ecution for each line using "call by need" an

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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Draw the run-time stack after the execution for each line using "call by need" and "call by name". Assume dynamic scoping

 

 
{ int y;
int z;
y := 7;
{ int f(int a) {
y := a+1;
return (y+a)
};
int g(int x) {
y := f(x+1)+1;
z := f(x-y+3);
return (z+1)
}
z := g(y*2);
};
}
Transcribed Image Text:{ int y; int z; y := 7; { int f(int a) { y := a+1; return (y+a) }; int g(int x) { y := f(x+1)+1; z := f(x-y+3); return (z+1) } z := g(y*2); }; }
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