Scope

Scope of an identifier is the region in the program where this identifier is valid.

• Scope is delimited by the braces;
• An identifier declared outside all braces has global scope
• The identifier is only known from the point it is declared until the end of its scope.

More than one object can have the same identifier

• if they are not in the same scope;
• If more than one is valid, the local scope is assumed

An object declared in a scope is:

• created everytime the scope is entered;
• deleted everytime the scope exited.