Which data structure in a compiler is used for managing information about variables and their attributes?

A. Abstract syntax tree

B. Symbol table

C. Semantic stack

D. Parse table

Correct Answer is :

B. Symbol table

Explanation

Symbol table is a data structure used by a language translator such as a compiler or interpreter, where each identifier in a program’s source code is associated with information relating to its declaration or appearance in the source, such as its type, scope level and sometimes its location.