Consider the following block. Assume call-by-value parameter passing.

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
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Consider the following block. Assume call-by-value parameter passing.
int x;
int y;
int z;
X = 4;
y = 6;
{ int f(int y) { return x*y };
int y;
1
2
3
4
10
11
12
13
14
15
16 );
y : 13;
{ int g(int x) { return f(y) };
{ int y;
};
y : 14;
z := g(3);
};
Transcribed Image Text:Consider the following block. Assume call-by-value parameter passing. int x; int y; int z; X = 4; y = 6; { int f(int y) { return x*y }; int y; 1 2 3 4 10 11 12 13 14 15 16 ); y : 13; { int g(int x) { return f(y) }; { int y; }; y : 14; z := g(3); };
b) Draw the runtime stack after each line executes under dynamic scoping. What value assigned to
z in line 127
Transcribed Image Text:b) Draw the runtime stack after each line executes under dynamic scoping. What value assigned to z in line 127
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