[expr.post.incr], [expr.pre.incr]
Change:
Remove increment operator with bool operand.
Rationale: Obsolete feature with occasionally surprising semantics.
Effect on original feature: A valid C++ 2014 expression utilizing the increment operator on
a bool lvalue is ill-formed in this International Standard.
Note that this might occur when the lvalue has a type given by a template
parameter.
[expr.new], [expr.delete]
Change: Dynamic allocation mechanism for over-aligned types.
Rationale: Simplify use of over-aligned types.
Effect on original feature: In C++ 2014 code that uses a new-expression
to allocate an object with an over-aligned class type,
where that class has no allocation functions of its own,
::operator new(std::size_t)
is used to allocate the memory.
In this International Standard,
::operator new(std::size_t, std::align_val_t)
is used instead.