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ANSI Common Lisp  12 Numbers 12.2 Dictionary of Numbers
| 12.2.51 upgraded-complex-part-type |
Function |
- Syntax:
-
upgraded-complex-part-type
typespec &optional environment
 upgraded-typespec
- 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.
- Description:
-
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 upgraded-typespec.
The purpose of upgraded-complex-part-type
is to reveal how an implementation does its upgrading.
- See Also:
-
complex (function and type)
- Notes:
-
- Allegro CL Implementation Details:
-
None.
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