tree e066b6dde3e6c091686dd1fab508a619ca184ea6
parent 6693c562f90925dd5214d86875a6f82ca5c6ef93
author Arthur O'Dwyer <arthur.j.odwyer@gmail.com> 1642882393 -0500
committer Arthur O'Dwyer <arthur.j.odwyer@gmail.com> 1643073265 -0500

[libc++] Fix LWG3422 "Issues of seed_seq's constructors"

https://cplusplus.github.io/LWG/issue3422

Also add a static_assert to check the "Mandates:" on the
iterator-pair constructor. Oddly, the `InputIterator` parameter
itself is merely preconditioned, not constrained, to satisfy the
input iterator requirements.

Also drive-by rename `init` to `__init`.

Differential Revision: https://reviews.llvm.org/D117962