15
Library introduction
[library]
15.5
Library-wide requirements
[requirements]
15.5.5
Conforming implementations
[conforming]
15.5.5.10
Protection within classes
[protection.within.classes]
1
#
It is unspecified whether any function signature or class described in
[language.support]
through
[thread]
and
[depr]
is a friend of another class in the C++ standard library
.