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Beginners - September 2017 (Page 14)

Hello. I am trying to figure out what is wrong with my program. Currently it is telling me that "C2228: left of '.cin' must have class/struct/union" and "C2181:...

[4 replies] Last: Thank you very much! (by TonyR1234)

by Ch1156

Creating a more concise C++

I have been thinking about this for quite some time. I have been using C++ off and on for about 8 or 9 years now and one thing that bothers me is that C++ can b...

[16 replies] Last: Complexity exists underneath so that clarity can exist above. Ever lo... (by Duthomhas)

by pizza

output an array class member

Hello guys thanks in advance for your interest! What is the conventional way to output data stored in your array class member? not using a void member function...

[1 reply] : Ideally, you'd overload the << operator so you could say something lik... (by dhayden)

by stonedviper

What is the logic behind the THIS pointer

Hi! I was looking into the this pointer I found lots of information. But nothing behind it's logic as in why should i use it,how is it used. Also I did find ...

[4 replies] Last: I've given a simplified answer, even because it would have been imposs... (by Enoizat)

by Kappa

My dev c++ keeps crashing

So i was typing my code about this payment center using classes, throughout my run i managed to fix the compiler error and once there was no more compiler error...

[8 replies] Last: Returning has nothing to do with IO (cin/cout). Just to demonstrate..... (by Peter87)

by amaroa97

Help finding the average.

I need help finalizing my code. I cant seem to figure out how to get the average in an array of numbers. The program prompts the user to enter ten integer v...

[1 reply] : Average is calculated as (sum of all values) / (number of values) S... (by Chervil)

by aedt

Do classes destroy all its objects when the destructor runs?

Here I have been told to mimic a dynamically allocated int array. Note that uncommenting the destructor causes a crash (double free) /*Write your own integ...

[4 replies] Last: also, your operator= may access out of range (by ne555)

by EpsilonLessThan0

Picross Programming Project Help

I am attempting to create a program to play picross. The game is untimed and on a 10 by 10 grid. It is console-based, so the user will have to enter coordinat...

[1 reply] : I’m trying to understand what your function randomPicture() should d... (by Enoizat)

by closed account 1vf9z8AR

enter like matrix

the code works fine but i want to input the values like a matrix but instead it inputs in a weird way. #include<iostream> using namespace std; int main() { ...

[2 replies] Last: #include<iostream> int main() { std::cout << "\nEnter number of... (by Enoizat)

by ali1525

c++ pointer to string

hello, we recently reached pointers in my class and that section just blew me away badly. my professor gave us some practice lab to hep us get familiar, I'm hav...

[1 reply] : That's a huge block of text for someone to read on a forum. Think of ... (by Duthomhas)

by closed account 1vf9z8AR

initializing array to zero

why doesn't the code work with an & before arr in for loop.(line 8)Shouldn't it start from initial address? #include<iostream> using namespace std; int mai...

[6 replies] Last: > and if re-clearing it to re-use it: > memset(arr, 0, len*sizeof(int)... (by JLBorges)

by arwibrde

How to copy contents of txt file into struct array

I have a text file named "student.txt" with 5 identity numbers and five names formatted like this. p00001 DENNIS p02302 ARRON p04503 TOM p30004 RYAN p00003 DAV...

[1 reply] : > I want to create a structure with two member string variables. > st... (by ne555)

by DanielsRUS

The most frequent range of numbers in an array.

Hi, I am totally new to programming and forgive me for my ignorance. But I'm looking for code that can show me the most frequent range of numbers in an array....

[2 replies] Last: @DanielsRUS, Maybe I'm slow, but it took me a long time to realise fro... (by lastchance)

by Sir Johnathan

How do I prevent a user from inputting anything?

Hello fellow humans. I want to be able to disable/enable the ability for the user to input anything to the console. I'm working on a silly text adventure ...

[3 replies] Last: I am not sure that will prevent ctrl+C or alt+tab or other such things... (by jonnin)

by teeper

Collecting input from file

I haven't programmed in C++ in a long time and now I'm back in school and taking an intermediate C++ class. I have to do two tasks for my first assignment and I...

[14 replies] Last: I appreciate this Andy! Thank you very much :) (by teeper)

by Amiplus

Undefined reference problem

Hello everyone, i'm having a problem related to the undefined reference error. The function below return an error during make like: undefined reference to 'li...

[11 replies] Last: Makefile in many directories. The project is not mine. It's an alread... (by Amiplus)

by zxcllk88

grade-replacement

the question is some school have a grade-replacement policy: a student can retake a course,remove the old grade, and post the new grade in the record. using th...

[1 reply] : Please note that this is not a homework site. We won't do your homewor... (by keskiverto)

by closed account iyRG3TCk

Data validation

Write your question here. Put the code you need help with here.//Assume that this is my structure. struct customer { string firstname; string las...

[3 replies] Last: Thnx Handy Andy and Enoizat.. I appreciate your help.. (by closed account iyRG3TCk)

by closed account Sz6592yv

Working with compilers for errors-Adjacency matrix

Errors: So I have errors that I need help fixing for c++11. This deals with undirected graph in the format of adjacency matrix. prompt: Write a C++ 11 functi...

[2 replies] Last: Ok So I needed to just ad using namespace std; in header file. remain... (by closed account Sz6592yv)

by dimit

Difference between char and wchar_t

In a simple program we declare a char and a wchar_t variable. We initialize them using some values. And we display the output using cout. char value=55, wi...

[1 reply] : wchar_t does the same job as char but it can store more characters (o... (by coder777)

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