Beginners - C++ Forum - April 2011 (Page 47)

Transform a boost::variant into its former type

If I have a variant variable such as boost::variant<int, float, double, string> var and I give to it a value...lets' suppose an int: var = 1; Of...

[2 replies] Last: Yeah, it was not so difficult: int a = boost::get<int>(var) Thanks... (by caneta)

by daveofva

Divisor Help

I have to write a program for a class that reads an unknown number of positive integers and for each number, uses a nested counter-controlled while loop to prin...

[3 replies] Last: Analyze the algorithm of finding the divisors of one number (n) first.... (by hamsterman)

by Maese909

Outputting digits of an integer separetely.

Hi, the program I am working on in my spare time is supposed to take as an integer a number and output the digits of the number separately as well as the sum of...

[2 replies] Last: You can't directly type cast an integer to a char as the ASCII code ... (by lnk2019)

by Miseria

Recording the Backspace Character

Hello, I have a quick question about recording a backspace character in an opened file. Now I have searched for a couple of hours and figured out that in order...

[4 replies] Last: Ahh ok I understand that sot he temporary file idea is a bust. So my ... (by Miseria)

by Richard101

Try/Catch function

Can anybody explain to me what this is, and how it works in a simple way?

[5 replies] Last: #include <iostream> using namespace std; bool isPrime(int n) ... (by Mathhead200)

by flclempire

What to study next?

Hiya. I've recently finished reading "C++ Primer 5th Edition", by Stephen Prata. I feel that it's given me a good grasp of the language, but I still feel very...

[8 replies] Last: The STL contains a wealth of capabilities that you may not have been f... (by Alrededor)

by moonslice

sort array

I am trying to sort in ascending order but can't seem to make this work. #include <iostream> #include <fstream> using namespace std; int main ( ) { ...

[3 replies] Last: I go cross-eyed trying to read your code. Please use from now on.... (by ciphermagi)

by closed account S2ECpfjN

Sumandcomputeavg

I'm trying to understand how to do a void sumandcompute. The project i'm working on wants me to do... outer for loop walks through number of employees in...

[no replies]

by snakec

c++ XML file parsing problem

hi everybody i want to parse an XML file with xerces Dom parser but could not succeed here is code for my xml file which i have to change <?xml version="1.0"?...

[no replies]

by akakeighan

help a beginner please.

hi, so for a class im taking in c++ I have to program an application that will let you select your medication and then after you select it you can tell how many...

[6 replies] Last: vector<coder*> me; vector<coder*>::iterator it; vector *temp = new ... (by ciphermagi)

by linkj7

Comparing Arrays

I guess this has somehow slipped right by me but I cannot seem to figure out at all why when I compare these two arrays like so, it doesn't work: #include <i...

[6 replies] Last: Use std::string and operator==. For char arrays, use std::equal. http... (by Athar)

by Dinorah

URGENTTT HELP IN C++ ERROR: too many characters in character constant

I have a question, I need to know if it is possible to do a switch case using a string What I did is the following: string *item_name = x.substr(i,x.size()-1...

[1 reply] : You can only use switch with integral types, so that won't work. And s... (by Athar)

by Patriots12

Console Application doesn't do anything

Hello, I recently bought the C++ for dummies 2009 edition, and it came with Code::blocks to write the code. However, whenever I make a program and try to run it...

[4 replies] Last: edited (by Patriots12)

by nekoxandu

Utilizing Different Areas of an Array

in this program you can use an input file that has a record of a bird watching event to do a few calculations with the program. its a project for school, and i ...

[8 replies] Last: how do i predefine the parameters of a function using a struct? let'... (by matsom)

by marlym014

help with pointers

Hi I a function that splits an array of chars into tokens and then converts each token into a float number, the code is the following: float* splitContent(c...

[1 reply] : [co de] "Please use code tags" [/co de] The return value of your f... (by ne555)

by TpOreilly

Can you please suggest me a good book?

Hi, I'm looking for a book which teachs you c++ applications (NOT console applications). I've tried a game programming book but it's a little too advanced...

[7 replies] Last: I've also heard good things about GTK+. All three of these libraries ... (by jlamothe)

by Soap360

Need help, function to read values from a text file!!!!!?!

The function needs to read in values from a text file. The file should be named something like character_data.dat or whatever the file extension should be .dat ...

[no replies]

by detroit

Quick question for experts....

Hello everyone, thanks for taking on this topic. I have a read file ("exampleIn.txt") and i get the input from there and after the program runs i print in a...

[5 replies] Last: I am confused, a litle advise or example maybe. I would apreciate i... (by detroit)

by cainen172

2D arrays

hey everyone!!! i want to know how to display a 2D array. all it has is a bunch of #s, letters, and symbols. #include <iostream> using std::cout; usin...

[8 replies] Last: thanx yall it works great (by cainen172)

by Brianzor

Having trouble looping with getline()

I'm having a problem while trying to loop with the getline function. The program compiles but after being prompted for number of repetitions, it displays: Na...

[15 replies] Last: My problem to begin with was when trying to input the name, getline wo... (by Brianzor)

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Beginners - April 2011 (Page 47)