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PROGRAM EXAMPLE VAR y, n FUNCTION POWER (IN n) BEGIN IF n == 0 THEN return 1 ELSE return y * POWER(n-1) ENDIF END BEGIN READ(y, n) IF n >= 0 THEN WRITE(POWER(n)) ENDIF END For a dynamically scoped programming language, deep access to a non-local variable cannot be determined at compile time. Explain why using the program above. Show how the problem of deep access can be resolved by 1) redefining the parameters of the above code and 2) using shallow access via a central table,

PROGRAM EXAMPLE VAR y, n FUNCTION POWER (IN n) BEGIN IF n == 0 THEN return 1 ELSE return y * POWER(n-1) ENDIF END BEGIN READ(y, n) IF n >= 0 THEN WRITE(POWER(n)) ENDIF END For a dynamically scoped programming language, deep access to a non-local variable cannot be determined at compile time. Explain why using the program above. Show how the problem of deep access can be resolved by 1) redefining the parameters of the above code and 2) using shallow access via a central table,

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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PROGRAM EXAMPLE VAR y, n FUNCTION POWER (IN n) BEGIN IF n == 0 THEN return 1 ELSE return y * POWER(n-1) ENDIF END BEGIN READ(y, n) IFn>= 0 THEN WRITE(POWER(n)) ENDIF END For a dynamically scoped programming language, deep access to a non-local variable cannot be determined at compile time. Explain why using the program above. Show how the problem of deep access can be resolved by 1) redefining the parameters of the above code and 2) using shallow access via a central table.
Transcribed Image Text:PROGRAM EXAMPLE VAR y, n FUNCTION POWER (IN n) BEGIN IF n == 0 THEN return 1 ELSE return y * POWER(n-1) ENDIF END BEGIN READ(y, n) IFn>= 0 THEN WRITE(POWER(n)) ENDIF END For a dynamically scoped programming language, deep access to a non-local variable cannot be determined at compile time. Explain why using the program above. Show how the problem of deep access can be resolved by 1) redefining the parameters of the above code and 2) using shallow access via a central table.
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