Modern C for Absolute Beginners: A Friendly Introduction to the C Programming Language

© Slobodan Dmitrović 2021

S. DmitrovićModern C for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-6643-4_26

26. Storage and Scope

Slobodan Dmitrović¹  

(1)

Belgrade, Serbia

 

Variables and data objects have certain properties, such as visibility, scope, storage, and lifetime. These terms are all closely related, and here we explain how they affect each other. We describe how names are visible to other names and how much time the data objects spend in memory.

26.1 Scope

When a variable (or a function) is declared, its name is only valid inside some portion/section of a source code. That section of a source code is called a scope. There are different kinds of scopes – local scope and global scope.

26.1.1 Local Scope

A function body starting with the ...