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Beginners - May 2010 (Page 28)

by acimmarusti
[Solved] opening file using a stringstream as path?
 
Hi all, I have a basic knowledge of C/C++ that has quickly failed me. In the program below (which is a piece of a larger one that I'm rewriting to C++ from ...
[5 replies] Last: Thanks again, I changed completely how I get user input so that it is ... (by acimmarusti)
by takerman
Problem with inputing the char type
 
When i have two chars to input, the first char is exepted. Example: #include <iostream> #include <string> using namespace std; struct text { char...
[no replies]
by agajantorayev
Reading from txt file and putting into array
 
I am trying to read some data from txt file and put it into char array: char letter ; char c; ifstream infile("waldorf.txt"); if(infile.is_open()){ ...
[3 replies] Last: Thanks very much popasquat; but there is another rpoblem: what do I n... (by agajantorayev)
by Esmaeil
Problem with this file (1,2)
 
HI. I wrote these codes to add, search and delete student information. It works but with some problems: First of all this program shows some number (RAM numbers...
[22 replies] Last: If I understand correctly the problem is that when you delete an entry... (by m4ster r0shi)
by cyker
How to define mutual friend functions?
 
I know how to define mutual friend classes. But I really wonder how to apply that to functions. Since you have to let class A see the definition(not declaration...
[1 reply] : Functions can be friends of classes (is this what you want) Functio... (by guestgulkan)
by cyker
copy constructor not called during initialization
 
//Class.h #include <iostream> using namespace std; class Class { public: Class(int k) { cout << "cons" << endl; }; Class(const Class& c) ...
[1 reply] : After all, it should call cons first on 3 to create a temp object and... (by Disch)
by newfagsDONTtriforce
problem with opertaions with numbers
 
im trying to find a way to add 2 numbers to gether . ANY way?? #include <iostream> using namespace std; int main () { double num1; double num2; c...
[4 replies] Last: Multiplying numbers is done the same way, using the * operator. Get... (by closed account Lv0f92yv)
by tidbit
Median function
 
#include <iostream> #include <iomanip> #include <fstream> #include <string> #include <vector> #include <stdio.h> #include <stdlib.h> #include <math.h>...
[1 reply] : http://en.wikipedia.org/wiki/Bubble_sort -Albatross (by Albatross)
by Dangerzone812
I/O File streams in C++ HW...
 
I need to write a program that: Using a text editor (i.e. Notepad), create a text file called Text1.txt and place it into the root directory C:/. Fill Text1...
[4 replies] Last: http://www.cplusplus.com/doc/tutorial/files/ (by Duthomhas)
by navish
output file is overwrited
 
Hi everybody. This is my first post. For the customer function, i have tried to output to text file and data are overwrite each time i run the program. i have ...
[1 reply] : Open your file with the flags as std::ios::out | std::ios::app . Hop... (by Duthomhas)
by Kakashi
user input from keyboard
 
Ok so I am making this super mega crapy game, far from Gears or halo, but you have to start somewhere. I am trying to get input from the player and then see wha...
[4 replies] Last: Thank you oghma that fixed it just right. I see now that the code was ... (by Kakashi)
by Gatt
Cant open my dev ++ project file
 
I saved a assignment that me and a friend have been working on for ages and there are 6 files in the folder. Assignment1.exe, Assignment1.layout, Assignment1.de...
[8 replies] Last: Main.cpp and the .dev file both have the exact same thing inside them ... (by Gatt)
by sirkyuubi
Literals.. numeric character and string?
 
I have read about these, but I still can not get a grasp on what these are. Please help.
[3 replies] Last: I find that hard to believe. (by guestgulkan)
by ARWA
simple class and im confused>.<
 
hi am trying to construct a simple class put im verey confused i did this coad for now for me i dont see anything rong but for the compiler there must be an ...
[2 replies] Last: 1. If you the programmer provide a constructor that thakes parameters,... (by guestgulkan)
by aztecatenocx
Mean and Standard Deviation to 100 numbers
 
Hello, Im a beginner at C++ and I have completely lost my mind to what my instructor is asking. The question is to create a program that finds the mean and ...
[5 replies] Last: What? There's nothing wrong with arrays. For an assignment asking ... (by Duthomhas)
by xeyide
Dynamic Array of Objects
 
I'm working with a simple object "Fraction." It holds a numerator and a denominator. I've also make a member function called .print() that simply prints the f...
[2 replies] Last: Ahhhh I see. I didn't even think about that. Thank you so much! A... (by xeyide)
by chisser98
2D Vector won't compile
 
Hello everyone, I'm having some difficulty with initializing my Vector. I'm trying to simulate a 2d array with vectors. The source looks good to me, but fo...
[4 replies] Last: Ahh okay, that makes perfect sense then. Thanks jsmith! I'm experi... (by chisser98)
by haim
Strings replace word in file
 
I need to write program that reads in string from input file and whenever it finds "foo" it should replace it with "xxx" and send corrected string to output fil...
[4 replies] Last: Your while condition is checking the state of the stream and it probab... (by moorecm)
by mikecbjc
Difficulty defining function pointer to DLL class member function
 
Hi, I have seen examples of using typedefs for function pointers, but I cannot get the following code to compile without "error C2440: 'type cast' : cannot conv...
[2 replies] Last: Sounds like I'm going to have to do some serious research into C++/C# ... (by mikecbjc)
by GRANT90
convert exponential to decimal
 
I am struggling to convert an exponential number to the equivalent decimal value. ie. 2e2 to 200 or 12e-1 to 1.2 Any help would be much appreciated, even if j...
[2 replies] Last: You can read that as float or double in the first place and leave the ... (by Bazzy)
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