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// Simplified version of Google's command line flags.
6// Does not support parsing the command line.
7// If you want to do that, see
8// http://code.google.com/p/google-gflags
9
10#ifndef RE2_UTIL_FLAGS_H__
11#define RE2_UTIL_FLAGS_H__
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#define DEFINE_bool(name, deflt, desc) DEFINE_flag(bool, name, deflt, desc)
20#define DEFINE_int32(name, deflt, desc) DEFINE_flag(int32, name, deflt, desc)
21#define DEFINE_string(name, deflt, desc) DEFINE_flag(string, name, deflt, desc)
22
23#define DECLARE_bool(name) DECLARE_flag(bool, name)
24#define DECLARE_int32(name) DECLARE_flag(int32, name)
25#define DECLARE_string(name) DECLARE_flag(string, name)
26
27#endif  // RE2_UTIL_FLAGS_H__
28