00001 /*
00002 File: VLConstants.h
00003
00004 Function: Contains various constants for VL.
00005
00006 Author: Andrew Willmott
00007
00008 Copyright: (c) 1999-2000, Andrew Willmott
00009 */
00010
00011 #ifndef __VLConstants__
00012 #define __VLConstants__
00013
00014 #include <math.h>
00015
00016
00017 // --- Mathematical constants -------------------------------------------------
00018
00019
00020 #ifdef M_PI
00021 const Real vl_pi = M_PI;
00022 const Real vl_halfPi = M_PI_2;
00023 #elif defined(_PI)
00024 const Real vl_pi = _PI;
00025 const Real vl_halfPi = vl_pi / 2.0;
00026 #else
00027 const Real vl_pi = 3.14159265358979323846;
00028 const Real vl_halfPi = vl_pi / 2.0;
00029 #endif
00030
00031 #ifdef HUGE_VAL
00032 const Double vl_inf = HUGE_VAL;
00033 #endif
00034
00035 enum ZeroOrOne { vl_zero = 0, vl_0 = 0, vl_one = 1, vl_I = 1, vl_1 = 1 };
00036 enum Block { vl_Z = 0, vl_B = 1, vl_block = 1 };
00037 enum Axis { vl_x, vl_y, vl_z, vl_w };
00038 typedef Axis vl_axis;
00039
00040 const UInt32 VL_REF_FLAG = UInt32(1) << (sizeof(UInt32) * 8 - 1);
00041 const UInt32 VL_REF_MASK = (~VL_REF_FLAG);
00042 enum { VL_SV_END = -1 };
00043 const UInt32 VL_SV_MAX_INDEX = (1 << 30);
00044 const Int VL_MAX_STEPS = 10000;
00045
00046 #endif
