Friending classes defined in the std namespace: any guarantees?

Friending classes defined in the std namespace: any guarantees?

References

Reference NO 1

http://stackoverflow.com/questions/15195840/friending-classes-defined-in-the-std-namespace-any-guarantees

Reference NO 2

http://stackoverflow.com/questions/16300432/are-static-class-members-guaranteed-to-be-initialized-before-main-is-called

Reference NO 3

http://en.wikibooks.org/wiki/C%2B%2B_Programming/Classes

Reference NO 4

http://www.boost.org/doc/libs/1_54_0/libs/serialization/doc/serialization.html

Reference NO 5

http://bytes.com/topic/c/answers/852186-deriving-class-anonymous-namespace

Reference NO 6

http://www.swig.org/Doc1.3/SWIGPlus.html

Reference NO 7

http://www.openoffice.org/ucb/docs/cachemap.html

Reference NO 8

http://www.open-std.org/jtc1/sc22/wg21/docs/wp/html/oct97/basic.html