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Beginners - June 2017 (Page 2)

I want to print out a report that report the total number of lines if the user enters "-r" as the first argument : I tried it this way but the program will...

[10 replies] Last: No, it returns a number less than, equal to, or greater than zero, de... (by lastchance)

by hoboCPP

Using "std::find" from the algorithm librairy for a list of struct?

Hi, I'm trying to write a method that returns true or false whether this element exists in my list. Basically, I have a list of a struct. struct Person { ...

[4 replies] Last: auto list= listPerson; I believe this makes a copy of the list. Tha... (by dhayden)

by cookiemnstr510

Question regarding assigning inputs to different data types

Hello all, This is my first post. I am taking an online summer beginning c++ course. We are using C++ programming from problem analysis to program design 7th...

[4 replies] Last: My mistake on 'a'. You are correct that it would read 47, '1' and 8 I... (by dhayden)

by closed account 1vf9z8AR

Output without coding display

How i can make a file to display the output of c++ coding done in codeblocks without displaying the coding. I would prefer the file to be cross platform. T...

[10 replies] Last: [quote=jonnin]you can write the output to a web page (which can be a f... (by Enoizat)

by ExSanity

Change file's name at runtime?

How would I change the name of the file executed at runtime? Pseudo code: run Do some things change name from notrunning.exe to running.exe do some mor...

[3 replies] Last: The following worked on Windows (rather to my horror). #include <cst... (by lastchance)

by Meden

Database as a storage option

This last spring I had taken a C++ course at a local community college. It was a one day per week arrangement, so by the time that day came I always had a load...

[2 replies] Last: It is possible. It depends what database server you want to use. Norma... (by TwilightSpectre)

by keh k lenge

Object behaviours

Lets say in the code below I create an instance of X called obj and then store something and then return it. Will this obj get destroyed after being passed? ...

[1 reply] : I'll assume you mean something like: struct X { int val; }; X... (by TwilightSpectre)

by ivar5000

How do I build a data structure with objects as member variables?

I recently started research that involved coding in cpp which I'm completely new to, and am having trouble with a bunch of stuff: 1. Default constructors 2. C...

[3 replies] Last: I'm using the c_str() because I believe the constructor for ifstream... (by jlb)

by masterinex

how to pass 2 arguments into Command Argument

how do i pass in 2 arguments into the Command Arguments of Project Property ? can i write something as this: where the 2 arguments are seperated by a space ?...

[1 reply] : Have you tried using getopt_long? There's a good example here https://... (by ivar5000)

by alexelliott83

HW/Assignment Issue While Loop Misbehavin'

Hello, I have been asked to create the following output using a loop: How much do you want to save each month? 100 Month 1: $0 deposited 100 interest earned ...

[5 replies] Last: Let's look at the output and be clear about what's getting printed: - ... (by dhayden)

by christianwos

Unknown Operator

Hi everybody, I was looking at some code and I noticed the following line: for (auto ch : _params.ch) What does the ':' operator mean in this cas...

[3 replies] Last: Thank you to both of you! (by christianwos)

by masterinex

how to convert at txt file to html

i am trying to write a program that reads a txt file and converts it into html 1.0 file. The header html file should start with the following structure: ...

[3 replies] Last: Hello masterinex, I have a program that is similar to what you are tr... (by Handy Andy)

by EERD

Overload

Hi all. I have some questions and please help me, I have exam and i need answers. So I need to know what is a difference Between: 1) Function overloading, ...

[1 reply] : function overloading is have 2 versions of the same function. operato... (by jonnin)

by erixliechtenstein

Design questions - creating a command line interface and controlling privilege level

Hello, I am writing a console application which needs to print certain messages while performing calculations and have the ability to respond to some command-l...

[4 replies] Last: perfect, thanks a lot Thomas1965!, got it (by erixliechtenstein)

by closed account 1vf9z8AR

font color error

I am trying to change the baackground color and the font color in c++ but 'codeblocks' only reads the last system("color _ _") #include<iostream> #includ...

[10 replies] Last: Hello suyashsing234, Your welcome. Sometimes it is the little things... (by Handy Andy)

by rajhansk

what is type casting of classes and where is it used??

hi, can anybody tell me what is type casting of classes and where it is used? I googled it and I found a program on this website but I did not understand ...

[3 replies] Last: It's a const reference to an object of type A . (by MikeyBoy)

by closed account 1vf9z8AR

explaination of static in layman's language

I looked up everywhere but really can't understand how static works.Can you tell me its overview in layman's language. Not too much explaination just a little b...

[1 reply] : The static keyword has many uses in C++. static local variables If ... (by Peter87)

by closed account 1vf9z8AR

goto for an integer

How to do i use goto for an integer? when i use goto label; label: it works but when i use goto 0; 0: it doesnt work. I tried everything.:(

[5 replies] Last: > so what should i use instead of goto which is also as simple as goto... (by JLBorges)

by xari2

function void main()

#include<iostream> using namespace std; int i; void main() { i=10; cout<<"\n"<<"in main(), the value of i is:"<<i; f(); cout<<"\n"<<" back in main...

[2 replies] Last: see what tulu wrote and instead of void main() use int main() and befo... (by closed account 1vf9z8AR)

by darje

binary files

when i try to write binary in visual studio i write to text file .. and i cant see nothing even gebris i cant see. whice files i need to work with ..to read...

[2 replies] Last: you have to put a flag on the file open. fn.open(file, ios::binary); ... (by jonnin)

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