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"""
>>> range_loop_indices()
** Calculating step **
(9, 9, 8, 1, 2)
>>> from_loop_indices()
** Calculating step **
(10, 10, 0)
"""
cdef int get_step():
"""
This should only be called once, when used in range().
"""
print u"** Calculating step **"
return 2
def range_loop_indices():
"""
Optimized integer for loops using range() should follow Python behavior,
and leave the index variable with the last value of the range.
"""
cdef int i, j, k=0, l=10, m=10
for i in range(10): pass
for j in range(2,10): pass
for k in range(0,10,get_step()): pass
for l in range(10,0,-1): pass
for m in range(10,0,-2): pass
return i, j, k, l, m
def from_loop_indices():
"""
for-from-loops should follow C behavior, and leave the index variable
incremented one step after the last iteration.
"""
cdef int i, j, k
for i from 0 <= i < 5+5 by get_step(): pass
for j from 0 <= j < 10: pass
for k from 10 > k > 0: pass
return i, j, k
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