all for the excellent information. Best regards, (by AlexCantor)
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by ninja01
Questions about pointer address
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| Consider the code below: int nbr = 3, *ptr = &nbr; std::cout << ptr << std::endl; int *ptr2 = nullptr; std::cout << ptr2 << std::endl; My output is: 0xb... |
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Sep 19, 2022 at 4:26pm
[9 replies] Last: std::format can print out pointer addresses, it has a format presentat... (by deleted account xyzzy)
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by ninja01
Weird output!
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| Consider the code below: int nbr = 7; string str = "Hello world"; cout << str << ' : ' << nbr << endl; I putted the string literal " : " inside th... |
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Sep 19, 2022 at 4:10pm
[12 replies] Last: Thank you everyone) (by ninja01)
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by anonomyss
Help with code
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| I need to change the count() so that it counts down till 0 but it should still remain a recursive function and should not be a for loop. #include <iostrea... |
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Sep 19, 2022 at 1:03pm
[6 replies] Last: #include <iostream> void count(int counter) { if (counter >= 0) { ... (by seeplus)
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by cplus2303
printing a user input in Queues
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| How can we print user input variables including their ID, Name, and Pages of their document in Queue structure with an int main function? #include<iostream> ... |
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Sep 19, 2022 at 11:40am
[2 replies] Last: thank you so much man :) (by cplus2303)
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by shaefayejem
Override Class member array variable values
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| When I have an array as a class member variable and I want to override the default values by calling a separate constructor. Is what I am doing the optimal w... |
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Sep 19, 2022 at 8:58am
[10 replies] Last: Yes, it's global. But that's fine as it's a global constant. constexp... (by seeplus)
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