bpmnr/nr_checks.c

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#include <bpm/bpm_messages.h>
#include <bpm/bpm_nr.h>


int nr_is_int( double x ) {

  if( ABS( x - (int) x ) == 0. ) return TRUE;
  
  return FALSE;
}

// -----------------------------------------------------------------------------

int nr_is_pow2( unsigned long n ) {

  int p = 0;
  int r = 0;

   do {
     r = n % 2;  n /= 2;  p++;
   } while ( r == 0 && n > 1 );

   if( r != 0 ) return FALSE;

   return p;
}

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