Problem 3. Parameter Passing Consider the following block. Assume dynamic scoping. 1 ( int y; 2 int z; 3 4 e 5 6 7 8 e 9 10 11 12 13 14 15 }; y := 6; { int }; f(int a) { y = a +1; return (y+a) }; int g(int x) { y = f(x+1)+2; z = f(x-y+2); return (z+1) } z = g(y*2); a) Draw the runtime stack after each line executes given that both parameters a and x are passed using Call-by-Name. What are the values of y and z after line 13 executes? b) Draw the runtime stack after each line executes given that both parameters a and x are passed using Call-by-Need. What are the values of y and z after line 13 executes?

Problem 3. Parameter Passing Consider the following block. Assume dynamic scoping. 1 ( int y; 2 int z; 3 4 e 5 6 7 8 e 9 10 11 12 13 14 15 }; y := 6; { int }; f(int a) { y = a +1; return (y+a) }; int g(int x) { y = f(x+1)+2; z = f(x-y+2); return (z+1) } z = g(y*2); a) Draw the runtime stack after each line executes given that both parameters a and x are passed using Call-by-Name. What are the values of y and z after line 13 executes? b) Draw the runtime stack after each line executes given that both parameters a and x are passed using Call-by-Need. What are the values of y and z after line 13 executes?

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter2: Using Data

Section: Chapter Questions

Problem 14RQ

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