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Added a link to the page describing EBO.

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Andrey Semashev
2021-12-08 16:15:48 +03:00
parent b6119df27f
commit 96169c9fc6
1 changed files with 3 additions and 3 deletions
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doc/operators.qbk
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@ -1942,9 +1942,9 @@ above was 12-24 bytes on various compilers for the Win32 platform,
instead of the expected 8 bytes.
Strictly speaking, it was not the library's fault [ndash] the language rules
allow the compiler to apply the empty base class optimization in that
situation. In principle an arbitrary number of empty base classes can be
allocated at the same offset, provided that none of them have a common
allow the compiler to apply the [@https://en.cppreference.com/w/cpp/language/ebo empty base class optimization]
in that situation. In principle an arbitrary number of empty base classes can
be allocated at the same offset, provided that none of them have a common
ancestor (see [sect]10 \[class.derived\] paragraph 8 of the C++11 standard).
But the language definition also does not ['require] implementations