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comparison packages/language/c/libm/current/src/misc/infconst.c @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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children 443894e2e912
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-1:000000000000 0:3111d98ba7b3
1 //===========================================================================
2 //
3 // infconst.c
4 //
5 // Infinity constant
6 //
7 //===========================================================================
8 //####COPYRIGHTBEGIN####
9 //
10 // -------------------------------------------
11 // The contents of this file are subject to the Cygnus eCos Public License
12 // Version 1.0 (the "License"); you may not use this file except in
13 // compliance with the License. You may obtain a copy of the License at
14 // http://sourceware.cygnus.com/ecos
15 //
16 // Software distributed under the License is distributed on an "AS IS"
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
18 // License for the specific language governing rights and limitations under
19 // the License.
20 //
21 // The Original Code is eCos - Embedded Cygnus Operating System, released
22 // September 30, 1998.
23 //
24 // The Initial Developer of the Original Code is Cygnus. Portions created
25 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
26 // -------------------------------------------
27 //
28 //####COPYRIGHTEND####
29 //===========================================================================
30 //#####DESCRIPTIONBEGIN####
31 //
32 // Author(s): jlarmour@cygnus.co.uk
33 // Contributors: jlarmour@cygnus.co.uk
34 // Date: 1998-02-13
35 // Purpose:
36 // Description: Defines a constant cyg_libm_infinity so that we can define
37 // HUGE_VAL
38 // Usage:
39 //
40 //####DESCRIPTIONEND####
41 //
42 //===========================================================================
43
44 // CONFIGURATION
45
46 #include <pkgconf/libm.h> // Configuration header
47
48 // Include the Math library?
49 #ifdef CYGPKG_LIBM
50
51 // INCLUDES
52
53 #include <cyg/infra/cyg_type.h> // Common type definitions and support
54 // including endian-ness
55 #include <math.h> // Main header for math library
56 #include <sys/ieeefp.h> // Cyg_libm_ieee_double_shape_type
57
58
59 // GLOBALS
60
61 #if (CYG_BYTEORDER == CYG_MSBFIRST) // Big endian
62
63 const Cyg_libm_ieee_double_shape_type cyg_libm_infinity = { {0x7ff00000, 0} };
64
65 #else // Little endian
66
67 const Cyg_libm_ieee_double_shape_type cyg_libm_infinity = { {0, 0x7ff00000} };
68
69 #endif
70
71 #endif // ifdef CYGPKG_LIBM
72
73 // EOF infconst.c