Select the statement that is false regarding file guarding. Group of answer choices: In your .h files all code should be contained within the guards. It restricts the scope of a namespace, which prevents namespace pollution. If used properly it prevents redefinitions of classes/functions. It is an instruction to the preprocessor. It must make use of a unique identifier.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Select the statement that is false regarding file guarding.
Group of answer choices:
  1. In your .h files all code should be contained within the guards.
  2. It restricts the scope of a namespace, which prevents namespace pollution.
  3. If used properly it prevents redefinitions of classes/functions.
  4. It is an instruction to the preprocessor.
  5. It must make use of a unique identifier.
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