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[cpp.predefined]p2:
__STDCPP_THREADS__
Defined, and has the value integer literal 1, if and only if a program
can have more than one thread of execution .
Also define it only if it's not defined already, since it's supposed
to be defined by the compiler.
Also move it from thread to __config (which requires setting it only
if _LIBCPP_HAS_NO_THREADS is not defined).
Part of PR33230. The intent is to eventually make the compiler define
this instead.
llvm-svn: 367316
29 lines
692 B
C++
29 lines
692 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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// <thread>
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// #define __STDCPP_THREADS__ 1
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#include <thread>
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#include "test_macros.h"
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int main(int, char**)
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{
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#ifndef __STDCPP_THREADS__
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#error __STDCPP_THREADS__ is not defined
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#elif __STDCPP_THREADS__ != 1
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#error __STDCPP_THREADS__ has the wrong value
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#endif
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return 0;
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}
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