New type trait primitives in GCC 5

[Nathan Ridge]

The standard library that ships with GCC 5 makes use of three new type trait primitives:

  __is_trivially_copyable
  __is_trivially_constructible
  __is_trivially_assignable

I couldn't find documentation of these primitives here [1]. Am I looking in the wrong place, or are they undocumented?

Thanks,
Nate

[1] https://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html