Forum: C++ Feb 25th, 2009 |
| Replies: 5 Views: 369 Thank you very much. That really worked.
At last my program to transfer content of one file to another. Again thanks. Here is the full program for further reference to other users.
... |
Forum: C++ Feb 25th, 2009 |
| Replies: 3 Views: 799 I have to use a dynamic array structure to store the contents of a an input text file. Firstly I do not know how long the input text file will be and thus need to work this out first. The use of a... |
Forum: C++ Feb 25th, 2009 |
| Replies: 3 Views: 799 I have a very similar assignment in which we have been specified that we are NOT allowed to use vectors. Is there any other way in this case to count the number of lines of data within a text file?? |
Forum: C++ Feb 25th, 2009 |
| Replies: 5 Views: 369 Thank you very much for taking time to correct my program. I am from India and here we learn about only basics of c++ and our syllabus is based on turbo c++ 3. So i use turbo c++ and i don't know... |
Forum: C++ Feb 24th, 2009 |
| Replies: 5 Views: 369 Please correct the error in my program. When i run the program on turbo c++ 3, it output 3 times. Also When i enter more than 1 entry only the last entry is outputted. Also it is outputted 3 times. ... |
Forum: C++ Feb 24th, 2009 |
| Replies: 3 Views: 783 I still have another problem. That is when the while loop asks continue(y/n)
When i enter n it just stuck there.
I need to make the program error free urgently. Please reply with solution. I use... |
Forum: C++ Feb 24th, 2009 |
| Replies: 3 Views: 783 I found the error and corrected it.
#include<fstream.h>
#include<iostream.h>
#include<conio.h>
class student
{
int rollno;
char name[20];
int tm;
public: |
Forum: C++ Feb 24th, 2009 |
| Replies: 3 Views: 783 think i got this from my friend
void main()
{
student obj;
obj.input();
obj.transfer();
obj.output();
getch();
} |
Forum: C++ Feb 24th, 2009 |
| Replies: 3 Views: 783 Please find and correct the error in my c++ program. "Linker Error: Undefined symbol _main in module c0.ASM"
The program is for transfering content of one file to another.
#include<fstream.h>... |
Forum: C++ Dec 26th, 2008 |
| Replies: 2 Views: 1,473 Wow. I was working all day, I missed that... I'm sorry :)
Thanks for the REALLY fast answer.
Solved. |
Forum: C++ Dec 26th, 2008 |
| Replies: 2 Views: 1,473 Hy, I am trying to encode an X509 certificate into base64, and since the encoder I'm using takes only char*, and typecasting doesn't work, i find a different way to do this. I'm sure there is a... |
Forum: C++ Nov 11th, 2008 |
| Replies: 2 Views: 994 I am using cin to input a single character from keyboard.The problem is that if 2 or more characters are entered then the rest of the characters are being considered as input for the further cin... |
Forum: C++ Nov 6th, 2008 |
| Replies: 3 Views: 829 If I initialize graphics in my program and then use cout the font appears bigger than normal and the cursor doesn't blink on the screen as it does when the graphics are not initialized.Is there any... |
Forum: C++ Oct 13th, 2008 |
| Replies: 7 Views: 665 A few more things.
* In expression, the case where a single term matches will fail because, after failing to match a '+' or '-', the code just falls through to returning false. Similar thing with... |
Forum: C++ Oct 12th, 2008 |
| Replies: 7 Views: 665 I can point out a few things.
* You are relying on the default return values of your boolean functions being false. In the case of 'term', if the first 'perimeter' call returns false, you might... |
Forum: C++ Sep 26th, 2008 |
| Replies: 2 Views: 527 In c++ i want to know how to output the result on dos screen page wise,i.e. when i am displaying something if the page is filled then a prompt should come like "Press any key to continue.."
More... |
Forum: C++ Aug 6th, 2008 |
| Replies: 10 Views: 6,201 This isn’t entirely true. While the debugger is great for most apps, there are times when it is not feasible, if not outright impossible to use the debugger.
It’s called Heisenberg debugging,... |
Forum: C++ Jun 7th, 2008 |
| Replies: 4 Views: 561 No. "continue" skips the remaining iteration of the loop (in this case, the for loop). So it goes directly to the "n++" step, and then starts the next iteration of the loop, testing the condition and... |
Forum: C++ Jun 7th, 2008 |
| Replies: 14 Views: 1,908 why not just call
pedal()
what is the difference?
if pedal is a virtual function in "cycle", then both will accomplish the same thing
this is identical to just
pedal() |
Forum: C++ Jun 6th, 2008 |
| Replies: 7 Views: 1,234 No. The vector takes care of deallocating any memory it uses when it is destructed, which also destructs all the things in the vector. The string takes care of deallocating any memory it uses when it... |
Forum: C++ May 31st, 2008 |
| Replies: 2 Views: 408 The standard way to do it with inheritance is probably to have an array of Employee pointers
Employee* employees[10];
(You can also dynamically allocate it if you really wish. It will be like... |
Forum: C++ May 29th, 2008 |
| Replies: 14 Views: 1,023 that's not what was asked |
Forum: C++ May 29th, 2008 |
| Replies: 9 Views: 2,687 If there is truly a legitimate reason for a subclass to want to access a field, it should be declared "protected". |
Forum: C++ May 29th, 2008 |
| Replies: 7 Views: 1,840 These are identical. It is a pointer in both cases. So I guess it may be more clear to write it as a pointer. The second case might cause beginners to think that you are passing an entire array by... |
Forum: C++ May 24th, 2008 |
| Replies: 5 Views: 622 This is wrong, by the way. "m[i]" looks up "i" as a key in the map. So it will not only fail to compile when "T" is not "int"; but even when it is an int, the binding might not exist. |
Forum: C++ May 15th, 2008 |
| Replies: 1 Views: 323 it's right. vector doesn't have a method named "length()". it does have a method named "size()". |
Forum: C++ May 15th, 2008 |
| Replies: 2 Views: 387 this one only works if the "3" part is a constant, and always creates a "rectangular" array made of contiguous parts, no pointers involved |
Forum: C++ May 15th, 2008 |
| Replies: 9 Views: 1,356 Next time, at least put in minimal effort and post an error or something; instead of other people repeatedly posting suggestions, and you just saying "doesn't work" each time without any clue as to... |
Forum: C++ May 12th, 2008 |
| Replies: 3 Views: 498 how about
root = new Node<K>(newKey, NULL, NULL); |
Forum: C++ May 11th, 2008 |
| Replies: 7 Views: 952 Also, a fundamental problem with your grow() function:
The last line is completely useless, because "array" is a local variable, assigning it has no effect outside the function. |
Forum: C++ May 9th, 2008 |
| Replies: 2 Views: 1,389 So these are all very self-explanatory. What part of the errors don't you understand?
Apparently Find() takes two arguments (a bool reference as a second argument) and doesn't return anything;... |
Forum: C++ May 6th, 2008 |
| Replies: 3 Views: 518 the second and fourth const are utterly and completely pointless. there is never a point to declare that a value passed by value is not going to be modified. you should remove them |
Forum: C++ May 3rd, 2008 |
| Replies: 5 Views: 22,089 static local variables and static data members have lifetimes like global variables (there is only one copy in the program, and it exists for the whole duration of the program), except that their... |
Forum: C++ May 3rd, 2008 |
| Replies: 4 Views: 702 sum should be set to 0 at the beginning of every iteration of the outer loop
and i is only incremented at every block of three, so "bin[i]" is the same all three times |
Forum: C++ May 2nd, 2008 |
| Replies: 7 Views: 597 wow.
what did you expect that code to do? |
Forum: C++ May 2nd, 2008 |
| Replies: 4 Views: 572 except that it doesn't check bounds |
Forum: C++ May 2nd, 2008 |
| Replies: 3 Views: 420 should probably be
opOverload obj1(10,20);
opOverload obj2(30,40); |
Forum: C++ May 1st, 2008 |
| Replies: 5 Views: 707 just download it from the sourceforge project
http://sourceforge.net/projects/dev-cpp/ |
Forum: C++ Apr 29th, 2008 |
| Replies: 2 Views: 415 you need to make the method in the base class virtual
http://en.wikipedia.org/wiki/Virtual_function |
Forum: C++ Apr 29th, 2008 |
| Replies: 4 Views: 2,281 if you need to delete arbitrary elements a lot, then perhaps you don't want to use a vector, because it is very expensive, both to find it and to shift all the remaining elements |