2 * Copyright 2016 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.
19 #if FOLLY_HAVE_LIBGFLAGS
20 #include <gflags/gflags.h>
22 #define FOLLY_DECLARE_FLAG(_type, _name) extern _type FLAGS_##_name
23 #define DECLARE_bool(_name) FOLLY_DECLARE_FLAG(bool, _name)
24 #define DECLARE_double(_name) FOLLY_DECLARE_FLAG(double, _name)
25 #define DECLARE_int32(_name) FOLLY_DECLARE_FLAG(int, _name)
26 #define DECLARE_int64(_name) FOLLY_DECLARE_FLAG(long long, _name)
27 #define DECLARE_uint64(_name) FOLLY_DECLARE_FLAG(unsigned long long, _name)
28 #define DECLARE_string(_name) FOLLY_DECLARE_FLAG(std::string, _name)
30 #define FOLLY_DEFINE_FLAG(_type, _name, _default) _type FLAGS_##_name = _default
31 #define DEFINE_bool(_name, _default, _description) \
32 FOLLY_DEFINE_FLAG(bool, _name, _default)
33 #define DEFINE_double(_name, _default, _description) \
34 FOLLY_DEFINE_FLAG(double, _name, _default)
35 #define DEFINE_int32(_name, _default, _description) \
36 FOLLY_DEFINE_FLAG(int, _name, _default)
37 #define DEFINE_int64(_name, _default, _description) \
38 FOLLY_DEFINE_FLAG(long long, _name, _default)
39 #define DEFINE_uint64(_name, _default, _description) \
40 FOLLY_DEFINE_FLAG(unsigned long long, _name, _default)
41 #define DEFINE_string(_name, _default, _description) \
42 FOLLY_DEFINE_FLAG(std::string, _name, _default)