macros.H
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1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration | Website: https://openfoam.org
5  \\ / A nd | Copyright (C) 2016-2020 OpenFOAM Foundation
6  \\/ M anipulation |
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8 License
9  This file is part of OpenFOAM.
10 
11  OpenFOAM is free software: you can redistribute it and/or modify it
12  under the terms of the GNU General Public License as published by
13  the Free Software Foundation, either version 3 of the License, or
14  (at your option) any later version.
15 
16  OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19  for more details.
20 
21  You should have received a copy of the GNU General Public License
22  along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
23 
24 Description
25  General C-preprocessor macros
26 
27 \*---------------------------------------------------------------------------*/
28 
29 #ifndef macros_H
30 #define macros_H
31 
32 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
33 
34 //- Concatenate two preprocessor tokens
35 #define CAT_(a, b) a ## b
36 #define CAT(a, b) CAT_(a, b)
37 
38 //- Concatenate three preprocessor tokens
39 #define CAT3_(a, b, c) a ## b ## c
40 #define CAT3(a, b, c) CAT3_(a, b, c)
41 
42 //- Concatenate four preprocessor tokens
43 #define CAT4_(a, b, c, d) a ## b ## c ## d
44 #define CAT4(a, b, c, d) CAT4_(a, b, c, d)
45 
46 //- Concatenate five preprocessor tokens
47 #define CAT5_(a, b, c, d, e) a ## b ## c ## d ## e
48 #define CAT5(a, b, c, d, e) CAT5_(a, b, c, d, e)
49 
50 //- Generate an identifier unique within the file in which it is generated
51 #define FILE_UNIQUE(x) CAT(x, __LINE__)
52 
53 //- Map 'name' to 'Name' via the predefined macro CAPITALIZE_name
54 #define CAPITALIZE(name) CAPITALIZE_##name
55 
56 //- Convert macro expression to a string
57 #define STR_(x) #x
58 #define STR(x) STR_(x)
59 
60 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
61 
62 #endif
63 
64 // ************************************************************************* //