Considering the following procedure declaration in a language with dynamic scoping, whatis the output produced if the parameter passing mechanism is• Pass by value• Pass by value-result• Pass by reference• Pass by name procedure p;x: integer;A[0],A[1],... , A[10] := 0;procedure q;begin x := x+1; s(x,A[x]); write(x) end;procedure r;x: integer;begin x := 0; q; write(x) end;procedure s(first, second);x: integer := 2;beginfirst := first+1;A[x] := 5;write(first);write(second);end;beginx:= 2;rend;

Answered: Considering the following procedure…

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

Considering the following procedure declaration in a language with dynamic scoping, what
is the output produced if the parameter passing mechanism is
• Pass by value
• Pass by value-result
• Pass by reference
• Pass by name

procedure p;
x: integer;
A[0],A[1],... , A[10] := 0;
procedure q;
begin x := x+1; s(x,A[x]); write(x) end;
procedure r;
x: integer;
begin x := 0; q; write(x) end;
procedure s(first, second);
x: integer := 2;
begin
first := first+1;
A[x] := 5;
write(first);
write(second);
end;
begin
x:= 2;
r
end;

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