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C++ Primer, Fifth Edition
book

C++ Primer, Fifth Edition

by Stanley B. Lippman, Josée Lajoie, Barbara E. Moo
August 2012
Intermediate to advanced
976 pages
30h 17m
English
Addison-Wesley Professional
Content preview from C++ Primer, Fifth Edition

Accessibility of Derived-to-Base Conversion

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Whether the derived-to-base conversion (§ 15.2.2, p. 597) is accessible depends on which code is trying to use the conversion and may depend on the access specifier used in the derived class’ derivation. Assuming D inherits from B:

• User code may use the derived-to-base conversion only if D inherits publicly from B. User code may not use the conversion if D inherits from B using either protected or private.

• Member functions and friends of D can use the conversion to B regardless of how D inherits from B. The derived-to-base conversion to a direct base class is always accessible to members and friends ...

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ISBN: 9780133053043Purchase Link