ceph/src/boost/libs/python/test/iterator.py

   1 # Copyright David Abrahams 2004. Distributed under the Boost
   2 # Software License, Version 1.0. (See accompanying
   3 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   4 '''
   5 >>> from iterator_ext import *
   6 >>> from input_iterator import *
   7 >>> x = list_int()
   8 >>> x.push_back(1)
   9 >>> x.back()
  10 1
  11 >>> x.push_back(3)
  12 >>> x.push_back(5)
  13 >>> for y in x:
  14 ...     print(y)
  15 1
  16 3
  17 5
  18 >>> z = range(x)
  19 >>> for y in z:
  20 ...     print(y)
  21 1
  22 3
  23 5
  24
  25    Range2 wraps a transform_iterator which doubles the elements it
  26    traverses. This proves we can wrap input iterators
  27
  28 >>> z2 = range2(x)
  29 >>> for y in z2:
  30 ...     print(y)
  31 2
  32 6
  33 10
  34
  35 >>> l2 = two_lists()
  36 >>> for y in l2.primes:
  37 ...     print(y)
  38 2
  39 3
  40 5
  41 7
  42 11
  43 13
  44 >>> for y in l2.evens:
  45 ...     print(y)
  46 2
  47 4
  48 6
  49 8
  50 10
  51 12
  52 >>> ll = list_list()
  53 >>> ll.push_back(x)
  54 >>> x.push_back(7)
  55 >>> ll.push_back(x)
  56 >>> for a in ll: #doctest: +NORMALIZE_WHITESPACE
  57 ...     for b in a:
  58 ...         print(b, end=' ')
  59 ...     print('')
  60 ...
  61 1 3 5
  62 1 3 5 7
  63 '''
  64
  65 from __future__ import print_function
  66
  67 def run(args = None):
  68     import sys
  69     import doctest
  70
  71     if args is not None:
  72         sys.argv = args
  73     return doctest.testmod(sys.modules.get(__name__))
  74
  75 if __name__ == '__main__':
  76     print("running...")
  77     import sys
  78     status = run()[0]
  79     if (status == 0): print("Done.")
  80     sys.exit(status)