Finding minimum normalized positive number

[~electric~]

Hello,
I was asked to write a C program to find minimum normalized positive number that can be represented in my computer. I know that the value is 2.2250738585072014e-308.
I wrote the program to find the machine precision. Now i need to make some parameter changes to this program to find the min. number given above.
do
{
Epsilon = Epsilon/2.0 ; //Variable value is halved until the smallest
//value of 'e' is found while meeting the
//required condition
}
while ((float)((Epsilon+1.0))>1.0);

Epsilon = 2*Epsilon;

this gave me the machine precision. Any help would be appreciated.
thanks in advance.

 

[jim mcnamara]

I'm confused. You've casted Epsilon to a float (single precision), yet the value you shows is the POSIX value for min double precision numbers. Make Epsilon a double precision variable, and change the cast (float) to (double) - for starters.

Also, look in the limits.h file (unless you are on windows) for DBL_MIN and FLT_MIN.