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Eric Fiselier 6420803549 Fix PR39749 - Headers containing just #error harm __has_include. This patch changes <experimental/foo> to use #warning instead of is harmful to common feature detection idioms. We should also consider only emitting the warning when __DEPRECATED is defined, like we do in the <ext/foo> headers. Users may want to specify "-Werror=-W#warnings" while still ignoring the libc++ warnings. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@350485 91177308-0d34-0410-b5e6-96231b3b80d8	7 years ago
..
use_header_warning.fail.cpp	Fix PR39749 - Headers containing just #error harm __has_include.	7 years ago
version.pass.cpp	Fix PR39749 - Headers containing just #error harm __has_include.	7 years ago

Eric Fiselier 6420803549 Fix PR39749 - Headers containing just #error harm __has_include.

This patch changes <experimental/foo> to use #warning instead of
is harmful to common feature detection idioms.

We should also consider only emitting the warning when __DEPRECATED is
defined, like we do in the <ext/foo> headers. Users may want to specify
"-Werror=-W#warnings" while still ignoring the libc++ warnings.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@350485 91177308-0d34-0410-b5e6-96231b3b80d8

use_header_warning.fail.cpp

Fix PR39749 - Headers containing just #error harm __has_include.

version.pass.cpp

Fix PR39749 - Headers containing just #error harm __has_include.