Consider the following statements :
1. In a bottom-up evaluation of a SDT, inherited attribute can always be evaluated.
2. In a bottom-up evaluation of a SDT, inherited attribute can evaluated only if definition in L-attributed.
The number of the correct statements is/are _______.

Only 1

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Both 1 and 2

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Only 2

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None of the above.

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Solution

The correct option is C Only 2
Only 2 statement is true.

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Similar questions

A \to P Q and A \to X Y .

S \to S * A {S.val = S.val \times A.val} S \to A {S.val = A.val} A \to A + B {A.val = A.val - B.val} B \to (S) {B.val = 2} A \to B {A.val = B.val} B \to id {B.val = id.val}

S_{1} : Given SDT is L- attributed and using L- attributed evaluation the value of the expression 4*6+3 * 7 i s 84. S_{2} : Given SDT is S- attributed and using S-attributed evaluatin value of the expression 4 * 6 + 3 * 7 i s 84.

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