please wait
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by RezaA
How to write a get function for a 2D vector
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| I am trying to get access a specific variable of a 2D vector in another class using "get" function. However, it is vague for me how to ask the code to select th... |
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Jan 8, 2017 at 4:53am
[9 replies] Last: Well picked gunner :) (by closed account 48T7M4Gy)
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by RezaA
"Get" function for a vector
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| I am working on an OPP code and I want to write a get function for a vector. I have a vector and each element of the vector is a class and there is a vector i... |
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Jan 8, 2017 at 4:50am
[2 replies] Last: http://www.cplusplus.com/forum/beginner/205734/#msg974738 (by closed account 48T7M4Gy)
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by iclearwater
'i' remains as 33 after executing the destructor
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| Hi The following programme is from a video tutorial. I think/learnt the aim of the destructor is to release the memory of the constructor. Since that, I don't ... |
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Jan 7, 2017 at 11:59pm
[6 replies] Last: Hi JLBorges, It's very kind of you to keep helping me. I think I (at... (by iclearwater)
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by ayoesquire
I'm not sure if I used the new operator correctly here
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| This is a sequel to a previous thread (http://www.cplusplus.com/forum/beginner/205575/) which involved using getline() with cin.ignore () to store an arbitrary ... |
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Jan 7, 2017 at 8:46pm
[5 replies] Last: thanks boss! I'll get back to you after effecting the corrections. I a... (by ayoesquire)
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| tolower |
| Hi, I have been fiddling with c++ and I can't figure out why I am getting the issue with this conversion function. I created a c-string and then copied each to ... |
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Jan 7, 2017 at 8:03pm
[3 replies] Last: A c-string is an array of characters. But an array of characters isn't... (by Chervil)
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by bluefrog
valarray size?
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| I am confused regarding the definition of a valarray. The constructor is listed as explicit valarray( std::size_t count ); So I assumed std::valarray<double>... |
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Jan 7, 2017 at 6:34pm
[1 reply] : You should be using parentheses() instead of the braces{} in your init... (by jlb)
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by Fajsdie
Don't understand : in special members
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| I am doing the beginners tutorial and I have never seen the : operator after a constructor. Can someone explain to me what Example2 (int initial_value) : total(... |
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Jan 7, 2017 at 5:08pm
[2 replies] Last: thank you, I haven't found this on stackoverflow (by Fajsdie)
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by Icyblizz
"Jumping Into C++".Practice problem.Chapter 7_3
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| I am reopening this topic because the solution to this problem is not complete. When you try to test the related topic code samples you will notice that the pro... |
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Jan 7, 2017 at 4:11pm
[3 replies] Last: I have modified the code to include the prime numbers into the output.... (by Icyblizz)
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by peterbaaij
basic char int conversion
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| Just to exercise i wrote a function to see if a line input (string checkInt) represents an integer and I'm glad it worked. bool checkIntInput(string & checkI... |
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Jan 7, 2017 at 3:04pm
[9 replies] Last: Some of your descriptions are ok, though I tend to look at things from... (by Chervil)
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by bluefrog
c style pointers in c++
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| I am attempting to use c style pointers in c++. I've created a Book class (base) and BookCategory (derived) class. All pointers are initialised to nullptr. A... |
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Jan 7, 2017 at 2:56pm
[5 replies] Last: Hi Thomas, thanks, I never realised one could create an enum class. t... (by bluefrog)
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by Flaze07
struct and classes
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| just a simple question, is it possible to do this struct position { int x; int y; } player, object; class map { private : const stati... |
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Jan 7, 2017 at 12:19pm
[4 replies] Last: doesnt matter now.... thanks for the help though (by Flaze07)
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by bird1234
Question
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| cout << (n % 2 == 0) ? -n : n;// how this line of code is working i am not understanding #include<iostream> using namespace std; int main() { i... |
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Jan 7, 2017 at 11:47am
[6 replies] Last: > first i also thought this like if and else but output is not same T... (by JLBorges)
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| Return Array From Function |
| Hi Friends. I wrote a program to pass three arrays to a function and added them. Now i am trying to return the added array back to main function .. i am not get... |
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Jan 7, 2017 at 11:17am
[3 replies] Last: Arrays work just like pointers (by bird1234)
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by ayoesquire
trying to use the getline() function after an initial use of cin (1,2)
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| I have been attempting to use the getline() input stream to read a string immediately after reading in a number using cin object, but I noticed that when I run ... |
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Jan 7, 2017 at 4:51am
[25 replies] Last: Hello Chervil , I hope you got my mesage. Thank you (by ayoesquire)
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by imohamme5
sort alogrithm with classes
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| Hi guys, I am attempting the following question: A program is required to register user votes for a number of talent contest candidates. When all the votes h... |
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Jan 7, 2017 at 3:28am
[9 replies] Last: JLBorges: as Thomas1965 points out, the compiler supplied ones might b... (by gunnerfunner)
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by newbieg
Mp3 Linux Qt5
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| I'm on a linux and I want to get data out of an mp3. Hang in there because I know the first thing you're thinking is "this dope doesn't have his codecs set up".... |
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Jan 6, 2017 at 11:15pm
[1 reply] : OK, I tried to set up a simple QMediaPlayer, and I got a different mes... (by newbieg)
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by crowdiax25
Overloading Operators
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| Hey there! I'm writing a program that converts the amount of hours input into the number of days. It then uses overloaded operators to manipulate this data, and... |
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Jan 6, 2017 at 8:06pm
[1 reply] : Nevermind! I'm a dummy and was looking at the wrong increment section.... (by crowdiax25)
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| How to detect prime numbers? |
| So, I'm trying to write a program where the user inputs an integer, and it determines if it is prime or composite. So far I have made it check if the number is ... |
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Jan 6, 2017 at 7:32pm
[9 replies] Last: Wow, thanks for all the help! I did it! (by closed account 3vX4LyTq)
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by Yoooooo
Cannot find -liostream
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| Hello. My codeblocks hasn't worked since I turned on the PC today.The compiler literally can't find the iostream library and I don't know why. I gave it the rig... |
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Jan 6, 2017 at 7:07pm
[1 reply] : What is liostream? (by gunnerfunner)
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by longberns
Search and delete in struct vector
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| Hi everyone! I have been cracking my head for some hours now trying to figure out how to do one part of my assignment. Problem: I have a struct of persons ... |
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Jan 6, 2017 at 6:14pm
[10 replies] Last: EDIT: Question title edited Sorry for not including the full correc... (by longberns)
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