Beginners - May 2023

https://cplusplus.com/articles/zv07M4Gy/ How to develop an operating system using C++ I found a topic on the cplusplus website where they talk about loader....

[4 replies] Last: From the osdev site above, for OS I can recommend the books by Tanenba... (by seeplus)

by gabzz29

codes infinite loop

my code bugs when i put a long name at line 180 #include <iostream> using namespace std; class calculator{ public: double n ; void ...

[4 replies] Last: Line 205 and 206 in the code above prints the filipino and average gra... (by Peter87)

by Satoshi Yoda

Class with iteration capability like std::map

Good day! I am currently learning C++ and am struggling with implementing some test class, just for illustration. The example class should be iteratable wit...

[12 replies] Last: Referring back to JLBorges's code from above, OP noticed that for( au... (by mbozzi)

by gabzz29

too many arguments in function call

it is related to the calculator class that ive made error at line 117 #include <iostream> using namespace std; class calculator{ public: ...

[5 replies] Last: Check your Boolean logic in line 49. That should be &&, not ||. (by AbstractionAnon)

by Bengbers

Is it possible to export a local created pointer?

In my CPP Basex client (=XML-database) I want to iterate over a set of results. I have copied the logic I found in a Java-client to the following C++ code. (I h...

[8 replies] Last: You should delete the acquire memory in the correct order. Otherwise y... (by coder777)

by ElusiveTau

Should you think of inheritance as composition of base class object?

All of the introductory material on inheritance I've come across teaches that if "class A inherits from class B", that "class A is-a class B", which seems to su...

[9 replies] Last: Thanks for the input, folks. I try to minimize the number of open-ende... (by ElusiveTau)

by anup30

weird program output

How is this possible in the following program. total should be equal to 1 million. #include <iostream> using namespace std; int main() { const int n= 1e...

[7 replies] Last: I was casually having a look at this question the other day and today ... (by gedamial)

by gabzz29

redeclation even tho ive removed the other

its saying that ive redclared it and i already saved it but it still says that ive redclared it its at line 12 related to line 24 #include <iostream> usi...

[1 reply] : So what's that string called pass on line 8 doing? (by salem c)

by anup30

are zig & rust 6.5 & 3.7 times faster than C++ respectively? sieve of Eratosthenes (1,2)

https://www.youtube.com/watch?v=pSvSXBorw4A @20:27 see comparative speed/score. cant believe zig & rust are so much faster than C++ ! it's a competition using ...

[32 replies] Last: [quote=Ganado]Maybe try -O5 You got me! :) I'm used to the Solaris com... (by dhayden)

by hassan236

recursive function

There is the recursive function in my program for finding the factorial of the number. In this program i want to find the factorial of 4. I stored the value 4 i...

[19 replies] Last: This recursive factorial will run out of stack memory somewhere betwe... (by oggin)

by newbieguy105

Displaying letters slowly on screen. Typing effect?

I saw how to display letters slowly in the archives and wanted to know how you would turn that code into a function so every cout will type slow } for( int ...

[7 replies] Last: Keeping things easier for you - a simple function ++ #include <stri... (by Geckoo)

by raefnal

add by 4

Write your question here. int incrementer = 1; for ( int i = 1; i < someLength; i += incrementer ) { cout << i << endl; ++incrementer; } //////_///...

[9 replies] Last: This std::chrono thingy is a bit weird. #include <iostream> using na... (by lastchance)

by raefnal

vectors

Write your question here. Is there a way to add all the elements of a vector to an integer sequentially? So...the vector has 1, 2, and 3 The integer is 10...

[2 replies] Last: valarray has some tricks that may work for you. it would be alonng th... (by jonnin)

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