How do compilers use symbol tables?

Can you explain how compilers use symbol tables?

Sure! Symbol tables are data structures used by compilers to store information about variables, functions, and other identifiers in a program.

What kind of information is stored in a symbol table?

A symbol table typically stores the name of the identifier, its type, scope, and sometimes its memory location.

How does the symbol table help during the compilation process?

It helps the compiler check for errors, manage variable scopes, and optimize code by providing quick access to identifier information.

Are there different types of symbol tables?

Yes, there are various types, such as static and dynamic symbol tables, which differ in how they manage scope and lifetime of identifiers.