Beginners - C++ Forum - July 2020 (Page 7)

by MaxGreen

if/for/while do

pals, have to write a code which: Prints out for "n" nr. of times , the last result of the eq...

[13 replies] Last: Maybe the 4th requirement does not mean the sum of all the results, bu... (by Manga)

by Jens Hirschmann

How to make a class "private"

As a minimal example, consider a library that provides a `Car`, and the `Car` has an `Engine` in it:...

[7 replies] Last: Thanks. I've edited my post. (by dhayden)

by sparki

Conversion to string from int

Hi, why is the output some garbage value at the start of the first 2 bits? and then fine for the res...

[1 reply] : That memset looks wrong. array is an int pointer, size 8 bytes (probab... (by Repeater)

by Xyz57

Code debugging assistance

I could use some help with debugging my code. I am not very good at debugging code so I could use so...

[4 replies] Last: BTW static const PI can best be put inside the class (it's not a data ... (by againtry)

by momof4

how to draw a number in the thousands

I have a function to draw numbers 0 through 999, but now I'm working on a project that is going to r...

[2 replies] Last: How about: void display_number(int num) { for (char digit: to_s... (by dutch)

by newbie812

Read file and input into vector

Hey everyone! I am pretty new to C++ (just started this month) and will appreciate if someone can he...

[5 replies] Last: Maybe something like this: #include <iostream> #include <fstream> #... (by dutch)

by momof4

move once per click

I'm making a very simple game, that involves something happening when a button is pushed. Trouble is...

[1 reply] : you need one of two things. first, check your tools to see if you hav... (by jonnin)

by BennysMaria

How can i change specific elements of an array?

Hello all! In the exercise that I'm working on it asks that I write an input statement that will al...

[1 reply] : #include <iostream> int main() { int a ; int b, c; std::cout << ... (by zapshe)

by HAL8999

What shouldn't you return from a local variable?

Hi. I'm learning C and C++ and read somewhere that you can't return local variables like so #i...

[4 replies] Last: please note that a segfault is not guaranteed, so be careful when codi... (by ne555)

by momof4

Iterating through a list

I have a list of blocks that I have created, and I need to iterate through them and draw each one. h...

[3 replies] Last: This sort of problem is why we now have range based for loops: for (c... (by dhayden)

by John3682

Classes and fractions

hey yall , im suppose to do this assignment but i haven't studied classes yet (couldn't attend onlin...

[6 replies] Last: After you watch the videos, search for "rational" on this site. There ... (by dhayden)

by mrpear2020

C++ regex clarification

Can you please clarify if this is the correct approach to retrieve values of "x" and "y" from a give...

[3 replies] Last: Raw strings were probably added mostly for regexes since otherwise the... (by dutch)

by ElusiveTau

Is it possible to initialize a class' reference member inside a copy-constructor?

In the copy constructor for Person , how do I create a copy of Alice's pet and assign it to the cop...

[12 replies] Last: doesn't compile, conversion from `int' to `Person*' also, stack overf... (by dhayden)

by MaxGreen

do while

hey pals, have to write a code that : identifies how many times variable b got incorrect values....

[3 replies] Last: thanks (by MaxGreen)

by Shruthi LS

Range based for loop in cpp

The below code snippet is python range based for loop with the increment of steps by 2. for ...

[9 replies] Last: You may use C++17 and overload of << operator #include <iostream> ... (by TomCPP)

by Alex4321

C++ debugging help

I have an assignment where I need to find the area of a cylinder. I am only able to get the output o...

[5 replies] Last: Just for interest sake after a bit of compaction etc ... #include <i... (by againtry)

by ElusiveTau

How to write a method to cout elements (of user-defined type) from sequential containers?

I'm designing a little function for general purpose use. The function is called StrItems() and its...

[6 replies] Last: [quote=ElusiveTau]My guess is that execution tries to run to_string(ob... (by Ganado)

by Mif

Can anyone help me with switch loop?

The code compiles and I don't get any error the problem is the loop when you choose for the first ti...

[6 replies] Last: glad you got it. FYI c++ does not recommend C-strings and printf, sc... (by jonnin)

by greenway

Returning values from a void function

I am trying to return the values avgTime and avgGross from the void functions but have not been able...

[7 replies] Last: void readFile() - read the contents of the input file Your calcAvgGr... (by dhayden)

by jkwok678

Deleting 1 copy of a shared_Ptr

Hi,how could I set a shared_Ptr to nullptr? Concourse has a std::shared_ptr<Text> called text. It al...

[9 replies] Last: > I think that may just be a mistake with the const. that's quite a de... (by ne555)

Beginners - July 2020 (Page 7)

C++

Forum