Beginners - C++ Forum - June 2012 (Page 33)

if there any difference between this two?

If there any difference in the answer if we place and external parenthensis? or 1 and 2 are the same? 1 - (bla > bla) && (bla < bla) 2 - ((bla > ...

[2 replies] Last: Not really, it was just to make sure about the syntax.. Thank your ... (by scout51)

by scout51

Operator "Not equal to"

Just to get this concept straight... The expresion !(x > 10), is equivalent to (x < 10) ? or the expresion means that, if !(x >10) , can be (X <= 10) ? ...

[4 replies] Last: Thank you for your help guys, it really helped a lot. (by scout51)

by uhh

Help with converting decimal to corresponding integer.

Hello. I am new to C++ and need a little bit of help. Question: Write a program that prompts the user to input a decimal number. The program should outp...

[12 replies] Last: What I showed you is how to convert an int to binary. I also told you ... (by ResidentBiscuit)

by Smyris

error reading sequential file values to an array

I've been tasked with making a log in program but I keep getting an error whenever I try to read in a value to an array. To be more specific I'm trying to read...

[2 replies] Last: Thanks! it works much better now (by Smyris)

by RandomStuff

How do I make CMD apps read letters individually on one line of text!

Please HELP, I'm making an app that takes random letters like, "K jcxg k ecv.", and translates them into words like, "I have a cat." Can anyone help me a...

[13 replies] Last: I tried that but it keeps saying 'encrypt': identifier not found (by RandomStuff)

by scout51

What is the value of sum? and why?

sum = 0 num = 10 if (num > 5) sum = sum + 10; else if (num = 10) sum = num = 15; sum = sum + num answers: a= 0 b= 20 c= 10 d= 25 ...

[6 replies] Last: Thanks guys for your help...and no...I wasn't in the middle of a test ... (by scout51)

by Ramzi89

Inheritance/Polymorphism

Hey i'm trying to figure out inheritance/polymorphism and i'm a bit confused Given the following code: class Item { public: void display(); protected: ...

[4 replies] Last: You have access to all three if you take advantage of polymorphism and... (by CJC0117)

by Leed86012000

Switch problem in C++

Hello. I wrote this program. #include <iostream> #include <stdio.h> #include <string> using std :: cout; using std :: endl; using namespace std; ...

[1 reply] : cout uses << cin uses >> Also, you do not need to declare: using std... (by Volatile Pulse)

by Windwhistles

operators

Hi, The error I am gettling is: no match for 'operator<<' in 'n2<<std::endl' //... int main() { Average n1(5); //holds a number Average ...

[1 reply] : std::ostream::operator << () doesn't know how to handle your Averag... (by closed account zb0S216C)

by Schmoopsiepoo

Help with my application's user defined configuration

I am currently writing code for my application's user defined configuration. The "WriteConfiguration()" function takes two arguments; The setting to be chang...

[12 replies] Last: I do know there is a difference between the release bins and the debug... (by Volatile Pulse)

by forestPeterson

error C2871: 'std': a namespace ... does not exist

error C2871: 'std' : a namespace with this name does not exist /* #include <cstdlib> //added http://forums.devx.com/showthread.php?t=152439 #include <stri...

[5 replies] Last: the errors gone, I moved #include "stdafx.h" to the top and closed VS ... (by forestPeterson)

by forestPeterson

error LNK1561

error LNK1561: entry point must be defined #include <iostream> #include <string> #include "genlib.h" #include "simpio.h" #include "set.h" #include ...

[2 replies] Last: that was it, fixed (by forestPeterson)

by Ramzi89

Overloaded +=

Say if i wanted to convert the following function to an overlaoded +=: void addvec(vector<int>& v1, vector<int>& v2) { if (v1.size() > v2.size()) v2.resiz...

[3 replies] Last: Might want to have a look at this line: v1.resize(v1.size()); And th... (by Athar)

by mrbiggles

Where can I find preprocessor directives?

I am working with some code that was designed to be used on Windows and Linux. There is a preprocessor condition that checks to see if the variable MYSQL_DATABA...

[3 replies] Last: No problem :) (by Torin)

by TheBeardedQuack

Moving bits to alter characters (1,2)

Right I've got this encryptor program but I've just thought of a much better encryption method (edficency and safety wise for the program), the down side is Im ...

[24 replies] Last: The problem with "encryption" is that you want to eventually reverse i... (by Texan40)

by LilKB

Getting some crazy output... can't figure out the reason.

So I'm working on a program for class, and everything compiles correctly, yet my output is not what it needs to be. The program is supposed to output a list of ...

[2 replies] Last: Thanks for the help, As we both thought, the file wasn't being opened.... (by LilKB)

by forestPeterson

error C2628: '<unnamed-tag>' followed by 'bool' is illegal (did you forget a ';'?)

I am rewriting a program that was originally written using a helper class called genlib.h - described here http://www.keithschwarz.com/cs106l/winter20072008/han...

[4 replies] Last: you are correct - I found a newer library on sourceforge (by forestPeterson)

by Raistlin121

Value is x10 for no reason

I recently made a tiny program to test a mathematical algorithm, but i'm getting some output I can't explain. I think I must have changed a setting or something...

[3 replies] Last: The new-line escape character constant is the more efficient choice si... (by closed account zb0S216C)

by atown282

I need some help. I cant figure this simple command out.

All i need to do is have my program end at any point by pressing CTRL-c and I can't figure it out can someone please help me

[3 replies] Last: its not closing it. i need code (by atown282)

by Ramzi89

cin

Am i correct in saying that you can only use cin when inputting from a key board. as in when you say: cin >> x; you are essentially calling the in...

[5 replies] Last: Ok thanks. (by Ramzi89)

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Beginners - June 2012 (Page 33)