On 12/09/2016 09:29 AM, Jason Merrill wrote:
On Thu, Dec 8, 2016 at 5:31 PM, Richard Smith <[email protected]> wrote:

Of note is the repeated suggestion to allow explicit template parameter
lists in lambdas (at this point, I'd give this a very solid chance of being
part of C++20):

  auto lambda = []<typename T>(T a, T b) {};

We would presumably need to mangle that as UlT_T_E even with the Da
suggestion, so it seems that demanglers are just going to need to cope with
Ul introducing a new template parameter scope.

Makes sense.

I think the ABI doc should at least mention that uses of 'auto' in a generic lambda's parameter list are mangled as the artificial template they're represented as (as that seems to be the intent)

Anyway, how do we expect the above example to be mangled as? Something like 'UlI...ET_T_E_'? I.e. are the explicit template args in that suggestion distinguished from synthesized 'auto' ones? It'd be unfortunate if the mangling we have right now blocked something needed later.

nathan
--
Nathan Sidwell
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