2 * Copyright 2015 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 // Wrapper around <chrono> that hides away some gcc 4.6 issues
18 #ifndef FOLLY_CHRONO_H_
19 #define FOLLY_CHRONO_H_
22 #include <folly/Portability.h>
24 // gcc 4.6 uses an obsolete name for steady_clock, although the implementation
26 #if __GNUC_PREREQ(4, 6) && !__GNUC_PREREQ(4, 7)
27 namespace std { namespace chrono {
28 typedef monotonic_clock steady_clock;
32 #endif /* FOLLY_CHRONO_H_ */