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\DOC dropout
\TYPE {dropout : (void -> void)}
\SYNOPSIS
Move from top-level ML to top-level Lisp.
\DESCRIBE
Unlike {lsp}, which breaks out of ML, and leaves one in a position to
return to it by continuing lisp execution, {dropout} returns the user to
the Lisp top-level. The function {(tml)} must then be invoked to return to
ML. This is inherently dangerous (internal state may not be consistent),
and should be avoided.
\FAILURE
Never fails.
\EXAMPLE
{
_ _ __ _ __ __
|___ |__| | | | |__| |__|
| | | |__| |__ |__| |__|
Version 1.12 (Sun3/Franz), built on Feb 23 1991
#dropout();;
[Return to top level]
-> ^D
EOF
-> (tml)
_ _ __ _ __ __
|___ |__| | | | |__| |__|
| | | |__| |__ |__| |__|
Version 1.12 (Sun3/Franz), built on Feb 23 1991
##
}
\COMMENTS
The behaviour of {dropout} is unpredictable in Common Lisp, but performs as
advertised in plain Franz Lisp. {dropout} is not meant for general use, and
should be treated with great care. If one is not wary, it is entirely possible
to corrupt HOL by using it.
\SEEALSO
lisp, lsp.
\ENDDOC
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