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3 Commits

Author SHA1 Message Date
Anton Bachin
9810dd07ce Changed _size to a function. 
An alternative constant _size_constant is provided for use in C++98,
for example for declaring arrays.

Also renamed underlying_traits to integral_mapping.
 2015-06-19 17:05:33 -05:00
Anton Bachin
aa34aad468 Simplified underlying type traits. 
Removed the function are_equal. Comparison is now done by converting
operands to their integral representation, and comparing those. Also
restored ordering of enum values along the same lines (according to
integral representation).
 2015-06-15 19:29:39 -05:00
Anton Bachin
4314ad3fd3 Experimental generalization of underlying types. 
With this change, the underlying type can be a non-integral type that
provides conversions to and from an integral type. See the test at
test/cxxtest/underlying.h for some examples - though they are more
verbose than strictly necessary, for testing needs.

Move constructors in underlying types are not supported. It has been
difficult so far to get constexpr code not to select the move
constructor, which is generally not constexpr, for various operations.
 2015-06-11 20:39:46 -05:00