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General C++ Programming - October 2017

Hi guys, I have a question about vector iterators. Maybe it's should be in a beginner thread, if yes I'm so sorry about that. I looking at the std::find_if fun...

[2 replies] Last: OMG .. shame on me.. ty for this quick answer (by Tony321)

by PG1

Help needed : getting LNK2019: unresolved external symbol "void_cdecl ..." error

Thank you everyone. We were able to progress. However I am unable to append file. I put the app while opening the filing but it is not happening still. Actua...

[3 replies] Last: Another error, on several lines (throughout the program): The logical... (by Chervil)

by abcdef123

Saddle point- Class - Garbage value

Ques. To find saddle point of the matrix using classes Doubt. The function display giving garbage value of the contents of matrix. Why? Code : #include<iost...

[3 replies] Last: if that the case then all you need to do is not create a new variable ... (by closed account SECMoG1T)

by SSteven

Concepts online implementation

Have C++ concepts been implemented by any online compilers? If so, which one(s) and where can I find syntax details? Thanks.

[2 replies] Last: As noted in http://en.cppreference.com/w/cpp/language/constraints , Th... (by Cubbi)

by kapil2905

Is there any function to see all member varibales and functions of a library class in C++

Hi ppl :) Is there any way to print available member variables and functions for C++ inbuilt classes, like string and vector. Something like dir(str) in p...

[4 replies] Last: Reference documentation for C++ Standard Library is a very good thing.... (by keskiverto)

by comp121

static parseint

The program I am doing has to have a static parseInt(const string& s)in it I have tried different ways to do this but nothing work I get errors our teacher ga...

[3 replies] Last: a string is made up of characters. so if the user types in 1234 it is... (by jonnin)

by Extorsin

Structure program not running correctly

Hey, have a assignment due tomorrow and i cant get my program to work the assignment is Define a structure called Class with name (string), units (int) and ...

[2 replies] Last: Is there a question in there somewhere? ... and i cant get my progra... (by doug4)

by bst

classes

nnk

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

by cybernetykpl

Linux SIGALRM

HELLOW, I need to do a program in c ++ under linux: alling the alarm function (sec) will bring the SIGALRM signal to the ordering party after a second. A pro...

[3 replies] Last: alarm() raises a software interrupt, or signal. You must install a si... (by kbw)

by comp121

Error message

I am having a problem with one of my class excercises it is the last one I have to do. I get the message c2440 '?':cannot convert from 'overloaded-function'to '...

[2 replies] Last: Thanks (by comp121)

by verdantgale

Not sure why this isn't reading from a file correctly

#include <iostream> #include <fstream> #include <string> #include <sstream> using namespace std; class Inventory { private: string desc; // Description in...

[7 replies] Last: Thank you @Chervil! Thanks for letting me know what was wrong with it,... (by verdantgale)

by jeanpaulw

reading 3 lines each time froma file

Hi, i have a file with 44 LINES, the content is: AAAAAAAAAAAAA 1111111111111 2222222222222 77777F7777777 FFFFFFFFFFFFF VVVVVVVVVVVVV XXXXXXXXXXXXX W...

[4 replies] Last: Keskiverto is 100% correct but I thought I'd add a little more detail.... (by SamuelAdams)

by nattynatnatty

How to do numpy's dtype?

From what I've seen floats and doubles have different levels of precision based on what computer you run/compile it on. I've also seen numpy's dtype. An example...

[3 replies] Last: Numpy is open source, is it not? Therefore, you can download and read ... (by keskiverto)

by danewind

Help with printing out indices of array!

Basically what I'm trying to do is create a search function that takes 1 parameter of type T, as the value the user is looking for in the SearchArray. I have co...

[1 reply] : index is not initialized. (by ne555)

by DragonOsman

PPP2 Chapter 19 Exercise 5 - Class Int

Exercise specifications: Define a class Int having a single member of class int . Define construc- tors, assignment, and operators + , – , * , / for it. Test...

[10 replies] Last: > What do I do to fix this? For the two ways in which this can be fi... (by JLBorges)

by SSteven

user-defined manipulator: Format

Stroustrup ["The C++ Programming Language, 4th Ed", pp 1097-1098] has provided an example of an interesting user-defined manipulator represented by the Format c...

[9 replies] Last: That the type itself (the user-defined manipulator) can be reused over... (by JLBorges)

by Divyansh1302

Files in c++

Hi guys, I want to make a programme in which I want the programme to read from the file edit it using classes plz help thanx

[1 reply] : What have you done so far? What, specifically, are you having trouble... (by MikeyBoy)

by mlass7886

I need help with the total.

Hey, guys I need help trying to total these three columns individually. Thank you. #include<iostream> #include<cmath> #include<iomanip> using nam...

[1 reply] : duplicate: http://www.cplusplus.com/forum/beginner/223524/ Don't do ... (by TheIdeasMan)

by bradley0594

OOP

///

[3 replies] Last: int numberCourseworks = 0; Module *module = new Module("<< OO Program... (by TheIdeasMan)

by wishlist

Find length of every word.

While bored of DBs and Oracle started practicing C++. Here is the problem: It's requested, they want me to create a char array, fill it with words (doesn't ...

[4 replies] Last: > accessing char arrays using loops seems to be the best way in c++ U... (by JLBorges)

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