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@@ -26,7 +26,7 @@
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\def\racketEd{0}
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\def\pythonEd{1}
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-\def\edition{1}
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+\def\edition{0}
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% material that is specific to the Racket edition of the book
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\newcommand{\racket}[1]{{\if\edition\racketEd{#1}\fi}}
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@@ -11533,9 +11533,10 @@ program:\\
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\begin{lstlisting}
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(let ([x 2])
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(let ([y 0])
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- (+ y (let ([t1 (get! x)])
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- (let ([t2 (begin (set! x 40) (get! x))])
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- (+ t1 t2))))))
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+ (let ([t1 x])
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+ (let ([t2 (begin (set! x 40) x)])
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+ (let ([t3 (+ t1 t2)])
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+ (+ y t3))))))
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\end{lstlisting}
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\end{minipage}
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The temporary variable \code{t1} gets the value of \code{x} before the
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Jeremy G. Siek