// tinyutils2.h
//    declares the structures and functions
//    defined in tinyutils2.cc

using namespace std;

struct Dvector {
  double *v ; // the vector itself
  int    low;
  int    high;
} ; // don't forget the semicolon in the structure definition

// memory management
int    allocate( Dvector &a , int low, int high ) ;
void   freeDvector ( Dvector &a );

// printing
void printDvector( Dvector &b , int style=0 ) ; 
// Default parameter values (such as 'style=0')
// must be specified in the declaration.
 
// maths
double square( double a ) ;