Beginners - C++ Forum - May 2012 (Page 9)

by breadbread1984

problem about reference to vector element

I met a problem when doing my project. I abstract the problem to the following code. #include <ios...

[1 reply] : ublas::matrix<double> & n = m.back(); m.push_back(ublas::matrix<doubl... (by JLBorges)

by JCaselles

Question arising in a writing-Wav function

Hi fellows, Quick question: I've got this function example to write a .wav file. After spending som...

[2 replies] Last: aha! Well, what I think I understood is that '& 0xff' makes the assig... (by JCaselles)

by solo2wolf

can't use the "pow" function?

For some reason when I call cout<<pow (2,some_variable_defined_by_user)); I get the followin...

[2 replies] Last: The pow() function takes a double, float or an int as the exponent, an... (by BlackSheep)

by Konichua

expected unqualified-id before do?

// c++ quiz for beginners #include <stdio.h> #include <stdlib.h> #include <time.h> #include <io...

[1 reply] : @Line 21: Why do you have a curly bracket there? -Albatross (by Albatross)

by solo2wolf

String to int conversion

The following code is supposed to read in a line from a.txt file and identify two integers separated...

[3 replies] Last: You're missing some hex es in your program. If your program doesn't k... (by Albatross)

by RaptorX

little confusion with srand, rand and time functions

Hi, I am just starting out with c++ and while trying to do a little exercise about flipping a co...

[5 replies] Last: iostream is generally included because you need to include it to use s... (by firedraco)

by jwjohnwright

Char Pointer troubles

This is a really stupid question.. I know.. but I've forgotten how to do this exactly. char *pt...

[4 replies] Last: Thank you! I thought that might be the case.. been so long since I nee... (by jwjohnwright)

by zarkon123

Questions about structures and arrays

Basically I have to load the entire file into the memory, using a dynamically allocated array. The f...

[12 replies] Last: Ok, I found it out. Now a problem I am going to face many times is : h... (by zarkon123)

by John McFarland

Why won't arr as a variable work?

So for some reason whenever I try to compile this an error message shows near arr on line 72. I coul...

[5 replies] Last: Thanks guys, this actually helped a lot. Though now I'm curious, (not ... (by John McFarland)

by Grax

GUI in DevC++?

i'm currently using devc++ for coding, and i wonder is there any GUI function in DevC++ just like vi...

[1 reply] : wxDev-C++ (a fork) has a GUI editor for wxWidgets. I'm not sure if Blo... (by Albatross)

by NoobLess

Grading Program

/************************** Basic input/output Basic training Grading Program By NoobLess ****...

[2 replies] Last: WOW How in the world did I not see that. Thank you anyway whitennite1 (by NoobLess)

by Konichua

Random number generator always generates 42?

Help! Here is my code: // // Danny's dice simulator // Change the sides of the dice to get //...

[6 replies] Last: Thank-you. I have implemented both of your fixes and have fixed the pr... (by Konichua)

by Chew951

Random String Array Problems

Hello. I'm sorry if this question has been asked before, but I can't find any topic, that has the sa...

[18 replies] Last: Thank you. Thanks everybody for helping me out :) (by Chew951)

by solo2wolf

How to read formatted data

I want to read an number of integers from a .txt file. The file is composed of three columns of numb...

[11 replies] Last: Thanks! N (by closed account o3hC5Di1)

by kail2012

Simple input/output issue.

Hi guys, I am trying to write simple question and get answer on it , but how i will identify answer...

[2 replies] Last: I'd have to agree with NwN's idea. The easiest way to do this would be... (by atropos)

by Grax

problem in read data from txt file

i have try to read data from txt file and store it in my link list here's my read file function ...

[4 replies] Last: thx ^.^ (by Grax)

by Sub

I'm trying to make Conway's Game of Life and I'm quite frankly stumped

This might be asking entirely too much, and if it is I'll go back to trying to fix it on my own, but...

[1 reply] : I suggest you to detach your interface. Your rule2 is incorrect //An... (by ne555)

by eiger3970

InterfaceFileForASetTemplateClass

Hi cplusplus.com forum people, I've typed up this code direct from the text book, Absolute C++ Four...

[1 reply] : Hi there, void insert(Node<T>* afterMe, const T& theData) 12 That... (by closed account o3hC5Di1)

by tamtam2012

C problem with matrix

Hi. I know that site is dedicated C++ programming, but i have some misunderstanding with a c proble...

[2 replies] Last: Your task can be simply done with using standard algorithm std::rotat... (by vlad from moscow)

by BigSmoke

Where is the error?

Hi, Im a total beginner in c++, I tried to convert 20 fahrenheit to celsius in a console, but i a...

[4 replies] Last: Not sure. I only try using debug if I have a big problem, otherwise I ... (by whitenite1)

Beginners - May 2012 (Page 9)

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