fp_class

   Determines the class of IEEE floating-point values.

   This function is supported on OpenVMS Integrity servers and
   Alpha only.

   Format

     #include  <math.h>

     int fp_class  (double x);

     int fp_classf  (float x);

     int fp_classl  (long double x);
 

Additional information available:

Argument        Description     Return_Value