escript/src/system_dep.h

/**
\file system_dep.h
\ingroup Other
 */
/*
 @(#) system_dep.h
*/


#ifndef escript_system_dep_h
#define escript_system_dep_h


#ifdef NO_FLOAT_H
#   define DBL_EPSILON 2.2204460492503131E-16
#   define DBL_MAX 1.7976931348623157E+308
#   define DBL_MIN 2.2250738585072014E-308
#else /* for the rest of the world */
#   include <float.h>
#endif
#include <limits.h>

# ifdef __INTEL_COMPILER
/*
 The Intel compiler on windows has an "improved" math library compared to the usual Visual C++ one
 In particular it has a acosh and other similar functions which aren't implemented in Visual C++ math.h
 Note you will get a compile time error if any other header (including system ones) includes math.h whilst mathimf.h
 has been included. As a result system_dep.h must be included FIRST at all times (this prevents math.h from being included).
*/
#  include <mathimf.h>
# else
#  include <math.h>
# endif

#ifndef M_PI
#   define M_PI 3.14159265358979323846
#endif

#ifndef SQRT_DBL_EPSILON
#   define SQRT_DBL_EPSILON   1.4901161193847656e-08
#endif

#ifndef M_LN2
#   define M_LN2  0.69314718055994530942  /* log_e 2 */
#endif

#ifdef _WIN32

#ifndef INTERFACE_STATIC_LIB
# ifdef ESCRIPT_EXPORTS
#   define ESCRIPT_DLL_API __declspec(dllexport)
#  else
#   define ESCRIPT_DLL_API __declspec(dllimport)
# endif
#endif

#else
# define ESCRIPT_DLL_API
#endif

#endif
1	/**
2	\file system_dep.h
3	\ingroup Other
4	*/
5	/*
6	@(#) system_dep.h
7	*/
8
9
10	#ifndef escript_system_dep_h
11	#define escript_system_dep_h
12
13
14	#ifdef NO_FLOAT_H
15	# define DBL_EPSILON 2.2204460492503131E-16
16	# define DBL_MAX 1.7976931348623157E+308
17	# define DBL_MIN 2.2250738585072014E-308
18	#else /* for the rest of the world */
19	# include <float.h>
20	#endif
21	#include <limits.h>
22
23	# ifdef __INTEL_COMPILER
24	/*
25	The Intel compiler on windows has an "improved" math library compared to the usual Visual C++ one
26	In particular it has a acosh and other similar functions which aren't implemented in Visual C++ math.h
27	Note you will get a compile time error if any other header (including system ones) includes math.h whilst mathimf.h
28	has been included. As a result system_dep.h must be included FIRST at all times (this prevents math.h from being included).
29	*/
30	# include <mathimf.h>
31	# else
32	# include <math.h>
33	# endif
34
35	#ifndef M_PI
36	# define M_PI 3.14159265358979323846
37	#endif
38
39	#ifndef SQRT_DBL_EPSILON
40	# define SQRT_DBL_EPSILON 1.4901161193847656e-08
41	#endif
42
43	#ifndef M_LN2
44	# define M_LN2 0.69314718055994530942 /* log_e 2 */
45	#endif
46
47	#ifdef _WIN32
48
49	#ifndef INTERFACE_STATIC_LIB
50	# ifdef ESCRIPT_EXPORTS
51	# define ESCRIPT_DLL_API __declspec(dllexport)
52	# else
53	# define ESCRIPT_DLL_API __declspec(dllimport)
54	# endif
55	#endif
56
57	#else
58	# define ESCRIPT_DLL_API
59	#endif
60
61	#endif