1 // Copyright 2018 The Abseil Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //      https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #include <iostream>
16 #include "absl/base/internal/thread_identity.h"
17 
main()18 int main() {
19   auto* tid = absl::base_internal::CurrentThreadIdentityIfPresent();
20   // Make sure the above call can't be optimized out
21   std::cout << (void*)tid << std::endl;
22 }
23