https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71214
Bug ID: 71214
Summary: Typo in feature test macro for rvalue references
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: trprince at synopsys dot com
Target Milestone: ---
According to P0096R2
(http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0096r2.html) the
feature test macro for C++11 rvalue references should be
'__cpp_rvalue_references'. However, GCC uses '__cpp_rvalue_reference' (note the
missing 's').
$ g++ -std=c++11 -dM -E -xc++ /dev/null | grep __cpp_rvalue
#define __cpp_rvalue_reference 200610
$
Clang and EDG both use the plural version:
$ clang++ -std=c++11 -dM -E -xc++ /dev/null | grep __cpp_rvalue
#define __cpp_rvalue_references 200610
$ edgcpfe-4.11 --c++11 --list_macros - < /dev/null | grep __cpp_rvalue
#define __cpp_rvalue_references 200610
$
I've tested and reproduced this behavior as far back as 4.9.2 which I believe
is around the time the feature test macros were originally introduced.
