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