Language Overview
Plankalkül was remarkably complete, with some of its most advanced features
in the area of data structures. The simplest data type in Plankalkül was the
single bit. Integer and floating-point numeric types were built from the bit
type. The floating-point type used twos-complement notation and the “hidden
bit” scheme currently used to avoid storing the most significant bit of the
normalized fraction part of a floating-point value.
In addition to the usual scalar types, Plankalkül included arrays and records
(called structs in the C-based languages). The records could include nested
records.