Issue with uneven stride

[Chris Jefferson]

The attached testcase I think shows that striding a vector of length 1 with a step of length 2 misbehaves.

This is a reduced sample of what happens when strided.cpp is used with libc++ std::deques, but the bug will show on any compiler.

Expected output: 0 (I think) 0 0

Received output: 1 0 -1

[Chris Jefferson]

range example

[Neil Groves]

Thank you for your report. The correct expected output should have been 1 0 0.

This has been fixed and committed to the trunk.