1 ///////////////////////////////////////////////////////////////////////////
3 // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
6 // All rights reserved.
8 // Redistribution and use in source and binary forms, with or without
9 // modification, are permitted provided that the following conditions are
11 // * Redistributions of source code must retain the above copyright
12 // notice, this list of conditions and the following disclaimer.
13 // * Redistributions in binary form must reproduce the above
14 // copyright notice, this list of conditions and the following disclaimer
15 // in the documentation and/or other materials provided with the
17 // * Neither the name of Industrial Light & Magic nor the names of
18 // its contributors may be used to endorse or promote products derived
19 // from this software without specific prior written permission.
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 ///////////////////////////////////////////////////////////////////////////
37 #ifndef INCLUDED_IMATHPLATFORM_H
38 #define INCLUDED_IMATHPLATFORM_H
40 //----------------------------------------------------------------------------
44 // This file contains functions and constants which aren't
45 // provided by the system libraries, compilers, or includes on
47 //----------------------------------------------------------------------------
51 #if defined _WIN32 || defined _WIN64
53 #define M_PI 3.14159265358979323846
57 //-----------------------------------------------------------------------------
59 // Fixes for the "restrict" keyword. These #ifdef's for detecting
60 // compiler versions courtesy of Boost's select_compiler_config.hpp;
61 // here is the copyright notice for that file:
63 // (C) Copyright Boost.org 2001. Permission to copy, use, modify, sell and
64 // and distribute this software is granted provided this copyright notice
65 // appears in all copies. This software is provided "as is" without express
66 // or implied warranty, and with no claim as to its suitability for any
69 // Some compilers support "restrict", in which case we do nothing.
70 // Other compilers support some variant of it (e.g. "__restrict").
71 // If we don't know anything about the compiler, we define "restrict"
74 //-----------------------------------------------------------------------------
77 #if !defined(restrict)
78 #define restrict __restrict
81 #elif defined(__INTEL_COMPILER) || defined(__ICL) || defined(__ICC) || defined(__ECC)
82 // supports restrict, do nothing.
85 // supports restrict, do nothing.
92 #endif // INCLUDED_IMATHPLATFORM_H