1 /**
2  * @file    extern.h
3  * @brief   Definitions of LIBSBML_EXTERN and related things.
4  * @author  Ben Bornstein
5  *
6  * <!--------------------------------------------------------------------------
7  * This file is part of libSBML.  Please visit http://sbml.org for more
8  * information about SBML, and the latest version of libSBML.
9  *
10  * Copyright (C) 2020 jointly by the following organizations:
11  *     1. California Institute of Technology, Pasadena, CA, USA
12  *     2. University of Heidelberg, Heidelberg, Germany
13  *     3. University College London, London, UK
14  *
15  * Copyright (C) 2019 jointly by the following organizations:
16  *     1. California Institute of Technology, Pasadena, CA, USA
17  *     2. University of Heidelberg, Heidelberg, Germany
18  *
19  * Copyright (C) 2013-2018 jointly by the following organizations:
20  *     1. California Institute of Technology, Pasadena, CA, USA
21  *     2. EMBL European Bioinformatics Institute (EMBL-EBI), Hinxton, UK
22  *     3. University of Heidelberg, Heidelberg, Germany
23  *
24  * Copyright (C) 2009-2013 jointly by the following organizations:
25  *     1. California Institute of Technology, Pasadena, CA, USA
26  *     2. EMBL European Bioinformatics Institute (EMBL-EBI), Hinxton, UK
27  *
28  * Copyright (C) 2006-2008 by the California Institute of Technology,
29  *     Pasadena, CA, USA
30  *
31  * Copyright (C) 2002-2005 jointly by the following organizations:
32  *     1. California Institute of Technology, Pasadena, CA, USA
33  *     2. Japan Science and Technology Agency, Japan
34  *
35  * This library is free software; you can redistribute it and/or modify it
36  * under the terms of the GNU Lesser General Public License as published by
37  * the Free Software Foundation.  A copy of the license agreement is provided
38  * in the file named "LICENSE.txt" included with this software distribution and
39  * also available online as http://sbml.org/software/libsbml/license.html
40  * ---------------------------------------------------------------------- -->*/
41 
42 #ifndef LIBSBML_EXTERN_H
43 #define LIBSBML_EXTERN_H
44 
45 #include <sbml/common/libsbml-namespace.h>
46 
47 #if ( defined(WIN32) && !defined(CYGWIN) && !defined(__MINGW32__))
48 
49 #if ( ! defined LIBSBML_STATIC )
50 /**
51  * The following ifdef block is the standard way of creating macros which
52  * make exporting from a DLL simpler. All files within this DLL are
53  * compiled with the LIBSBML_EXPORTS symbol defined on the command line.
54  * This symbol should not be defined on any project that uses this
55  * DLL. This way any other project whose source files include this file see
56  * LIBSBML_EXTERN functions as being imported from a DLL, wheras this DLL
57  * sees symbols defined with this macro as being exported.
58  *
59  * (From Andrew Finney's sbwdefs.h, with "SBW" replaced by "LIBSBML" :)
60  */
61 #if defined(LIBSBML_EXPORTS)
62 #  define LIBSBML_EXTERN __declspec(dllexport)
63 #else
64 #  define LIBSBML_EXTERN __declspec(dllimport)
65 #endif
66 
67 #else
68 #  define LIBSBML_EXTERN
69 #endif  /* LIBSBML_STATIC */
70 
71 /**
72  * Disable MSVC++ warning C4800: 'const int' : forcing value to bool 'true'
73  * or 'false' (performance warning).
74  */
75 #pragma warning(disable: 4800)
76 
77 /**
78  * Disable MSVC++ warning C4291: no matching operator delete found.
79  */
80 #pragma warning(disable: 4291)
81 
82 /**
83  * Disable MSVC++ warning C4251: class 'type' needs to have dll-interface
84  * to be used by clients of class 'type2'.
85  *
86  * For an explanation of why this is safe, see:
87  *   - http://www.unknownroad.com/rtfm/VisualStudio/warningC4251.html
88  */
89 #pragma warning(disable: 4251)
90 #pragma warning(disable: 4275)
91 
92 #else
93 
94 /**
95  * LIBSBML_EXTERN is used under Windows to simplify exporting functions
96  * from a DLL.  When compiling under Windows, all files within this DLL are
97  * compiled with the LIBSBML_EXPORTS symbol defined on the command line.
98  * This in turn causes extern.h to define a different version of
99  * LIBSBML_EXTERN that is appropriate for exporting functions to client
100  * code that uses the DLL.
101  */
102 #define LIBSBML_EXTERN
103 
104 #endif  /* WIN32 */
105 
106 #undef BEGIN_C_DECLS
107 #undef END_C_DECLS
108 
109 #if defined(__cplusplus)
110 #  define BEGIN_C_DECLS extern "C" {
111 #  define END_C_DECLS   }
112 #else
113 #  define BEGIN_C_DECLS
114 #  define END_C_DECLS
115 #endif
116 
117 
118 #endif  /** LIBSBML_EXTERN_H **/
119 
120