02-c-style-heap.cxx File Reference

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Functions
void	initialize (double *x, int n)
double	sum_elements (double *x, int n)
int	main ()

Function Documentation

void initialize	(	double *	x,
		int	n
	)

Examples:

02-c-style-heap.cxx.

Definition at line 9 of file 02-c-style-heap.cxx.

{
  for (int i=0;i<n;i++) x[i]= 1.0/(double)(1+n-i);
}

double sum_elements	(	double *	x,
		int	n
	)

Examples:

02-c-style-heap.cxx.

Definition at line 14 of file 02-c-style-heap.cxx.

{
  double sum=0;
  for (int i=0;i<n;i++) sum+=x[i];
  return sum;
}

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int main

(

void

)

Examples:

02-c-style-heap.cxx.

Definition at line 21 of file 02-c-style-heap.cxx.

{
  const int n=12345678;

  // Allocate an array on the heap
  double* x=new double[n];

  initialize(x,n);
  double s=sum_elements(x,n);
  printf("sum=%e\n",s);
  
  // Free the space previously allocated.
  delete[] x;
  return 0;
}

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