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Re: [C++ coroutines 0/6] Implement C++ coroutines.

From: Nathan Sidwell <nathan at acm dot org>
To: Iain Sandoe <iain at sandoe dot co dot uk>, GCC Patches <gcc-patches at gcc dot gnu dot org>, libstdc++ <libstdc++ at gcc dot gnu dot org>
Date: Mon, 18 Nov 2019 07:35:31 -0500
Subject: Re: [C++ coroutines 0/6] Implement C++ coroutines.
References: <F5F88589-1A8E-4311-AFC8-79E75C1C14C8@sandoe.co.uk>

On 11/17/19 5:23 AM, Iain Sandoe wrote:


This patch series is an initial implementation of a coroutine feature,
expected to be standardised in C++20.


Yay!

ABI
---

There is not need to add any new mangling, since the components of this are
regular functions with manipulation of the coroutine via a type-erased handle.


Ahem:

--- a/gcc/cp/operators.def
+++ b/gcc/cp/operators.def
@@ -87,6 +87,7 @@ DEF_OPERATOR ("++", PREINCREMENT_EXPR, "pp", OVL_OP_FLAG_UNARY)
 DEF_OPERATOR ("--", PREDECREMENT_EXPR, "mm", OVL_OP_FLAG_UNARY)
 DEF_OPERATOR ("->", COMPONENT_REF, "pt", OVL_OP_FLAG_UNARY)
 DEF_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("co_await", CO_AWAIT_EXPR, "aw", OVL_OP_FLAG_UNARY)


That looks mangly to me.  But perhaps such manglings are unreachable.

nathan

--
Nathan Sidwell

References:
- [C++ coroutines 0/6] Implement C++ coroutines.
  - From: Iain Sandoe

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