Beginners - C++ Forum - October 2020 (Page 5)

Hello fellow geeks! So, i need help with a bit of an assignment. i need to get the following output to print: 9 8 7 6 5 4 3 2 1 Only using the code b...

[6 replies] Last: #include <iostream> int main() { for ( int i = 9; i; i--) std::cou... (by lastchance)

by HelpMeBro

int Array[]

I tried a lot of things but failed. int student ; The number 3, how can I ask user to input there desired number here? I wanted to run for command next. B...

[15 replies] Last: Thanks a lot, everyone. (by HelpMeBro)

by TheTyrantGamer

assistance with Logical NOT Operator

I am new to c++ and I am not sure in what situation should I use the ! not operator? I know what it means and does but not sure how one would go about using it?...

[1 reply] : Let's say you have a function that returns a bool. bool foo(); No,... (by doug4)

by briancb2004

function Prototypes First timer

Wondering if I have this setup correctly? Supposed to create a prototype and define it. Also not supposed to use cmath or POW function. I feel like I am close ...

[7 replies] Last: Thanks jonnin after you said that I remember using that way before and... (by briancb2004)

by propvgvnda

Connect main.cpp, functions.h and functions.cpp

Hello, I want my functions to be declared in functions.h, I want their bodies to be in functions.cpp and I have my main.cpp, which calls these functions. How to...

[1 reply] : $ g++ -c main.cpp $ g++ -c functions.cpp $ g++ main.o functions.o -o ... (by ne555)

by NewtoCodinghippii

Homework help

My program is supposed to make a mixed fraction. for example, the fraction 7/2 should be outputted as 3 1/2. The fraction is still not coming our correctly with...

[8 replies] Last: The display question raised at the start is solved thus: #include <... (by againtry)

by FanOfThe49ers

Cannot convert '__gnu_cxx::_alloc_traits<std::allocator<std::_cxxll:basic_string<char> (1,2,3)

what does this error mean at line 96? // Program to read a CSV file containing company items into an array of structures // // Author: // // date: ...

[43 replies] Last: Thank you i appreciate it (by FanOfThe49ers)

by Shruthi LS

python-cpp for loop

How to write the below python for loop //Here the obj is the list of objects for i, j in zip(obj[:-1], obj[1:]): Tank you

[3 replies] Last: Consecutive elements? In that case: #include <iostream> int main() {... (by keskiverto)

by MaxGreen

ascending&descending order

hey lads, I am stuck cause of my lack of attention I guess, the code below works fine for displaying ascending order of a vector using pointers. w...

[3 replies] Last: @salem c - thanks for your advice, I will keep in mind. @seeplus I a... (by MaxGreen)

by esteef

HW help beginners

So I am a beginner. This is my current HW question. Write a loop that reads positive integers from standard input and that terminates when it reads an intege...

[4 replies] Last: Yes andy you are correct i will do that from now. Seeplus thank you ... (by esteef)

by Emil Enchev

This bad, bad printf()

I had heard that she's a bad girl - but I did not expect such unbridled behavior :-)) #include <stdio.h> #include <stdlib.h> int main() { int choice; ...

[4 replies] Last: May be you are right coder777. Its cpp.sh site problem. They'll fix it... (by Emil Enchev)

by djcampbell

Invalid operands for binary expressions error

I am following a Ray Tracing series to create a custom ray tracer with C++. There are several custom classes that are being created but only two are relevant fo...

[5 replies] Last: This is the tutorial https://raytracing.github.io/books/RayTracingIn... (by djcampbell)

by FanOfThe49ers

Cannot convert '__gnu_cxx::_alloc_traits<std::allocator<std::_cxxll:basic_string<char>

what does this error mean at line 96? // Program to read a CSV file containing company items into an array of structures // // Author: // // date: ...

[3 replies] Last: @FanOfThe49ers, This is the same bunch of problems as your previous t... (by deleted account xyzzy)

by simulated sushi

How to replace specific character within an array with another character from an array?

???

[3 replies] Last: string s = "blah blah # moo ? words"; size_t here = s.find("#"); s.r... (by jonnin)

by rovert456

Returning functions

I am trying to do an assignment where I call from my second function to answer my first. There is not much in my book on how to do this the way the assignment a...

[8 replies] Last: good catch on the int/double. "a way around this would be to create ... (by jonnin)

by closed account oivD8vqX

How does std::array know it's size?

I wrote this script so I could look at data structures. When I looked at a std::array<char,3> I was surprised to see that it's size was three. So how does it kn...

[7 replies] Last: address_view(std::cout, &a1, sizeof(a1)); That would give an erron... (by deleted account xyzzy)

by nathamael404

Floor and ceil using if then

how to run Floor and ceil program with if then? i have make the program but i cann't result. someone maybe help me,please this is my program: #include <st...

[3 replies] Last: thankyou salem c and seeplus,i got itand my code has been succesfull (by nathamael404)

by Jeff Viray

Simple charade game

Hello! I was thinking of making a charades game. Just a simple one wherein when you run the code it will display a Category and then the Word that the user will...

[1 reply] : You need to store your words, together with its category. You need som... (by nuderobmonkey)

by soulworld05

confusing with argument

I get the idea of how this work but I don't really understand how did it bring the information by using printDouble(num); int num {getvaluefromuser()} would go...

[3 replies] Last: I'd recommend taking a look at a tutorial about functions, for example... (by MikeyBoy)

by soulworld05

the ( ) and no integer

I did this, following the tutorial, but I want to 100% understand why int getNumber() doesnt need any integer inside the ( ). #include <iostream> i...

[12 replies] Last: int print(int x , int y) // it is int because it carry x and y over. ... (by MikeyBoy)

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Beginners - October 2020 (Page 5)