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fixes #6631

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Andreas Rumpf 2017-10-30 14:45:57 +01:00
commit b14cc1e3b2
8 changed files with 65 additions and 38 deletions
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changelog.md
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@ -24,8 +24,9 @@
use the ``pred`` proc.
- We changed how array accesses "from backwards" like ``a[^1]`` or ``a[0..^1]`` are
implemented. These are now implemented purely in ``system.nim`` without compiler
support. ``system.Slice`` now takes 2 generic parameters so that it can
take ``BackwardsIndex`` indices. ``BackwardsIndex`` is produced by ``system.^``.
support. There is a new "heterogenous" slice type ``system.HSlice`` that takes 2
generic parameters which can be ``BackwardsIndex`` indices. ``BackwardsIndex`` is
produced by ``system.^``.
This means if you overload ``[]`` or ``[]=`` you need to ensure they also work
with ``system.BackwardsIndex`` (if applicable for the accessors).
- ``mod`` and bitwise ``and`` do not produce ``range`` subtypes anymore. This