Beginners - C++ Forum

by david73

Initializing two-dimensional vector of type Class

Hello, I have one question. When I was using int as type of my vector I initialized it the way you ...

Jun 30, 2017 at 6:53pm

[1 reply] : # include <iostream> # include <vector> # include <iomanip> class V... (by gunnerfunner)

by Meden

Where is my mistake? Project Euler Problem 9 - algebra, <complex>, or something else?

From: https://projecteuler.net/problem=9 "A Pythagorean triplet is a set of three natural numbers, ...

Jun 30, 2017 at 6:35pm

[5 replies] Last: I should make a, b, c ints, or you may hit floating-point round-off er... (by lastchance)

by ebii

interhance

hey guys iam a bit stuck with some program that i try to solve #pragma once #include<iostream> ...

Jun 30, 2017 at 6:01pm

[3 replies] Last: You probably want runtime polymorphism : #include<iostream> #include... (by keskiverto)

by masterinex

weird for loop

Could someone explain to me how this for loop work ? i just don't understand the 2 extra condition...

Jun 30, 2017 at 5:38pm

[1 reply] : Those are not conditions; they are just assignments. The condition is ... (by Zhuge)

by lifeisgood

continue statement

Quick question: assume that I have the following structure, will the "continue" command successfully...

Jun 30, 2017 at 3:30pm

[7 replies] Last: @mbozzi: thank you for referring me to this article! As I am not a nat... (by lifeisgood)

by MoreUmph

Problem Linking Headers and Source File

Hello, im new to c++ and am trying to link a header and source file to my main source file. Its sim...

Jun 30, 2017 at 1:47pm

[14 replies] Last: > undefined reference to `WinMain' chose `Console Project' (by ne555)

by masterinex

how to iterate through char array

i have associated a pointer to a char array. I would like to print each element of the char array us...

Jul 1, 2017 at 10:11am

[11 replies] Last: asd (by masterinex)

by primem0ver

Where is the lib definition defined in a project?

Although I am not new to C++, linking has always been a bit confusing for me... so I suppose this ma...

Jun 30, 2017 at 11:31am

[1 reply] : Where is the STGPLUGINCLASSES_LIB symbol typically defined? Usually ... (by coder777)

by Bayan Khorshidi Berkeley

Can I code this better?

Few questions here, I thought I could use Nested else if statements here but I'm trying to go exactl...

Jun 30, 2017 at 12:02am

[1 reply] : struct substance{ double fusion_temp, ebullition_temp; std::string ... (by ne555)

by masterinex

how to declare a reference to a pointer

i would like to create a function which takes in a reference to a pointer.for some reason when i bui...

Jun 29, 2017 at 11:26pm

[1 reply] : The error you encountered is due to using namespace std; coming afte... (by lazpeng)

by Caruso

2d array

Hi All, This is from a problem published on heakerearth.com We need to create a 2 dimensional arra...

Jun 29, 2017 at 7:47pm

[1 reply] : this is all weird. if you want 10 columns, n = 10. you get to it fro... (by jonnin)

by AhmedEl3agamy

what are the benefits of using Copy initialization form ?

i know that when we use the copy form (=) the compiler will pass the right-hand operand to the cop...

Jun 29, 2017 at 12:50pm

[5 replies] Last: thanks keskiverto , gunnerfunner for replying. i just wanted to know i... (by AhmedEl3agamy)

by AJ Wants Your Pizza

Reading hexadecimal from file and converting to integers

So my assignment is to read an unknown amount of hexadecimal numbers from a file into a char array, ...

Jun 29, 2017 at 12:38pm

[9 replies] Last: The conversion and subsequent addition to a sum is where I'm having m... (by dhayden)

by masterinex

how to check if a command line argument ends with .txt

I am trying to write a program which checks if one of the command line argument entered ends with .t...

Jun 29, 2017 at 12:18pm

[7 replies] Last: The code will check for ".txt" in any command line argument, so long a... (by dhayden)

by Stauricus

i/o vector of strings to text file

hello i'm trying to write and read a vector of strings to/from a text file. it should count how man...

Jun 29, 2017 at 11:00am

[5 replies] Last: oh, now i see why the text file wasn't human readable. thanks everybod... (by Stauricus)

by waschbaer

How could I test whether the input parameter is uninitialized (1,2)

I have 4 arguments are integers, and for consistent reason, I want to test the input argument is ini...

Jun 29, 2017 at 10:44am

[20 replies] Last: @JLBorges What is your problem? If the functionality of optional mee... (by coder777)

by David5956

How do I merge text files in different sub-folders with path in it?

as tile~ so far, I did output a dir.txt that listed all the targets with this CMD code: D:\>di...

Jun 29, 2017 at 5:11am

[1 reply] : std::filesystem::recursive_directory_iterator (C++17) http://en.cppref... (by JLBorges)

by Flaze07

syntax question

hey, so there's 2 ways to declare a variable of class first : mystring ex("lol"); second : myst...

Jun 29, 2017 at 4:22am

[3 replies] Last: One thing to keep in mind is that they are not always equivalent: The ... (by mbozzi)

by david73

Moving in two dimensional vector

Hello, I'm having one problem. Imagine you are having two dimensional vector in which you want mov...

Jun 28, 2017 at 6:13pm

[9 replies] Last: Just in case someone would struggle with the similar problem in the fu... (by david73)

by ebii

handling with files

hey guys how i read from files only int/or some char data let say i have list of student name + gra...

Jun 28, 2017 at 6:12pm

[5 replies] Last: thanks alot thomas . (by ebii)

Beginners - June 2017

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