Beginners - March 2019 (Page 14)

How do I clear the buffer?
 
Hello! This is some code designed to take the first character of a name inputted by the user and wip...
[18 replies] Last: Probably the premiere woman in computer science, Rear Admiral (Lower ... (by closed account E0p9LyTq)
by vysero
Loop through vector
 
I want to loop through this vector: std::vector<DynamicSdmProtocol::DynamicSdm*> m_devices;...
[3 replies] Last: Ah I see now, this was my fault, size() is correct. (by vysero)
by cash
vector insert function
 
My program should use the function find_if() to find the odd numbers in the vector and add a -1 in f...
[9 replies] Last: Iterator is more about making ++ polymorphic than about hiding the poi... (by keskiverto)
by Majeek
Improve Beginner Code
 
So I'm pretty new to C++ and after making this little game after I finished the 1st section of my le...
[5 replies] Last: Lets look at HiddenNumberGenerator. You want four unique digits, where... (by keskiverto)
Shallow/deep copy
 
Hello, I have a small code here which results in an error message. class Dummy { public: ...
[11 replies] Last: Constructor constructs a new object. Assignment modifies existing obje... (by keskiverto)
Please help
 
7. Consider the following declaration: class Strange { . . . }; (a). Write a statement th...
[1 reply] : Read this -> https://www.learncpp.com/cpp-tutorial/93-overloading-the-... (by salem c)
What's wrong with my code?
 
I'm trying to code a program that asks a student for class , year, unit, grade and then displays tho...
[4 replies] Last: So I did that but now instead of asking for Course #1 it just duplicat... (by avaldivia)
grab first char of a string
 
Hi, I need help grabbing the very first character/letter of a string. As a beginner, I cannot use a...
[12 replies] Last: '\n' is not the null terminator, it is the newline/carriage return. ... (by closed account E0p9LyTq)
by Vetzo
strerror_s: unique_ptr and char array+delete
 
Hello Forum, How do you use std::unique_ptr with strerror_s? std::unique_ptr<char > pcMessage; ...
[3 replies] Last: Ah, thank you both. (by Vetzo)
Beginner to class problem
 
Hi, I'm a student, and my c++ class has an online homework called zybooks and it's a mixture of par...
[3 replies] Last: Is virtual something that should be used for classes in general? vi... (by AbstractionAnon)
by Majeek
"int" to "vector <char>"
 
I would normally just do "Vector.push_back(String )" in a for loop (for strings) but I cant do Int ...
[4 replies] Last: Lines 2 and 3 are creating a duplicate variable name. Oh well how d... (by AbstractionAnon)
Trouble passing two digit hex values from .txt file into array
 
Hi, I am trying to use stream to open a .txt file and pass the data inside it into an array. Howeve...
[9 replies] Last: I would do it as a vector and then extract the array from it if you NE... (by jonnin)
reversing struct array's rows
 
Would this take the struct array in temp and reverse it into temp2, then finally flipping the origin...
[8 replies] Last: That's some sick code. Thank you. (by jjordan33)
by AL88
Why is this segfaulting?
 
I'm trying to write my own address card database program and I am testing out different things like ...
[1 reply] : Maybe give your vector a size? vector<addressCard> spareVector(numbe... (by salem c)
Integer cin
 
Hello, for example i have this code int a, b; cout << "enter a number " << endl; ci...
[4 replies] Last: Oh, so 1 3 2 should result in a=1 and b=2. (by salem c)
Assigning value to constant integer in Class
 
Hello, I just started making the following program, Make a class Pointer Declare a 2D integer po...
[5 replies] Last: Also if you're using modern C++ you could assign the value in the defi... (by jlb)
by JayGln
pragma or ifndef?
 
I was finishing up an exam my professor gave me with only part of the .h file to answer some multipl...
[11 replies] Last: Funny how these topics reappear so regularly. #pragma once was once... (by Duthomhas)
Error binary operator << in creation of calendar
 
when I try to run the program, in lines 24 and 53 are giving me a binary error. If Anyone can help A...
[1 reply] : Why don't you enclose your code with code-tags? Expect you that we cou... (by nuderobmonkey)
Help Required
 
Another zero-effort codechef problem poster. If your only skill is copy and paste, then just give up...
[4 replies] Last: I will if you can point to it. If i see it I will, but if you already... (by jonnin)
by AL88
How can I replace the existing vector?
 
How can I replace the existing vector on line 170 with what is read from the file? What can I use in...
[1 reply] : Use std::vector 's erase() or clear() methods before you start pu... (by closed account E0p9LyTq)
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