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| author | Eric Fiselier <eric@efcs.ca> | 2019-01-06 00:37:31 +0000 |
|---|---|---|
| committer | Eric Fiselier <eric@efcs.ca> | 2019-01-06 00:37:31 +0000 |
| commit | b168a7c6604857e507c7da90cdb7c2bc683adf2e (patch) | |
| tree | edbd4ed7da70cfbb164e95cffbd348a27243cac5 /libcxx/include/experimental/system_error | |
| parent | 9dabf6ac70dafbdcbfbc3b6401de92731897e958 (diff) | |
| download | bcm5719-llvm-b168a7c6604857e507c7da90cdb7c2bc683adf2e.tar.gz bcm5719-llvm-b168a7c6604857e507c7da90cdb7c2bc683adf2e.zip | |
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.
llvm-svn: 350485
Diffstat (limited to 'libcxx/include/experimental/system_error')
| -rw-r--r-- | libcxx/include/experimental/system_error | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libcxx/include/experimental/system_error b/libcxx/include/experimental/system_error index 7937357fa14..1cf84ee0125 100644 --- a/libcxx/include/experimental/system_error +++ b/libcxx/include/experimental/system_error @@ -7,5 +7,15 @@ // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// +#ifndef _LIBCPP_EXPERIMENTAL_SYSTEM_ERROR +#define _LIBCPP_EXPERIMENTAL_SYSTEM_ERROR -#error "<experimental/system_error> has been removed. Use <system_error> instead." +#include <__config> + +#ifdef _LIBCPP_WARNING +_LIBCPP_WARNING("<experimental/system_error> has been removed. Use <system_error> instead.") +#else +# warning "<experimental/system_error> has been removed. Use <system_error> instead." +#endif + +#endif // _LIBCPP_EXPERIMENTAL_SYSTEM_ERROR |
