https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89855
--- Comment #7 from James Y Knight <foom at fuhm dot net> --- Ugh, GCC doesn't wrap quoted text? Re-posting the quote from http://eel.is/c++draft/headers#5 without a quote marker... """ Except as noted in [library] through [thread] and [depr], the contents of each header cname is the same as that of the corresponding header name.h as specified in the C standard library. In the C++ standard library, however, the declarations (except for names which are defined as macros in C) are within namespace scope of the namespace std. It is unspecified whether these names (including any overloads added in [support] through [thread] and [depr]) are first declared within the global namespace scope and are then injected into namespace std by explicit using-declarations. """
