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Diffstat (limited to 'build-aux/m4/l_atomic.m4')
| -rw-r--r-- | build-aux/m4/l_atomic.m4 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/build-aux/m4/l_atomic.m4 b/build-aux/m4/l_atomic.m4 index 75c43f9a92..5201a8cc7c 100644 --- a/build-aux/m4/l_atomic.m4 +++ b/build-aux/m4/l_atomic.m4 @@ -14,6 +14,9 @@ m4_define([_CHECK_ATOMIC_testbody], [[ #include <cstdint> int main() { + std::atomic<bool> lock{true}; + std::atomic_exchange(&lock, false); + std::atomic<int64_t> a{}; int64_t v = 5; |