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Beginners - August 2015 (Page 20)

Get total number of elements in queue

I wish to know how we get the total elements in the queue?

[2 replies] Last: LB thank you very much. (by AVM8)

Greetings! I am nearly finished with a program that I am writing for a class, and can't for the life of me figure out why the output of this function isn't dis...

[7 replies] Last: count1 /= count1; This sets count1 to 1 instead of 0, so of course... (by LB)

by ChajusSaib

std::hexfloat and std::defaultfloat not found

How come std::hexfloat and std::defaultfloat cannot be found. I get the error that no member can be found with both clang and g++. My g++ is on version 4.9.2 an...

[4 replies] Last: @JLBorges Cheers for the reply buddy. I will update both clang and g+... (by ChajusSaib)

by ReaverZail

Having some trouble

I am pretty new to C++, and I am having some trouble with a simple program. I've been working on it for a while but cant get the loop to work right. Basically n...

[7 replies] Last: Thank you guys for the help. I got it to work! lol. An yeah CodeWrite... (by ReaverZail)

by fguy

Brain cramp

Something like this should be dead simple. I can't believe it's not working. Here is my code... #include <iostream> #include <vector> #include <string> ...

[3 replies] Last: lol thanks (by fguy)

by axxotador

invalid operands to binary expression ('int' and 'string'

when i run my program I get the following errors: "invalid operands to binary expression ('int' and 'string')" and "no viable conversion from 'int' to 'string'...

[4 replies] Last: ok (by axxotador)

by fullchaos13

Trouble with _TCHAR and using _tcslen

Hey guys, I recently started reading the book Programming Windows Fifth Edition by Charles Petzold and I came about a roadblock. The book mentions a _TCHAR ...

[6 replies] Last: @JLBorges Thanks a lot mate! Including <tchar.h> made the program run.... (by fullchaos13)

by ygkuan

Numbers containing digit 1,2 and 3

Can someone give me a hint on how to write the code to find out whether number 0000 to 9999 entered contain digit 1, 2 or 3? I know doing % 3 is wrong cout <...

[4 replies] Last: And now for some fun mathematical reading: http://www.cut-the-knot.org... (by Duthomhas)

by fumbles22

Program isn't working with big numbers (or maybe small) + floating point exception?

Hello, I've been messing around with a binomial probability program. I've been learning A-level stats (S1), but the book I have doesn't have a statistical t...

[7 replies] Last: [quote=fumbles22]I'll dabble in J after I get reacquainted with C++. A... (by kevinkjt2000)

by fguy

nested range-for loops and arrays of arrays

Greetings My goal is to use range for loops to print out a two-dimensional array. My problem is I don't know how to specify the type of the loop control vari...

[4 replies] Last: ok that works, thanks. (by fguy)

by KMagic

[SDL2] - Where is the error text displayed?

I am new to SDL2. In the examples that I found on the internet, the code to check whether there is error when initializing something look like this: if (!...

[2 replies] Last: Does SDL 2 on Windows redirect all output to files named stdout.txt an... (by Peter87)

by newguyhere

Question about string

So i was trying to print hello world on screen using oop Here is my header virtual void Hello(std::string str); and here is the definition void Base::H...

[6 replies] Last: If pre-compiled headers are being used, turn them off: Project => Prop... (by JLBorges)

by DBBJAF

using a class (MFC) in Console application

hello how i can use a exiting class that include header file and cpp and just use it the orginal code was here :http://www.codeproject.com/Articles/319181/Hae...

[1 reply] : i asked my question from author and he said me that it can use it, be ... (by DBBJAF)

by YowHow

Unknown Override specifier. Noob question

Im quite confuse on headers Say for example I have this base class class BaseClass { public: virtual void Load(std::string msg); }; And a derive...

[6 replies] Last: I see. so thats why. its weird though, I thought that pragma once w... (by YowHow)

by YowHow

Im still confuse at Rvalue and Lvalue

SO LValue is the one to be assigned and RValue is the one containing it? Is that right?

[3 replies] Last: I see.. Thanks guys. I think I get it somehow. (by YowHow)

by UCLA

Including 2 classes in headers

I want to turn this single .cpp file into multiple ones but I'm having trouble doing so. I'm getting undeclared identifier and 'children' : is not a member of '...

[6 replies] Last: Note that you use Node inside class Trie, so near the top of trie.h, y... (by dhayden)

by teed999

Editing element of a parallel array

I am working on a program which (in part) reads input through a function get_data(string , int , int&) then outputs the data in the correct format. The data is...

[8 replies] Last: Oh, I get it. "waSHiNGtOn,geOrGe, 8" is all one string. void to_tit... (by Duthomhas)

by neville1967

user input validation

My program is a ATM C++ program. I am using gedit in ubuntu to create the program. I have a txt file with pin,cardNumber,balance. The data is all numbers sep...

[4 replies] Last: fumbles22, To test a program just make up the data or write a program... (by CodeWriter)

by helios103

Pointers and array problem.

So I'm experimenting with pointers and arrays trying to get the feel of using and understanding them more. The *ptArray value in my source seems to change and n...

[2 replies] Last: A visualization of what happens when you increment a pointer: myarray:... (by MiiNiPaa)

by fumbles22

Segmentation fault?

Hello, I'm trying to write a C++ binomial stats program. For example, let's say I had a box of 3 lightbulbs. There is a 0.25 chance that a lightbulb is bro...

[2 replies] Last: Thanks! I'll have to remember that a segmentation fault is a memory p... (by fumbles22)

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