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tertiary results of compiler-generated comparison operators

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Hello,

there as been some discussion recently about default compiler-generated
comparison operators, for example automatically generating operator< for
structs.

For total orders, often (hierarchical comparisons, strings, etc.) a
tertiary result (< or > or ==) can be generated for only a little more
runtime effort than a binary result (< or >=).

It would be a shame if any compiler generated comparisons would not expose
such tertiary result, because one would need to either manually implement
them or resort to the inefficiency of two calls to <.

For efficiency, any compiler-generated function should also be able to
internally use custom tertiary comparisons.

Arno


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tertiary results of compiler-generated comparison operators Arno Schoedl <arnoschoedl@googlemail.com> - 2015-05-19 01:59 -0600
  Re: tertiary results of compiler-generated comparison operators Öö Tiib <ootiib@hot.ee> - 2015-05-21 21:09 -0600

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