(7) (4 points) Considering the following C program void fun1(void) int a, b, c;

Question

(7) (4 points) Considering the following C program void fun1(void) int a, b, c; /*definition 1 void fun2(void) ( int a,c; /*definition 2*/ void fun3 (void) ( int a; /*definition 3*/ point X: use a, use c; when we have calling sequence fun 1(/> fun2()fun30, at point x, (1) According to static scoping, for "use a", a is the one defined in 2) According to static scoping, for "use c", c is the one defined in (3) According to dynamic scoping, for "use a", a is the one defined in (4) According to dynamic scoping, for "use c", c is the one defined in

Explanation / Answer

1) a is the one defined in fun3()

In case if local variable is present it is given preference in both static scoping and dynamic scoping both.

2) c is the one defined in the global area or which is the global variable and is declared outside main

3) a is the one defined in fun3()

In case if local variable is present it is given preference in both static scoping and dynamic scoping both.

4) c is the one defined in fun2()

In dynamic scoping previously called function is searched for unknown variable

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