1 // Copyright 2009 The RE2 Authors. All Rights Reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 #ifndef UTIL_FLAGS_H_ 6 #define UTIL_FLAGS_H_ 7 8 // Simplified version of Google's command line flags. 9 // Does not support parsing the command line. 10 // If you want to do that, see 11 // https://gflags.github.io/gflags/ 12 13 #define DEFINE_FLAG(type, name, deflt, desc) \ 14 namespace re2 { type FLAGS_##name = deflt; } 15 16 #define DECLARE_FLAG(type, name) \ 17 namespace re2 { extern type FLAGS_##name; } 18 19 namespace re2 { 20 template <typename T> GetFlag(const T & flag)21T GetFlag(const T& flag) { 22 return flag; 23 } 24 } // namespace re2 25 26 #endif // UTIL_FLAGS_H_ 27