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Vincent St-Amour d5941cb2d6 TR's numeric tower is now built from unions of non-overlapping base types. A lot of the work that was done by special-casing number types can now be done by TR's handling of unions. This makes it easier to add more numeric types to the tower and should make writing down types for numeric primitives much less error-prone. In addition, this commit adds several numeric types that will help get tighter bounds on integer arithmetic, such as Index types. They will have to be integrated to the base environment before they can be useful. original commit: d4c93cc12e6df893ba2e782f0e0ea5529738315a	2011-01-31 16:39:13 -05:00
collects	TR's numeric tower is now built from unions of non-overlapping base types.	2011-01-31 16:39:13 -05:00

Vincent St-Amour d5941cb2d6 TR's numeric tower is now built from unions of non-overlapping base types.

A lot of the work that was done by special-casing number types can now be
done by TR's handling of unions. This makes it easier to add more numeric
types to the tower and should make writing down types for numeric
primitives much less error-prone.

In addition, this commit adds several numeric types that will help get
tighter bounds on integer arithmetic, such as Index types. They will have
to be integrated to the base environment before they can be useful.

original commit: d4c93cc12e6df893ba2e782f0e0ea5529738315a

2011-01-31 16:39:13 -05:00

collects

TR's numeric tower is now built from unions of non-overlapping base types.

2011-01-31 16:39:13 -05:00