-
Notifications
You must be signed in to change notification settings - Fork 0
/
float_range.py
58 lines (51 loc) · 1.39 KB
/
float_range.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
import math
class float_range:
def __init__(self, start, stop=None, step=None):
if stop is None:
self.start = 0
self.stop = start
else:
self.start = start
self.stop = stop
if step is None:
self.step = 1.0
else:
self.step = step
def _done(self, cur, start, stop, step):
if start < stop and cur < stop:
if step > 0:
return False
else:
return True
elif start > stop and cur > stop:
if self.step < 0:
return False
else:
return True
else:
return True
def __len__(self):
len = math.floor((self.stop - self.start) / self.step) + 1
if len >= 0:
return len
else:
return 0
def __iter__(self):
cur = self.start
while not self._done(cur, self.start, self.stop, self.step):
yield cur
cur += self.step
if __name__ == "__main__":
tstcon = (
(0.5, 2.5, 0.5),
(3.5, 0, -1),
(0.0, 3.0, None),
(3.0, None, None),
(5, 10, 1.5),
(10, 5, 1.5),
(10, 5, -1.5),
(5, 10, -1.5),
)
for start, stop, end in tstcon:
fr = float_range(start, stop, end)
print( [start,stop,end], len(fr),list(fr))