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General C++ Programming - November 2016 (Page 2)

Im having some trouble with linked lists. I am supposed to create two linked lists that both contain eight nodes. The first list has a pointer called uno and th...

[no replies]

by mbozzi

Avoiding stack overflow from deeply-nested destructors

I have a relatively large DAG (several million nodes). Since each node has (shared) ownership with its children, the stack is overflowing when large sub-graphs...

[4 replies] Last: I think in my case I'll be able to get away with increasing the stack ... (by mbozzi)

by trno224

fatal error LNK1169: one or more multiply defined symbols found

Keep getting following error and I do not know what is cause it: 1>ProgrammingAssignment3.obj : error LNK2005: "struct node_2 * beginning" (?beginning@@3PAU...

[1 reply] : Term.h, line 21. You are defining a variable in a header. (by PanGalactic)

by Gyiove

weird matrix multiplication results (eigen)

Eigen::Matrix<int, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor> test(3, 2); test << 1, 2, 3, 4, 5, 6; Eigen::Matrix<int, Eigen::Dynamic, ...

[2 replies] Last: oh god, thank you so much. I checked my calculations so many times, ju... (by Gyiove)

by JUAN DENT

Is it possible to obtain the type of the first parameter of a lambda?

Hi, I have the following lambda: auto selectViaCategory = ( const std::string& categoryName, const shared_ptr<CreditCardStatementLines>& lines) { r...

[5 replies] Last: ...or template<class F, decltype(std::declval<F>()(""s, nullptr))... (by Cubbi)

by ayoubou

bayesian classifier

hi everyone I have to classify whether a given person is a male or a female based on the measured features. The features include height, weight, and foot size....

[1 reply] : Did you write this program yourself? If so I am sure you can explain i... (by gunnerfunner)

by DragonOsman

Trying to Write a HTTP Request Parsing Function in CS Course

In my CS course on edX, I need to write four functions that the staff wants us to write in a server implementation code written in C. One of those is parse() w...

[no replies]

by wahaha11

how to compare words in c++

i am asked to remove duplicated words from a text and write to a new file in c++. I am some ideas but just don't konw how to write it out. I want to compar...

[6 replies] Last: You need to store two strings at the same time. Read one word at a tim... (by Chervil)

by SamT1234

Code Blocks

Good morning. I am new to programming and "Code Blocks". I wrote a program and want to compile and run it, but it says I have an invalid compiler/debugger. A...

[6 replies] Last: No. As long as you chose to use the GNU GCC compiler while setting up.... (by boost lexical cast)

by sindhushere

C++ Code Outline

Can you give me the outline for a code. I want to count the number of girls and boys entering a exam hall. This counting i am planning to do through swipe machi...

[2 replies] Last: Improved version on Stewbond's code (aside from changes in style and o... (by boost lexical cast)

by helo12

I am getting a no match for operator error and need help hunting it down.

///////////////////////////////////////////////////////////////////// main.cpp #include <iostream> #include "StringTree.h" using namespace std; i...

[5 replies] Last: However I do not necessarily understand why that changed or fixed thi... (by Chervil)

by mrphilipp7

Issues with set precision

I am writing a program on Mac that compares costs + tax(6.5 %) I choose something that is $5.00 plus .325 tax. Whenever i use cout<<setprecision(2) to only dis...

[3 replies] Last: setprecision() affects the way the number is displayed, but it doesn... (by Chervil)

by SanctionedTrees

Writing from text file to multi-dimensional array.

What I'm trying to figure out is if it's possible to write a chart with numbers and words into a two dimensional array. I have this in my text file: Nam...

[3 replies] Last: Maybe have a struct/class holding the name and exam scores? struct S... (by integralfx)

by kevinros

input the numbers of characters in a string

I was trying to resolve this activity with differents methods but I feel that I 'm so closing. thank you the Out put expected is number of characters: 13 en...

[5 replies] Last: Thank you!!!!!!!! It works perfect!!!! (by kevinros)

by trno224

Searching text file with prefix

I have a text file with a name/place on each line. Is there a simple way of searching the text file based on a prefix entered by user and printing every line th...

[2 replies] Last: Read the entire file line-by-line. If the line starts with the prefix... (by mbozzi)

by r 4 raja

Operator precedence in C++...

Explain the expression. 3/2*2. compiler display a result 2. How is it possible the result...

[9 replies] Last: Hi all Thanks for your valuable solution.. (by r 4 raja)

by brandle103

class and strings

I am trying to write a text file but I am getting an error with the "open.file" for the Lat_name() function. #include<iostream> #include<string> #inclu...

[1 reply] : PLEASE use code tags, it makes reading your code much easier. You can... (by closed account E0p9LyTq)

by andyramone

Signatures for functions accepting functions as parameters

std::for_each requires a function that accepts a single parameter of some type and returns void. However, its implementation actually doesn't require a type o...

[3 replies] Last: Even with std::function, templates are the better way since std::funct... (by Cubbi)

by phamminhphuong

Class and delete function

Hi everyone, i am working on this assignment and there are something i dont understand 1st:Change the push function. It will take a parameter that is a Car by c...

[no replies]

by trno224

Searching text file with prefix

I am writing a program that reads in a text file that has a name of something, and a weight associated with that name and and stores it in a linked list and sor...

[no replies]

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