https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93821
Bug ID: 93821
Summary: Define __cplusplus to 202002L in C++20
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: romain.geissler at amadeus dot com
Target Milestone: ---
Hi,
A few hours ago the clang folks did add explicit support for the flag
-std=c++20, and not only did they change that, they also changed the value of
__cplusplus to 202002L. I think in gcc this __cplusplus value shall be updated
too.
Right now on Compiler Explorer you need to use this assertions so that there is
no error on clang/gcc trunk:
#ifndef __clang__
static_assert(__cplusplus == 201709L);
#else
static_assert(__cplusplus == 202002L);
#endif
https://godbolt.org/z/kh2sxc
Cheers,
Romain
