On 10/8/24 8:58 AM, Michael Matz wrote:
Hello,
On Tue, 8 Oct 2024, Jonathan Wakely wrote:
We originally had global static variables, which means a different
variable per TU. That causes ODR violations which were silently
ignored until we try to use them in modules, where they're diagnosed.
So we need to replace them.
Aren't these variables implementation detail? If so violating language
rules like ODR should be okay. (Imagine libgcc would be written in some
language where such rules doesn't exist).
So isn't the actual problem that needs solving rather that c++ modules
trip over these here?
That's an interesting point; we need to handle internal variables in
header units, I'm not sure how much trouble it would be to provide a way
to suppress the exposure diagnostic for particular statics in a named
module.
Jason
