Never mind - looks like the system call I wanted was statfs()

http://linux.die.net/man/2/statfs

Hi,

I'm trying to write some code that will validate if we are trying to write to nfs and if so, complain. From what I've read, the stat() call populates the st_dev with value of the file system...

Looks like this was the solution:

http://www.parashift.com/c++-faq-lite/strange-inheritance.html#faq-23.9

(I added a 'using Base::print' to my NewOne class)

Consider this working code:

#include <iostream>

using namespace std;
class Base
{
public:
void print(string val)
{

Hi,

Trying to play with multithreading by taking some of my existing apps and converting them over. In doing so, I noticed a strange phenomenon that I've been able to reproduce in a very simple...

vijayan121 (http://www.daniweb.com/techtalkforums/member134320.html), I don't think ifstream works for files over 2GB, which mine is. (7GB)

Is there a way using file handling functions to search within a text file to find the position of certain text WITHOUT having to read each character/line and evaluating it?

For example, let's say...

Dave,

In the end that's what I pretty much ended up doing. Just thought there might be a faster/more efficient approach.

A valid question. The reason is this is data that USED to be in the database and was 'archived' off.

So here's what I'm trying to do. Basically, I have a huge text file of strings which are delimited by a delimiter. I would like to read each string separately based on the delimiter. Note that each...

Assuming you won't in fact attempt to change 'crap' inside the 'bull' function, simply change the above to:

void bull( const char[] )
and
void bull( const char crap[] )
{
std::cout <<...

That works, unfortunately, I don't want it to be a static function as I want it to use the instance of the class that I'm working in.

Say what Dr. Dave?

I had trouble following your other thread too. guess I'm biting off more than I can chew.

Dave,

Don't lose sleep over it. But if you're up anyway, yes please find the other thread ;)

WB

Dave,

I was looking at that - went over my head. Is there an easy answer to my particular example? Part of the problem seems to be that I'm INSIDE my class when I'm trying to pass another member...

So I'm trying to learn how to use function pointers (ie to pass the address of a function to another function to execute it - like a call back). I have it working when I use it as follows:
...

Let me give you this hint - since several of the months have the same behavior - ie 1,3,5,7,8,10,12 are all 31 days, while 4,6,9,11 are all 30 days, then you could easily use a 'switch' statement on...

Missing a semicolon here:
unsigned long k //k as an unsigned long integer

also, either change cout to std::cout or put a 'using namespace std;' at the top after the include.

You're treating deck[i] like a pointer when it's not.

You're gonna have to give us a bit more than that - how about some source code?

Why are you doing cout so many times inside the loop? You're going to get like 400 printouts...

As Narue was saying, cleanest way is to load each word from the file into something like a vector<string> myWords, then generate a random number between 0 and the vector's myWords.size(). Then you...

#include <iostream>
#include <sstream>
using namespace std;
int main()
{
int a =23545;
ostringstream o;
o<<a;
cout<<o.str().size()<<endl;
return 0;

http://www.delorie.com/djgpp/v2faq/faq22_25.html

Also, main really should return an int.

trade(word[i]) != '\n' || i < 5)

(don't you want && i< 5 )

add a 'using namespace std' at the top and see if it makes a difference.

I could use a template or do the cast, the problem is that I want to do special processing based on the type (ie if it's a bool, then print it out as 'TRUE' or 'FALSE', etc. By adding the function...

I figured it out. When I pass an int, it can't decide whether to use the bool or the long. I think I just need to create an int version of the function as well...

What about if you pass a long to the function in main?

Is there a way in C++ to deal with this? (a way to force that a boolean is strictly a boolean and cannot be converted to another numerical type?)

line 42: Error: Overloading ambiguity between...

If look at my example, I don't think any cleanup was required because I didn't do a 'new', and I didn't need a clone method...

Sounds reasonable, though when you were doing 'Animal &' I think you were running the same risk... Hopefully someone will be able to help - I definitely think it has to do with copy constructors......

Not sure about your question, I can tell you that I only got what you wanted to work (with the vectors, when I made the vector store pointers of Animal). I think it has something to do with the fact...

Here's the deal - you need the 'virtual' word in the Animal class when defining eat(). (Don't do the =0)

See this example:


#include <iostream>
using namespace std;
class Animal
{...

Now that I think about it, what you have should already work. When you call the eat method, is it calling the wrong one?

When creating the eat() function in Animal , set it equal to 0. for example:
class Animal
{
void eat()=0;
};

What specifically do you need help with?

It works for me:

#include <iostream>
using namespace std;
int main()
{
double determinant = 2.8*5*-9.5;
cout << "determinant = " << determinant<<endl;
return 0;
}

Show us how you're printing it out.