indirect_value

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Can I replace shared_ptr by indirect_value ?

1

I can see that `unique_ptr` can be replaced by `indirect_value`. But what about `shared_ptr` ? `shared_ptr` deserves to keep const-ness 😃 I tried `propagate_const` few years ago and const-ness worked...

bansan85

Arsenic-ATG

Make null-state non-observable

3

Work in progress, does not compile.

jbcoe

See https://github.com/carbon-language/carbon-lang/blob/trunk/common/indirect_value.h

jbcoe

Add a GDB pretty-printer

1

See: https://sourceware.org/gdb/onlinedocs/gdb/Pretty-Printing.html

jbcoe

Add customisation for std::formatter inline with p1636r2 for unique_ptr/shared_ptr

1

[p1636r2](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1636r2.pdf) proposed formatter for numerous types missing in the STL. If this is accepted, then future types added to the STL should also provide this customisations.

Twon

Ensure that indirect_value can be passed in a register when the copier/deleter are empty

1

See: https://stackoverflow.com/questions/58339165/why-can-a-t-be-passed-in-register-but-a-unique-ptrt-cannot for more context.

jbcoe

jbcoe

Explicitly disable support for use with lambda

1

To keep the reference implementation simple we should not attempt to support using SFINAE to enable default construction based on the copier type. Static asserts should be provided to make...

Twon

Some references on fast pimpl: http://www.gotw.ca/gotw/028.htm https://www.bfilipek.com/2018/01/pimpl.html https://github.com/oliora/samples/blob/master/spimpl.h In a post-C++ 11 world, this will need to handle meeting the alignment requirements of over-aligned type when alignment information is not...

Twon