Question: Symbol table: Consider the following program is lexically-scoped language such as C. int x, y; int f (int p) { int y, z; { int

Symbol table: Consider the following program is lexically-scoped language such as C.

int x, y;

int f (int p) {

int y, z;

{

int i, j;

/* point A*/

}

/* point B*/

/* point C*/

How can the compiler organize symbol table information at compile time to handle nested scoping? Draw the logical state of the symbol tables(s).

Answer: The compiler can use nested symbol tables, one table per scope. Symbol table contain a pointer to the table of their enclosing scope.

What symbols are visible at points A, B, C?

Answer:

A: x, f, p, y, z, i, j

B: x, f, p, y, z

C: x, y, f

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

4. Symbol table: Consider the following program in a lexically-scoped language such as C. int x, y: int f( int p) t int y, z; int i, j * Point A / * Point B * Point C* a. How can the compiler...

Q:

4. Symbol table: Consider the following program in a lexically-scoped language such as C. int x,y; int f(int p) { } int y, z; int i, j; /* Point A */ /* Point B */ /* Point C*/ a. How can the...

Q:

Consider the following program which is written in C syntax: int x = 1 ; void f 1 ( ) { int x = 2 ; f 2 ( ) ; printf ( x ) } void f 2 ( ) { int x = 3 ; printf ( x ) } int main ( ) { f 1 ( ) ; printf...

Q:

4. Consider the following program: I int a-2 2 void foo (int b) ( 258 Lee &Seshia, Introduction to Embedded Systems 9. MEMORY ARCHITECTURES printf ("%d", b) ; main (void) foo (a)i a-1; s int main...

Q:

4. Consider the following program: I int a2 2 void foo (int b) 258 Lee &Seshia, Introduction to Embedded Systems 9. MEMORY ARCHITECTURES printf("%d", b); s int main (void) foo (a) al Is it true or...

Q:

Programming Language Problem set 5 and 7 1)Pass by value 2)Pass by reference 3)Pass by value-result Draw a table for your results You should have 9 sets of results for #5(do them in the above order)...

Q:

Q 4 / This question requires you to use the 8 - bit assembler that you have worked with during this module. A brief summary of its syntax and instructions can be found on the next page. Consider the...

Q:

Consider the following program in c #include #include catalib.h> #include int main() pid t x = 0; int i; for (i=1;i 1 is a constant defined in the beginning of the program through a #define statement...

Q:

type and explained answer required (a) Consider the following program in an Algol-like language: procedure int f(int x, int y) = begin x := x + 5; y := y + 8; return (x + y) end; int u := 4; int v :=...

Q:

Consider the following program. program main int x , y ; proc A; int z ; proc B; call C ; print x ; x : = x + 1 ; end B proc C; int x , z ; ; call D ; print x ; end C call B ; print x ; end A proc D;...

Q:

Suppose that each of two urns has four chips, numbered 1 through 4. A chip is drawn from the first urn and bears the number X. That chip is added to the second urn. A chip is then drawn from the...

Q:

A researcher will choose qualitative research if he wants to obtain detailed information about a few people. Select one: a. False b. True

Q:

Identify Apple s long - term debt as reported on its balance sheet at ( a ) September 2 8 , 2 0 1 9 , and ( b ) September 2 9 , 2 0 1 8 .

Q:

Compared with half a century ago, adoption has become _ _ _ _ _ _ _ _ _ common, but it is more open and acceptabl e , so we probably discuss it _ _ _ _ _ _ _ . fill in the blanks more or much less or...

Q:

How does the Job Level Table differ from the Job Family and Occupation Tables, and how are all Three tables related?

Q:

What is the Definition for Third Normal Form?

Q:

Provide two examples of a One-To-Many relationship.