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Beginners - August 2017 (Page 9)

by kingkush
Priority Queue reheapUp function not ordering correctly
 
I'm trying to write a function to maintain order in my priority queue however it doesn't seem to be working. The program compiles fine but i dont get the output...
[2 replies] Last: yeah! After looking over my notes again i was confusing the element an... (by kingkush)
by puertas12
dynamic_cast and polymorphism (inheritance + virtual functions) in order to generalize different types under a common base-type
 
I'm learning about "dynamic_cast" and wondering why is useful to have this type of cast and I ended on this thread: https://stackoverflow.com/questions/2228216...
[11 replies] Last: [quote=keskiverto]Obviously one cannot call them via Base* Hi, I wa... (by TheIdeasMan)
by omer123
When to use try-catch and when to use if-else?
 
Hi. I wonder when to use try-catch and when to use if-else, I think they both achieve the same result.
[4 replies] Last: Thanks FurryGuy (by omer123)
by ThatGrayRock
New to Functions()
 
I'm not really sure if this is how you use functions. There are errors saying "too many arguments to function 'int OutArray'" #include<iostream> #include...
[7 replies] Last: Thanks for the help guys. (by ThatGrayRock)
by hihihello
Read input file into array using while loop?
 
Hello, I'm trying to read some numbers from a file. The last line of the file is a sentinel, -1. I am supposed to write the arrays into another output file late...
[6 replies] Last: It worked, thank you lots jlb!! (by hihihello)
by closed account 1vf9z8AR
text file
 
I am writing the text file in different lines but when read my file it shows in same line #include<iostream> #include<fstream> using namespace std; voi...
[3 replies] Last: And yet you have not made any of the changes I suggested. (by Duthomhas)
by Tobruk
Identifier not found even with forward declarations
 
I have a project consisting of several files. This is their interdependency: Header interdependencies main.cpp -> all below io.h -> classes.h classes.h -...
[2 replies] Last: For future users stumbling upon this thread and looking for solutions,... (by Tobruk)
by rajhansk
Is graphics.h outdated?? and if yes then is there any other graphics library
 
Is graphics.h outdated?? and if yes then is there any other graphics library??
[2 replies] Last: Sluggishness has nothing to do with OpenGL and everything to do with d... (by Duthomhas)
by MeganFox
Error in Class example
 
Hi everyone, I'm trying to display the sentence "my name is james" in main() using class. But I could not figure out what's giving me error in this code. Can so...
[2 replies] Last: Ohhhh i see! Thank you so much for the help arbwok! :D (by MeganFox)
by ImaNoobatDis
Im noob
 
Write your question here. One of my project has a question and it has 6 different option and i want the user to select 2 option only
[1 reply] : The secret to getting good help is asking good, detailed questions. d... (by jonnin)
by Shyanie
How to resolve the bugs
 
Hi, the numbers seems to be jumper up after I call out the loops. How to make sure that the random numbers run accordingly with the loops? #include<iostr...
[8 replies] Last: Hints: #include <ctime> #include <iomanip> #include <iostream> void... (by Enoizat)
by muratk
<fstream>
 
Hello , i am new on this <fstream>, i want to make a program which will asks the exact key word from the user , if user types it wrong ,it should give error.Wha...
[5 replies] Last: Concept of the program , it should open "songs.txt" file , if user t... (by Chervil)
by cactusinapot
Gathering information
 
I am working on a program which allows the user to enter information about a student, the inputs are: surname, last name, courses. So an example of how it would...
[2 replies] Last: Works with that piece of code, cheers! However it only types out the ... (by cactusinapot)
by dubley
Calling a function that takes an array as argument
 
This is an adaption of a Chapter 7 review question from Stephen Prata's C++ Primer Plus. I want to output the maximum value in the array as calculated in the fu...
[3 replies] Last: Thank you both very much. The error message was: syntax error: ']' (by dubley)
by Bayan Khorshidi Berkeley
Trouble understanding book example (functions)
 
Hello all, I am having a hard time understanding this particular program presented in my book. I tried my best to write it out but I don't understand the logic....
[5 replies] Last: Makes much more sense now, thank you! (by Bayan Khorshidi Berkeley)
by Wudang
Freeing memory
 
Hello, i am studying this part of Apache module mod_spnego code LPCSTR authorization_header = apr_table_get(request->headers_in, "Authorization"); ...
[2 replies] Last: Have you bothered to check the documentation? https://apr.apache.org/d... (by kbw)
by JeremyBenson11
Undefined reference errors
 
Hey, I'm getting some simple errors, and was wondering if someone could help me out. I've also got a question about header files. When and where should they b...
[8 replies] Last: @ JeremyBenson11 Just so you know, C++ system header files such as s... (by TheIdeasMan)
by arczi w
Sorting an array in a non-ascending order
 
I wrote a program which generates random numbers between -10 and 100, now I need that sorted. To generate the numbers I used an array, now I don't know wher...
[19 replies] Last: Are you learning C or C++? The C++ streams are much safer than the C-s... (by jlb)
by Calibrohawk
Why won't this run properly?
 
I created a little game based off of a video by MakingGamesWithBen. It was a challenge video though, so I didn't copy any of his code. I feel like my code shoul...
[3 replies] Last: Line 33: You have no exit from your loop. You will never reach line 6... (by AbstractionAnon)
by puertas12
What happen when an object is not correctly initialized?
 
I wanted to participate on this thread: http://www.cplusplus.com/forum/beginner/220125/ and I run into a new topic "Reading information from a file" So I was ...
[5 replies] Last: I wonder if in this case can an implicit conversion take place for "i... (by AbstractionAnon)
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