Beginners - May 2019 (Page 7)

Sorting an array of structures with a pointer
 
Hi, I have a pointer to an array of structures in a DLL that I need to sort. I have searched the In...
[6 replies] Last: Note that the other form of sort that anup30 did use: std::sort( ar... (by keskiverto)
Inheritance of Specialized Class from Non Template Class and Template Class from Specialized Class
 
I have two questions which I am unable to solve myself. Questions are, - Is it possible to inh...
[1 reply] : I think that the answer to both questions is 'yes'. See https://en.cpp... (by keskiverto)
Problem tracing -Code Output
 
Dear C++ Community I do not seem to understand, the following code`s output even after tracing it. ...
[4 replies] Last: Rather than get lost in alphabet soup, rename variables to be somethin... (by salem c)
by Hezyln
My final value is not consistent.
 
My final value is not consistent.
[2 replies] Last: Hello Hezyln, PLEASE ALWAYS USE CODE TAGS (the <> formatting button... (by Handy Andy)
by dumguy
Need help with int pointer conversion
 
Hello all I'm just starting with cpp for arduino/freeRTOS. I created a simple program whic creates...
[5 replies] Last: Oh, it's probably best to ignore my post. I should have read the OP m... (by mbozzi)
search an array of strings
 
how would i create a function that searches a data from an array of strings?
[4 replies] Last: my initial post got reported too... so i dont know (by gongong)
issue with classes and vectors!
 
I've been trying to make a program, using classes and vectors, and I keep running into this error, o...
[3 replies] Last: figured it out! (kinda) Basically, something about my PersonalLibr... (by AshleyHideo1917)
Fill struct array from text file
 
Hi, I need to create a struct array, pass by reference into a function, and the fill the array th...
[5 replies] Last: >"Is there a way to read one line at a time?" yes. use getline() #inc... (by anup30)
by cc046
dynamic programming
 
PROBLEM: You are provided with a set A. A good range is the largest range of elements that conta...
[8 replies] Last: thanks Duthomhas I got 100 points.. Thanks Again (by cc046)
Adding to file name using a (string)variable + "test.txt)
 
username is a user input and I wanna name a file as username_friends.txt I used this line of code ...
[5 replies] Last: Damn I didnt expect such fast answers, thank you for your time (and pa... (by closed account 17Mo1hU5)
How to remove data from the file i made?
 
I need to remove specific data from the file #include <iostream> #include <fstream> #include...
[5 replies] Last: excuse me i plan to use array as to keep track of all those teachers ... (by CoolAvocado)
by Pecvx
std::map and operator<
 
If you make a map<key,value>. Is it necessary for the key datatype to have the operator< defined? Gi...
[1 reply] : If the key is not LessThanComparable (or if we want a different crit... (by JLBorges)
Print repeating diagonal in array
 
Hi, I'm trying to print a repeating pattern of numbers, going from 1 to 5, in the diagonal of a 2...
[1 reply] : Use “modular arithmetic”. The idea is that you have a remainder. ... (by Duthomhas)
Memory management
 
Hello, I have a theoretical question about programs memory. When I'm about o run a program, the O...
[1 reply] : Well the OS doesn't know in advance what a program is going to need. ... (by salem c)
Printing array using pointer logic
 
Hello, I was trying to print an array of integers using pointer logic to it. So, as an integer u...
[2 replies] Last: Got it! Thanks! (by Lucas Fiorini)
Copy constructor and assignment operator invoked at same time
 
Dear C++ Community I found an interesting question in my test about describing a circumstance in wh...
[1 reply] : I am right in assume they want a real-life example? As real-life ... (by mbozzi)
Copy constructor invoked question
 
Dear C++ Community I encountered a question, if the following program fragment was run the copy c...
[1 reply] : - The copy constructor would not be invoked on line 7. By definitio... (by mbozzi)
by ICantC
finding items in generic list
 
I have a template list class of template nodes and I'm trying to put all the functionality in a sepa...
[5 replies] Last: iter = std::make_shared<node<T>>() = list.head; ¿what? ¿why there ... (by ne555)
PPP chapter 16 exercise 4 - read access violation.
 
I'm currently trying to complete exercise 4 in Stroustrup's Programming Principles and Practice, whi...
[4 replies] Last: gdb is a debugger, a wonderful tool used to fix runtime and logic err... (by grumblesnake)
Combination
 
hello everyone i'm trying to make a combination of characters in c++ it goes something like that: ...
[5 replies] Last: Using GMP (the snippet runs a small finite loop, starting with a spec... (by JLBorges)
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