Beginners - C++ Forum - April 2010 (Page 19)

Hi All, Please suggest the best way to build an adjacency matrix from given nodes and links. my input wil be as shown 3 2 n1 n2 3 n3 n1 2 The first ro...

[1 reply] : hey can anyone please reply (by cplusanil)

by Astrumjunior

Ways to make change 2.

The Question: Tell the number of possible ways you could have made change, if the amount is $10.00 or less. What I've done: #include <iostream> using...

[3 replies] Last: I started working with C++ recently, so this is what I came up with. O... (by Astrumjunior)

by maysmech

Problem (Access violation (Segmentation Fault))

Hello My Code leads to Error: Access violation (Segmentation Fault) it is a heat transfer problem which calculate temperature of a canal. #include <iost...

[11 replies] Last: Not going to lie. Why don't you use a debugger so you can find the exa... (by closed account S6k9GNh0)

by tarheelfan08

Writing to a DATA FILE

Can someone tell me why my code is not writing to a data file! I get no errors and everything looks great! #include "Account.h" #include <iostream> #i...

[11 replies] Last: Steps on writing to a file: 1) Open the file with correct mode: h... (by closed account S6k9GNh0)

by DeadH34d

Problem with my loop?

Hello everyone. I'm making a small dice rolling game. It's very basic, all text. The problem I'm having with the program right now is: The program doesn't end w...

[8 replies] Last: Sorry to double post(can I call bump?) but, could my problem be that I... (by DeadH34d)

by Crippy

Some kind of mistake?

hello! I built a class, compiled it with no problems but windows dos wonn't let me execute the program, it interrupts it... Am I allocating memory incorrect...

[1 reply] : *what = 0 and *what = *str do not do what you want. They cop... (by jsmith)

by gaggerzon

2Questions

I have two Questions 1. I read the topic "Console Closing Down" and people are posting many different ways to end a program. I use Dev-C++ ...

[4 replies] Last: They are BBcode tags used in this forum http://www.cplusplus.com/arti... (by Bazzy)

by chinookcrew

windows forms

I'm developing a series of forms using visual studio c++ and i have a series of text boxes that the user will insert measurements into and after they have inser...

[no replies]

by flubber

[C++} Using isalpha and isdigit to verify string

Hi All, Sorry can anyone advice how can i use isalpha and isdigit to verify if the string is having alphanumeric? I am struggling for 4 hrs on google sear...

[9 replies] Last: Thank you guys. I managed to solve my questions after sleepless night ... (by flubber)

by dokfiler

.lib files creation

Why the files .lib sometimes are created only after I run the project? For example I go into lib folder and got nothing. But after some files appear lib.

[2 replies] Last: Thx Bazzy. I'm telling this because in my Ogre3D project sometimes the... (by dokfiler)

by patsies62

error C2248: cannot access private member declared in class

Ok So i have a program that takes input from a file and tells whether the number is even or odd. Im getting this error in my code though and am confused as to w...

[2 replies] Last: Pass the ifstream object as reference instead of value, i.e. modify ... (by Castaway)

by thewonderdude

cannot add sys/time.h

Hi, i want to measure the time it takes for a sort. #include <sys/time.h> does not work. It says couldn't open source file. Thank you Yigit

[4 replies] Last: http://www.cplusplus.com/reference/clibrary/ctime/clock/ (by Bazzy)

by engguy

DOS program in win

Hello, How do I run a dos program in windows? Your help is appreciate.

[1 reply] : IIRC not all the old interrupts are available to the programmer... ... (by Duthomhas)

by mythbusterma

Null error

im trying to make a text based game and i need alot of strings to make it of course but whenever i run it i get this error: terminate called after throwing an...

[1 reply] : It seems that you are trying to create string using char* that points ... (by Denis)

by ToniAz

Class member functions

Hello everyone Can we create a function that is defined as a member of a class (lets say class point) and of type "point" and that takes 2 parameters both of...

[8 replies] Last: Why don't you try calling in main this: point m = a.midpt(a,b); ... (by m4ster r0shi)

by piquick

Dividing String into substrings

Hello, i need to divide 1 AnsiString like "s0 s1 s2" into some substrings like "s0","s1","s2", but i have problem with it. Advice me how to do it,please.

[1 reply] : Maybe you can try to modify this program to yours. #include <stdio.... (by qudongfang)

by AlwaysLearning

Question about namespaces

I had thought that if I used a 'using namespace' that I could define functions in a namespace without having to prepend that namespace. I know that's how it wo...

[1 reply] : No, using namespace only lets you use symbols in that namespace while ... (by helios)

by ToniAz

Class member functions [code]

I tried posting the code over and over again in the last post but it didnt work... #include <iostream> using namespace std; class point { publ...

[1 reply] : On line 23 point m = midpt(a,b); This is a member function, ... (by xeyide)

by axel

bad precision when dividing doubles

Hi, i'm making histograms by dividing my range in a given number of bins and i've stumbled upon a problem that if it has no explanation, then i think is VERY ba...

[2 replies] Last: Thanks for the reply and the article refered above. I am aware that th... (by axel)

by dan1973

g++ / visual studio c++ problem...

Hi, use g++ at home on Linux and visual Studio c++ at work. Am working on 'dungeon crawl' exercise trying to get the 'player' to move using the number keypad. H...

[no replies]

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Beginners - April 2010 (Page 19)