Symbol Table in C++
In this article, you will learn about the symbol table in C++.
Compiler Design symbol table
In order to store information on the existence of different entities, such as variable and function names, objects and classes, etc., the compiler builds and maintains a data structure. Symbol tables are one class of data structure.
C++ code for symbol table entry:
Found symbol A in the symbol table. Symbol X not found in the symbol table.
Symbol table operations
There are several symbol table operations in C++. Some main symbol table operations in C++ are as follows:
Operate on the Symbol table.
A symbol table can use the Allocate Operation to allocate a brand-new, empty symbol table.
Operation Insert on the Symbol table
A symbol table's Insert Operation can be used to insert a name and return a pointer to the entry.
Operation Set_attribute on the Symbol table
Set_attribute is a symbol table that can be operated on to associate an attribute with a specific entry.
Operation Get_attribute on the Symbol table
Get_attribute is a symbol table that can be operated on to obtain an attribute connected to a specific entry.
Operation of Lookup on the Symbol Table
Lookup An operation on a symbol table can be used to look for a name and return a pointer to its entry.
Free Operation on the Symbol table
A symbol table's storage can be freed up by performing a Free Operation to remove every entry. On the symbol table, additional actions can be carried out in a similar manner to remove operations.
Deployment of the Symbol table
It is possible to implement symbol tables using a variety of data structure methods. The following techniques are listed:
Implementation of symbol tables in C++ using hashing:
**** SYMBOL_TABLE **** if insertion -successfully number insertion -successfully Identifier's Name:if Type:keyword Scope: local Line Number: 4 Identifier Is present if Identifier is deleted Number Identifier updated Identifier's Name:number Type:variable Scope: global Line Number: 3 Identifier Is present
The symbol table is a crucial tool for language processing systems which provides the essential infrastructure to manage the complicated semantics and behavior of identifiers in C programs. It is essential to make sure the code is executed correctly and efficiently.