General C++ Programming - C++ Forum - September 2019 (Page 4)

by darnoceloc

Use of functor within transformation

What would be the point of defining constructor methods within the class below? The output of the c...

[18 replies] Last: Okay, that clears it up. The alias cannot be reassigned once it’s bo... (by darnoceloc)

by gedamial

SFINAE applied to class definitions?

Hi. I want to use the SFINAE concept to enable/disable a class at compile time. template<ty...

[2 replies] Last: Oh hadn't set Visual Studio to support C++17! Thanks (by gedamial)

by Arenngor

Completely Confused

Hi, I have taken one previous course in C++ which is all the experience I have. My new class assigne...

[9 replies] Last: That sounds like a lot to cram between now and the 16th. I'm not sure... (by Niccolo)

by bembel

Best way to combine C allocators and smart pointers?

Hi, I've come across a library that's written in C, and uses allocator and deallocator functions to ...

[2 replies] Last: Perfect, thanks! (by bembel)

by CharlesPhillips

Parsing Data From Text File

All - I must be missing something. I am reading in a text file which consists of repeating three lin...

[10 replies] Last: had not seen the >> ignore >> but that looks handy. It is nothing sp... (by deleted account xyzzy)

by icarolima

Best way to compare two identical parallel programs

I have two identical purpose programs made in C++ and i need to compare the total execution time, to...

[3 replies] Last: I created this to explore the idea. #include <iostream> #include <th... (by salem c)

by herad

While getline() always skips the last line

I am trying to read from a text file using stdin my text file contains something like this: Hell...

[8 replies] Last: doh! Of course silly me! Now it's working thank you! I would still app... (by herad)

by danielforero99

reason why I get a segmentation fault: 11

I've been doing a code to get the combinatory function. it must be a recursive function, using the f...

[2 replies] Last: #include <iostream> #include <algorithm> using namespace std; int nC... (by lastchance)

by caesarra2

I'm looking for 2 types of books, coudln't find any reliable source.

First of all: I'm pretty sure this has been asked a million times before, I'm sorry to do it again, ...

[1 reply] : there are zillions of algorithms books. often it is lumped as data st... (by jonnin)

by luckyt

having a hard time comparing two different types

Hello, I am to search through the gamers vector to find if the names match, say which index it is at...

[13 replies] Last: you guys are awesome! thank you so much. Yeah it would be quite easier... (by luckyt)

by tariqsaba

Where can I get feedback about my code

I have been always looking for a website or a community that I could join, maybe on facebook or Disc...

[3 replies] Last: make as small as possible example of the problem and put it here. 400... (by jonnin)

by Aneiron

Error with Infile.

So when reading the Grades.txt file I have the first number is 4. When the program runs it reads the...

[2 replies] Last: Here is updated main and it works great. The only thing is I need to a... (by Aneiron)

by PoorBoiz

How can I change the value that already input to file?

This is my code. The purpose of this code is to top up money and withdraw money from an account (ass...

[10 replies] Last: Here is the link of documantation for fstream: http://www.cplusplus.c... (by coder777)

by closed account jEb91hU5

Remove comma when read in text file

Hi. I’m reposting on here because I’m having a bit of trouble understanding some help I was give...

[6 replies] Last: #include <iostream> #include <fstream> #include <sstream> using names... (by lastchance)

by CodingIsHard17

Data structures help (1,2)

Hello. So this code isn't working. I have to create a program that: - define class cust(I already d...

[28 replies] Last: Your linker error tells you that you haven't defined one function Th... (by deleted account xyzzy)

by CrosisBH

How do I "update" a reference in this situation?

I'm working on a small game engine in C++. I added a system where you can add components (made from ...

[4 replies] Last: by the way class Parent : Component it's composition, `Parent' has ... (by ne555)

by CodingIsHard17

Collect 2 [Error] Id returned 1 exit status

#include <iostream> #include <string> #include <fstream> #include <iomanip> using namespace s...

[6 replies] Last: @JLBorges Thank you. I will next time. I have to get a new computer to... (by CodingIsHard17)

by jp22

Validation so that the program only allows entry of numbers

Hi, could someone help me with my program. I have my program that is from a restaurant where you hav...

[1 reply] : Duplicate of: http://www.cplusplus.com/forum/beginner/262220/ -Albatr... (by Albatross)

by closed account y3hk216C

Creating objects using data from text file. (1,2)

Hello, I need help with solving a problem of mine. I have a text file with information separated by ...

[29 replies] Last: @salem c yeah and that's an ez to fix things just read the 1st user be... (by fewdiefie)

by PoorBoiz

Problems for calling function

I has problems for calling function CreateAccount() in this case int toppingmoney_, withdraw_; int...

[10 replies] Last: Perhaps open the file for appending, whenever you save a new account. ... (by salem c)

General C++ Programming - September 2019 (Page 4)

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