Beginners - C++ Forum - March 2009 (Page 22)

When the user select chocolate for icecreamFlavor, since it is among the same possible values for sauceFlavor, the program assigns it to both. If no icecreamFla...

[11 replies] Last: Hi Bazzy thank you for the hint... I changed my code and the program ... (by andrewt)

by token

Comparing Strings [example]

#include <iostream> #include <string> using namespace std; int main() { string firststring; string secondstring; cout<<"Enter first string:"; ci...

[1 reply] : Your question is? Btw: You can also use == for string comparisons. (by eker676)

by Hazer

Copying binary files

Hi everyone! I have a little problem. Code: #include <stdio.h> #include <iostream> using namespace std; int main() { FILE *in, *out; in=fopen("C:\\inp...

[2 replies] Last: Thanks. I used feof() and EOF before but I thought they are epual. (by Hazer)

by user name

Default parameters in a function

Hi, I just wondered whether you should define the default parameter in the function prototype or the actual function declaration: int foo(int bar = 0 ...

[7 replies] Last: OK, thanks. (by user name)

by Azrad

easy way to remove unwanted characters from a string?

I want to remove every character from a string except for a certain list of characters. I'm sure this could be done by storing the list of "allowed" characters ...

[2 replies] Last: For a general solution, I'd go with // remove_matches: removes ... (by jsmith)

by PickleMan

Returning a char* array?

I am new here. I was creating a program, and I needed to return a char* array from this: http://www.codeproject.com/KB/cpp/IniReader.aspx I am using the c...

[2 replies] Last: Oh Thanks. I started C++ programming a while ago, and I just started t... (by PickleMan)

by Prissy

some questions about reference and array

Q1: EG: int array ; Can I use: int &reference = array; and then sth = reference ? Q2: if I wanna to creat a flexible array in a class...

[1 reply] : Q1: you can do this: int array ; int (&reference) = array; sth... (by Bazzy)

by zeroriku

ASCII and special key miss function?

During my exercise: i found that my ASCII code output is ? or strange chinese word after 130(base of 10).till 255. Besides,my special key only shows on F1 to ...

[2 replies] Last: how are you reading them? as a char? Try using unsigned int. char onl... (by grcunning)

by shoubie

Determining the roots of a cubic polynomial using N-R method

Hello! Can anyone explain to me how to use the Newton-Raphson method to get the roots of a cubic polynomial by using functions? It would be greatly appreciated ...

[5 replies] Last: Okay, now I have this: #include <iostream> #include <cmath> using ... (by shoubie)

by Extremity

"Understanding the context" of my assignment

I am rather confused on interpreting this assignment. I am supposed to read "10 strings from cin, store it in a vector in a sorted order". The program has to "u...

[1 reply] : Repeat 10 times: Read one string. Use a binary search on the... (by jsmith)

by Fallen03

Trying to save to file using switch case

I'm trying to get someone to pick from a list of classes, and have that class saved to a file, but I can't get it to work with more then one case. I keep gettin...

[3 replies] Last: YES! Thank you so much. I missed that entirely. Thanks a lot! (by Fallen03)

by webmaster 2

Screen Options

Greetings everyone! Can anyone provide me with some tips on how to make the current view for instance return to the main view without having one screen for t...

[1 reply] : Specifically how to do this can vary depending on what platform you're... (by Disch)

by Zachary

changing numbers in an array

(that's not the best title...sorry about that!) I have an array with the numbers 1,2,3,2. I want to swap each integer with its mod12 complement (1 swaps wit...

[9 replies] Last: A template is used for a function or a class so it can be more generic... (by Bazzy)

by silverarrow

decompress data from file

I have stored some data in a file.txt which is hello ho3w2 are you. How can I open this file in c compiler and save the data into a new file (file2.txt) as hel...

[1 reply] : I think I already gave you the code for compression? Yes? You just h... (by kevinchkin)

by Anmol Sharma

definitions of Arrays, Functions, String and Matrix

Hey ALl. I have an exam tomorrow . I just want the definitions of the given with a nice example. Please HElp

[1 reply] : Try the tutorials http://www.cplusplus.com/doc/tutorial/arrays.html ... (by Bazzy)

by masiht

call of reference and call by value question

Hello,I am studying call by reference and call by value.I have studied the tutorial here .I have been experimenting with functions.I will be thankful if someone...

[2 replies] Last: thank you ! I am going to play with more programs like these. (by masiht)

by silverarrow

float output and percentages

Code: float a=15, b=6,x; x=a/b; printf("%f %", x); I want to print 2.500 %(percent) on the screen as output. How can i print x to only 3 decimal places (3...

[1 reply] : Try this: printf("%0.3f %%", x); if you can use C++ you can use thi... (by Bazzy)

by Urfriend

Please Give ATTENTION...

Anyone can help me solve me these programming projects? I don't know how to do it.. Can someone give me a code? I really appreciate if you will help me.. Th...

[1 reply] : Do your own homework. People here don't mind helping if you get stuck... (by Disch)

by DavidRead

Syntax of new

If 'Test' is an ordinary class, is there any difference between: Test test* = new Test; and Test test* = new Test();

[3 replies] Last: Well spotted, I missed that! (by kbw)

by lizzygarcia02

derived classes - accessing private members

This is a review for a test. I have attempted numerous things and maybe I've just been trying too long and need a rest haha but this is the problem and what I h...

[2 replies] Last: Thanks so much.. I haven't had any sleep and I don't know how I could ... (by lizzygarcia02)

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Beginners - March 2009 (Page 22)