VOOZH about

URL: https://www.geeksforgeeks.org/cpp/difference-between-syntax-and-semantics/

⇱ Difference Between Syntax and Semantics - GeeksforGeeks

  • Courses
  • Tutorials
  • Interview Prep

Difference Between Syntax and Semantics

Last Updated : 23 Jul, 2025
  • It refers to the rules and regulations for writing any statement in a programming language like C/C++.
  • It does not have to do anything with the meaning of the statement.
  • A statement is syntactically valid if it follows all the rules.
  • It is related to the grammar and structure of the language.
  • It refers to the meaning associated with the statement in a programming language.
  • It is all about the meaning of the statement which interprets the program easily.
  • Errors are handled at runtime.

Program 1:
Below is the code to demonstrate the semantic error:


Output
 

Explanation:

  • The output will be blank because the above program is semantically incorrect syntax.
  • This program has no syntax error as it is following every programming rule but still, it will not print anything on the screen because the return statement is written before the cout statement which causes the program to terminate before printing anything on the screen. This type of situation is considered a semantic error.


Program 2:
Below is the correct code i.e, without any syntax and semantic errors. 


Output
GFG!

:

Basis

Syntax

Semantics

MeaningIt refers to the rules of any statement in the programming language.It refers to the meaning associated with any statement in the programming language
ErrorIt is referred to as a syntax error. It is generally encountered at the compile time. It occurs when a statement that is not valid according to the grammar of the programming language. Some examples are missing semicolons in C++, using undeclared variables in Java, etc.It referred to as a semantic error. It is generally encountered at run time. It occurs when a statement is syntactically valid but does not do what the programmer intended. This type of error is tough to catch.
In linguisticsThe syntax is the arrangement or order of words, determined by both the writer’s style and grammar rules. There are two areas of semantics that are logical semantics and lexical semantics.
SensitivityThe syntax is case sensitive in most programming languages.Most of the semantics are case-insensitive.
Comment
Article Tags: