Problem 2. Static and Dynamic ScopeConsider the following block. Assume call-by-value parameter passing.1 = {2345678910 e111213141516};int x;int y;int z;X = 4;y := 6;{ int f(int y) { return x*y };int y;};y = 13;{ int g(int x) { return f(y) };{int y;y = 14;z := g(3);};};a) Draw the runtime stack after each line executes under static scoping. What value assigned to z inline 12?b) Draw the runtime stack after each line executes under dynamic scoping. What value assigned toz in line 12?

Here, we have to answer two questions for the given program: a. Draw the runtime stack after each…

a) Draw the runtime stack after each line executes under static scoping. What value assigned to z in line 12? b) Draw the runtime stack after each line executes under dynamic scoping. What value assigned to z in line 12?

a) Draw the runtime stack after each line executes under static scoping. What value assigned to z in line 12? b) Draw the runtime stack after each line executes under dynamic scoping. What value assigned to z in line 12?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Problem 2. Static and Dynamic Scope
Consider the following block. Assume call-by-value parameter passing.
1 = {
2
3
4
5
6
7
8
9
10 e
11
12
13
14
15
16
};
int x;
int y;
int z;
X = 4;
y := 6;
{ int f(int y) { return x*y };
int y;
};
y = 13;
{ int g(int x) { return f(y) };
{
int y;
y = 14;
z := g(3);
};
};
a) Draw the runtime stack after each line executes under static scoping. What value assigned to z in
line 12?
b) Draw the runtime stack after each line executes under dynamic scoping. What value assigned to
z in line 12?

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