As with all compiler switch variables, the value of this variable
can be t, nil, or a
function object that accepts four arguments and returns t or nil. The arguments
passed to the function will be the values of the safety, space, speed,
and debug optimization qualities, in that order. nil is equivalent to a function that always returns
nil and t to a
function that always returns t. When the
value is a function and we say t (or true) or
nil (or false) in the text below, we mean
that the function returns, respectively, t or
nil.
If true, the compiler will trust declarations in code (other than
dynamic-extent declarations -- see trust-dynamic-extent-declarations-switch)
and produce code (when it can) that is optimized given the
declarations. These declarations typically specify the type of values
of variables. If nil, declarations
will be ignored – except (declare notinline) and (declare
special) which are always complied with.
See compiling.htm for information on the compiler.
The documentation is described in introduction.htm and the index is in index.htm.
Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.
Created 2000.10.5.