File: overhead.pyx

package info (click to toggle)
cython-legacy 0.29.37-2
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 15,328 kB
  • sloc: python: 67,540; ansic: 14,965; cpp: 1,340; xml: 1,031; makefile: 364; lisp: 206; sh: 159; sed: 11
file content (15 lines) | stat: -rw-r--r-- 384 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
from cpython cimport array
import array

cdef array.array a = array.array('i', [1, 2, 3])
cdef int[:] ca = a

cdef int overhead(object a):
    cdef int[:] ca = a
    return ca[0]

cdef int no_overhead(int[:] ca):
    return ca[0]

print(overhead(a))  # new memory view will be constructed, overhead
print(no_overhead(ca))  # ca is already a memory view, so no overhead