source: sasview/sansmodels/src/libigor/winFuncs.h @ d62f422

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload
Last change on this file since d62f422 was 67424cd, checked in by Mathieu Doucet <doucetm@…>, 13 years ago

Reorganizing models in preparation of cpp cleanup

  • Property mode set to 100644
File size: 1.2 KB
Line 
1#if !defined(WINFUNCS_H)
2#define WINFUNCS_H
3/* winFuncs.h
4   Definitions for missing math lib functions
5   Andrew Jackson, October 2007
6   */
7
8double fmax(double x, double y);
9//long double fmaxl (long double x, long double y);
10//float fmaxf (float x, float y);
11
12double fmin(double x, double y);
13
14double trunc(double x);
15//long double truncl(long double x);
16//float truncf(float x);
17
18double erf(double x);
19//long double erfl(long double x);
20//float erff (float x);
21//double erfc(double x);
22//long double erfcl(long double x);
23//float erfcf(float x;
24
25
26// Define INFINITY and NAN
27typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
28
29# if __BYTE_ORDER == __BIG_ENDIAN
30#  define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 }
31# endif
32# if __BYTE_ORDER == __LITTLE_ENDIAN
33#  define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f }
34# endif
35
36static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
37# define INFINITY  (__huge_valf.__f)
38
39
40# if __BYTE_ORDER == __BIG_ENDIAN
41#  define __nan_bytes   { 0x7f, 0xc0, 0, 0 }
42# endif
43# if __BYTE_ORDER == __LITTLE_ENDIAN
44#  define __nan_bytes   { 0, 0, 0xc0, 0x7f }
45# endif
46
47static union { unsigned char __c[4]; float __d; } __nan_union;
48# define NAN  (__nan_union.__d)
49
50#endif
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