import numpy 
import time
from Instant import inline_with_numpy

c_code = """
void ccos(int n1, double* x, int n2, double* y){
  for (int i=0; i<n1; i++) {  
      y[i] = cos(x[i]); 
  }
}
"""


ccos = inline_with_numpy(c_code, arrays = [['n1', 'x'], ['n2', 'y']])

a = numpy.arange(10000000.0); 
b = numpy.zeros(10000000)

t1 = time.time()
ccos (a,b)
t2 = time.time()
print 'With Instant:',t2-t1,'seconds'

t1 = time.time() 
c =  numpy.cos(a)
t2 = time.time()
print 'Med numpy:   ',t2-t1,'seconds'

difference = max(c- b) 
print "The difference between the sums computed by numpy and instant is " + str(difference)