[Warning] converting to `int' from `double'

branpute · #1 14-Dec-2008, 13:25

I seem to be having some issues with some code i've made for a recent project, and I come here to get some help with it.

I need to get this function to work.. It is supposed to find the median of a given one dimensional array.. but all I get is this error:

Code:

315 C:\Dev-Cpp\Untitled26.cpp [Warning] converting to `int' from `double'

Here is the function code:

CPP / C++ / C Code:

double med(double v[],int n)
{
  int k;
  double median_v;
  //calc mediam
  k = floor(n/2);
  if (n%2 != 0)
  {
     median_v = v[k];
  }
  else
  {
      median_v = ((v[k-1] + v[k])/2);
  )
  return median_v;
}

Any help to make it work, is appreciated.

dlp · #2 14-Dec-2008, 13:49

CPP / C++ / C Code:

k = floor(n/2);

The floor function returns a double by definition:
http://www.cplusplus.com/reference/c...ath/floor.html

It really is not an issue if you mean it to be an integer value.

branpute · #3 14-Dec-2008, 14:17

Quote:

Originally Posted by dlp

CPP / C++ / C Code:

k = floor(n/2);

The floor function returns a double by definition:
www.cplusplus.com

It really is not an issue if you mean it to be an integer value.

ok thanks alot.

davekw7x · #4 14-Dec-2008, 14:40

Quote:

Originally Posted by branpute

ok thanks alot.

Why do you even go to the trouble to use the floor() function? Integer division n/2 gives the same result as floor(n/2), but without the hassle and overhead of a needless and useless function call.

Regards,

Dave

PowerHouse · #5 14-Dec-2008, 15:00

Quote:

Originally Posted by davekw7x

Why do you even go to the trouble to use the floor() function? Integer division n/2 gives the same result as floor(n/2), but without the hassle and overhead of a needless and useless function call.

Regards,

Dave

I would take his advice, he has ALWAYS been correct when helping me.

davekw7x · #6 14-Dec-2008, 16:11

Quote:

Originally Posted by PowerHouse

I would take his advice...

Thank you for the kind words.

However...

I really, really try not to put out misleading or incorrect information, but everyone screws the pooch from time to time.

In other words, and words, and words:

"Trust, but verify."
---Ronald Reagen

"Don't get all of your information from one place."
---davekw7x

"Do your own research."
---Richard Feynman

Regards,

Dave

sakisbl · #7 15-Dec-2008, 16:21

Quote:

I would take his advice, he has ALWAYS been correct when helping me.

I agree. Dave is ALWAYS correct. His knowledge is unbelievable.

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