ANSI Common Lisp 12 Numbers 12.2 Dictionary of Numbers
typespec &optional environment
- Arguments and Values:
typespec - a type specifier.
environment - an environment object.
The default is nil, denoting the null lexical environment
and the and current global environment.
upgraded-typespec - a type specifier.
upgraded-complex-part-type returns the part type of the
most specialized complex number representation that can
hold parts of type typespec.
The typespec is a subtype of
(and possibly type equivalent to)
The purpose of upgraded-complex-part-type
is to reveal how an implementation does its upgrading.
- See Also:
complex (function and type)
- Allegro CL Implementation Details: