Beginners - C++ Forum - June 2015 (Page 11)

What code to use to check string if any number are in there, if it is then return error.

[3 replies] Last: Or combine http://www.cplusplus.com/reference/algorithm/any_of/ and ht... (by keskiverto)

Hi! Let's say I have a class that does not have a constructor. Does the compiler creates a default constructor that initialises my variables to 0 or just an emp...

[1 reply] : In short: it is safer to assume that compiler generated constructor do... (by MiiNiPaa)

by strling

tgamma function

Hello!I'm trying to use the tgamma function to solve this problem : https://www.hackerearth.com/may-easy-challenge-15/algorithm/panda-and-chain-reaction/. But I...

[no replies]

by Doge1

Is there any way i could make this code simple as possible.

I need tit to be beginner friendly if anyone can help to make this simplistic as possible. #include <iostream> #include <string> #include <vector> us...

[5 replies] Last: You're right, sorry. (by TheHardew)

by Umahoin

I need help with a function returning the correct values

So I have an issue getting this function to work in my program for a summer course for C++. We are to create a program where a user orders food and we retur...

[2 replies] Last: THANK YOU SO MUCH I knew it was a super small fix that I was overlooki... (by Umahoin)

by ttu

Tricky increment example

Hi guys, I stumbled upon a tricky increment example recently. Here it is: int a, i = 0; a = ++i + ++i + ++i; Why on earth the a variable ret...

[6 replies] Last: [quote=2011 Standard] 5.17 / 1 [ expr.ass ] In all cases, the ass... (by MiiNiPaa)

by darkninja

calculator need help

trying to make a calculator just started learning c++ wats wrong with my code when i remove 3 functions it works but not with all of them there. help pls ...

[8 replies] Last: Could you please code tag the final version of your code. So any noob ... (by andywestken)

by eiffel79

Switch Statements - Output Help!

Hello - This is my first post (I'm a total beginner!) but need some help. I've been working on an assignment to take a user's input string and output the corres...

[4 replies] Last: Perfect! Thank you so much! That worked. (by eiffel79)

by omurad

Modulo issue

if (arrayLength % 2 == 0) //ERROR: invalid operands of types ‘double’ and ‘int’ to binary ‘operator%’ The type of "arrayLength" is a double and...

[2 replies] Last: Makes sense... Good thing I posted this in the beginner category lol. ... (by omurad)

by nffarah

Read .txt file

Hi, i need some help in the following program: I have to read from a .txt file, that contains integers and then cout the most occurred number with the number o...

[2 replies] Last: How large are your integers ? If the numbers are small, like 1 - 20 t... (by SamuelAdams)

by bheadmaster

Static object member of the same class

Why is this code legal in C++? class myClass { public: int someInt; static myClass subObject; // infinite loop? }; Wouldn't it cause an inf...

[2 replies] Last: Ah. It's all clear now. Thank you :) (by bheadmaster)

by jhykima

Initializing an Array of Strings

I am trying to write a simpler code to initialize my string array instead of having to enumerate everything as I have done in my code. Is there a more efficient...

[7 replies] Last: @MiiNiPaa Awesome. Thank you so much for the response!!! I understand... (by jhykima)

by GreenTea1984

Question about cout << endl statements

How come in these line of code the endl code precedes the << string ;? Meaning why did the author of my textbook structured the statement cout << endl << strin...

[6 replies] Last: Side note: endl is really overused. Just output a "\n" in the right ... (by Duthomhas)

by CodeWriter

Code::Blocks build fails

Learning C++ although I did some self taught hobby C programming a long time ago. First I started up Code::Blocks and chose "create a new project". In the N...

[3 replies] Last: If your tutorial recommend fstream.h, it likely is, as that isn't even... (by Zhuge)

by kartik17

problem with objects and classes

i have written down this program in codeblocks (gnu c++ compiler) using the concept of classes and objects but when i compile it it should return 12 but when ...

[2 replies] Last: thanks very much newbiee999 (by kartik17)

by WeiKeWen

Memorization Program

I am trying to make a program that takes file input from something in Latin "EcceGratum.txt" and then prompts the user for English (in this case), comparing it ...

[3 replies] Last: To solve the max() problem add #include <algorithm> It must have b... (by andywestken)

by taserman21

Tons of Errors, Please Help.

What is Ostream Operator? #include <iostream> #include <ostream> #include <unistd.h> using namespace std; long double firstVariable(0); long double seco...

[3 replies] Last: Line 37: what is logically wrong with cin << endl ; Line 13: Do you ... (by keskiverto)

by Nedim1

Output of a vector, why doesn't this work?

Why doesn't this code work? #include <iostream> #include <vector> using namespace std; int main() { vector<int> prime={1, 2, 3, 4, 5, 6, 7, 8, ...

[1 reply] : i <= prime.size() should be i < prime.size() That is, you're pr... (by andywestken)

by RadWayne

Funky string concatenation

Some weird stuff is happening when I try and concatenate strings and chars. For example, this is inside of a static member function: int id = 0; char cid...

[1 reply] : operator+, operator-, etc are evaluated left to right. So subterm cid... (by andywestken)

by football52

Classes questions

Alright so I don't know if there is a better way to go about this but I'm somewhat doing it like how we had to do in an assignment during the previous semester....

[1 reply] : Line 41. This is not how to express what you want. What you should sa... (by booradley60)

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Beginners - June 2015 (Page 11)