re2/util/flags.h

Go to the documentation of this file.

// Copyright 2009 The RE2 Authors.  All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
 
#ifndef UTIL_FLAGS_H_
#define UTIL_FLAGS_H_
 
// Simplified version of Google's command line flags.
// Does not support parsing the command line.
// If you want to do that, see
// https://gflags.github.io/gflags/
 
#define DEFINE_FLAG(type, name, deflt, desc) \
        namespace re2 { type FLAGS_##name = deflt; }
 
#define DECLARE_FLAG(type, name) \
        namespace re2 { extern type FLAGS_##name; }
 
namespace re2 {
template <typename T>
T GetFlag(const T& flag) {
  return flag;
}
}  // namespace re2
 
#endif  // UTIL_FLAGS_H_