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Add support for slicing steps to Python STL wrappers (positive step only atm - these work the same as other Python sequences such as list)

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12898 626c5289-ae23-0410-ae9c-e8d60b6d4f22
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William S Fulton 2012-01-20 21:14:03 +00:00
commit 1b47ddf8f0
4 changed files with 178 additions and 47 deletions
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@ -5,6 +5,45 @@ See the RELEASENOTES file for a summary of changes in each release.
Version 2.0.5 (in progress)
===========================
2012-01-20: wsfulton
[Python] Add Python stepped slicing support to the STL wrappers (std::vector, std::list).
Assigning to a slice, reading a slice and deleting a slice with steps now work.
Positive steps only at the moment. For example:
%template(vector_i) std::vector<int>
vi = vector_i(range(10))
print list(vi)
vi[1:4:2] = [111, 333]
print list(vi)
del vi[3:10:3]
print list(vi)
gives (same behaviour as native Python sequences such as list):
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
[0, 111, 2, 333, 4, 5, 6, 7, 8, 9]
[0, 111, 2, 4, 5, 7, 8]
2012-01-20: wsfulton
[Python] Fix some indexing bugs in Python STL wrappers when the index is negative, eg:
%template(vector_i) std::vector<int>
iv=vector_i([0,1,2,3,4,5])
iv[-7:]
now returns [0, 1, 2, 3, 4, 5] instead of [5].
vv[7:9] = [22,33]
now returns [0, 1, 2, 3, 4, 5, 22, 33] instead of "index out range" error.
Also fix some segfaults when replacing ranges, eg when il is a std::list wrapper:
il[0:2] = [11]
2012-01-17: wsfulton
[Go] Fix forward class declaration within a class when used as a base.