738 |
Return a @dfn{macro} which, when a symbol defined to this value |
Return a @dfn{macro} which, when a symbol defined to this value |
739 |
appears as the first symbol in an expression, evaluates the |
appears as the first symbol in an expression, evaluates the |
740 |
result of applying @var{code} to the expression and the |
result of applying @var{code} to the expression and the |
741 |
environment. The value returned from @var{code} which has been |
environment. For example: |
|
passed to @code{procedure->memoizing-macro} replaces the form |
|
|
passed to @var{code}. For example: |
|
742 |
|
|
743 |
@lisp |
@lisp |
744 |
(define trace |
(define trace |