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10/28/2024 06:50:42 AM
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Iex.h
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04/16/2016 12:51:59 AM
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IexBaseExc.h
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IexErrnoExc.h
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IexExport.h
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IexForward.h
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IexMacros.h
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IexMathExc.h
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IexMathFloatExc.h
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IexMathFpu.h
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IexMathIeeeExc.h
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IexNamespace.h
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IexThrowErrnoExc.h
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IlmBaseConfig.h
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IlmThread.h
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IlmThreadExport.h
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IlmThreadForward.h
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IlmThreadMutex.h
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IlmThreadNamespace.h
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IlmThreadPool.h
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IlmThreadSemaphore.h
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ImathBox.h
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ImathBoxAlgo.h
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ImathColor.h
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ImathColorAlgo.h
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ImathEuler.h
22.88 KB
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ImathExc.h
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ImathExport.h
2.13 KB
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ImathForward.h
2.68 KB
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ImathFrame.h
6.6 KB
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ImathFrustum.h
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ImathFrustumTest.h
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ImathFun.h
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ImathGL.h
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ImathGLU.h
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ImathHalfLimits.h
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ImathInt64.h
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ImathInterval.h
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ImathLimits.h
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ImathLine.h
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ImathLineAlgo.h
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ImathMath.h
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ImathMatrix.h
82.42 KB
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ImathMatrixAlgo.h
37.97 KB
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ImathNamespace.h
4.38 KB
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ImathPlane.h
6.75 KB
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ImathPlatform.h
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ImathQuat.h
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ImathRandom.h
9.84 KB
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ImathRoots.h
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ImathShear.h
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ImathSphere.h
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ImathVec.h
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ImathVecAlgo.h
4.64 KB
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ImfAcesFile.h
10.27 KB
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ImfArray.h
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ImfAttribute.h
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ImfB44Compressor.h
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ImfBoxAttribute.h
3.1 KB
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ImfCRgbaFile.h
12.5 KB
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ImfChannelList.h
11.2 KB
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ImfChannelListAttribute.h
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ImfChromaticities.h
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ImfChromaticitiesAttribute.h
2.74 KB
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ImfCompositeDeepScanLine.h
5.38 KB
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ImfCompression.h
3.25 KB
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ImfCompressionAttribute.h
2.71 KB
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ImfConvert.h
3.39 KB
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ImfDeepCompositing.h
5.97 KB
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ImfDeepFrameBuffer.h
8.79 KB
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ImfDeepImageState.h
3.67 KB
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ImfDeepImageStateAttribute.h
2.64 KB
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ImfDeepScanLineInputFile.h
11.01 KB
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ImfDeepScanLineInputPart.h
6.9 KB
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ImfDeepScanLineOutputFile.h
9.37 KB
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ImfDeepScanLineOutputPart.h
6.41 KB
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ImfDeepTiledInputFile.h
16.08 KB
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ImfDeepTiledInputPart.h
13.27 KB
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ImfDeepTiledOutputFile.h
18.1 KB
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ImfDeepTiledOutputPart.h
14.83 KB
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ImfDoubleAttribute.h
2.29 KB
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ImfEnvmap.h
11.29 KB
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ImfEnvmapAttribute.h
2.67 KB
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ImfExport.h
2.11 KB
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ImfFloatAttribute.h
2.26 KB
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ImfForward.h
3.48 KB
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ImfFrameBuffer.h
11.18 KB
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ImfFramesPerSecond.h
3.79 KB
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ImfGenericInputFile.h
2.26 KB
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ImfGenericOutputFile.h
2.44 KB
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ImfHeader.h
19.27 KB
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ImfHuf.h
2.86 KB
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ImfIO.h
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ImfInputFile.h
8.28 KB
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ImfInputPart.h
3.52 KB
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ImfInt64.h
2.24 KB
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ImfIntAttribute.h
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ImfKeyCode.h
4.9 KB
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ImfKeyCodeAttribute.h
2.65 KB
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ImfLineOrder.h
2.42 KB
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ImfLineOrderAttribute.h
2.67 KB
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ImfLut.h
5.12 KB
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ImfMatrixAttribute.h
3.65 KB
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ImfMisc.h
16.33 KB
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ImfMultiPartInputFile.h
3.94 KB
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ImfMultiPartOutputFile.h
4.29 KB
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ImfMultiView.h
6.29 KB
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ImfName.h
3.52 KB
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ImfNamespace.h
4.46 KB
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ImfOpaqueAttribute.h
3.55 KB
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ImfOutputFile.h
9.66 KB
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ImfOutputPart.h
3.04 KB
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ImfPartHelper.h
7.66 KB
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ImfPartType.h
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ImfPixelType.h
2.34 KB
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ImfPreviewImage.h
4.65 KB
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ImfPreviewImageAttribute.h
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ImfRational.h
3.17 KB
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ImfRationalAttribute.h
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ImfRgba.h
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ImfRgbaFile.h
13.09 KB
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ImfRgbaYca.h
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ImfStandardAttributes.h
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ImfStringAttribute.h
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ImfStringVectorAttribute.h
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ImfTestFile.h
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ImfThreading.h
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ImfTileDescription.h
3.13 KB
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ImfTileDescriptionAttribute.h
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ImfTiledInputFile.h
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ImfTiledInputPart.h
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ImfTiledOutputFile.h
17.83 KB
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ImfTiledOutputPart.h
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ImfTiledRgbaFile.h
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ImfTimeCode.h
7 KB
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ImfTimeCodeAttribute.h
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ImfVecAttribute.h
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ImfVersion.h
4.64 KB
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ImfWav.h
2.73 KB
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ImfXdr.h
18.74 KB
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OpenEXRConfig.h
1.8 KB
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half.h
17.22 KB
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halfExport.h
757 bytes
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halfFunction.h
4.83 KB
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halfLimits.h
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Editing: ImathFun.h
Close
/////////////////////////////////////////////////////////////////////////// // // Copyright (c) 2002-2012, Industrial Light & Magic, a division of Lucas // Digital Ltd. LLC // // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Industrial Light & Magic nor the names of // its contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // /////////////////////////////////////////////////////////////////////////// #ifndef INCLUDED_IMATHFUN_H #define INCLUDED_IMATHFUN_H //----------------------------------------------------------------------------- // // Miscellaneous utility functions // //----------------------------------------------------------------------------- #include "ImathExport.h" #include "ImathLimits.h" #include "ImathInt64.h" #include "ImathNamespace.h" IMATH_INTERNAL_NAMESPACE_HEADER_ENTER template <class T> inline T abs (T a) { return (a > T(0)) ? a : -a; } template <class T> inline int sign (T a) { return (a > T(0))? 1 : ((a < T(0)) ? -1 : 0); } template <class T, class Q> inline T lerp (T a, T b, Q t) { return (T) (a * (1 - t) + b * t); } template <class T, class Q> inline T ulerp (T a, T b, Q t) { return (T) ((a > b)? (a - (a - b) * t): (a + (b - a) * t)); } template <class T> inline T lerpfactor(T m, T a, T b) { // // Return how far m is between a and b, that is return t such that // if: // t = lerpfactor(m, a, b); // then: // m = lerp(a, b, t); // // If a==b, return 0. // T d = b - a; T n = m - a; if (abs(d) > T(1) || abs(n) < limits<T>::max() * abs(d)) return n / d; return T(0); } template <class T> inline T clamp (T a, T l, T h) { return (a < l)? l : ((a > h)? h : a); } template <class T> inline int cmp (T a, T b) { return IMATH_INTERNAL_NAMESPACE::sign (a - b); } template <class T> inline int cmpt (T a, T b, T t) { return (IMATH_INTERNAL_NAMESPACE::abs (a - b) <= t)? 0 : cmp (a, b); } template <class T> inline bool iszero (T a, T t) { return (IMATH_INTERNAL_NAMESPACE::abs (a) <= t) ? 1 : 0; } template <class T1, class T2, class T3> inline bool equal (T1 a, T2 b, T3 t) { return IMATH_INTERNAL_NAMESPACE::abs (a - b) <= t; } template <class T> inline int floor (T x) { return (x >= 0)? int (x): -(int (-x) + (-x > int (-x))); } template <class T> inline int ceil (T x) { return -floor (-x); } template <class T> inline int trunc (T x) { return (x >= 0) ? int(x) : -int(-x); } // // Integer division and remainder where the // remainder of x/y has the same sign as x: // // divs(x,y) == (abs(x) / abs(y)) * (sign(x) * sign(y)) // mods(x,y) == x - y * divs(x,y) // inline int divs (int x, int y) { return (x >= 0)? ((y >= 0)? ( x / y): -( x / -y)): ((y >= 0)? -(-x / y): (-x / -y)); } inline int mods (int x, int y) { return (x >= 0)? ((y >= 0)? ( x % y): ( x % -y)): ((y >= 0)? -(-x % y): -(-x % -y)); } // // Integer division and remainder where the // remainder of x/y is always positive: // // divp(x,y) == floor (double(x) / double (y)) // modp(x,y) == x - y * divp(x,y) // inline int divp (int x, int y) { return (x >= 0)? ((y >= 0)? ( x / y): -( x / -y)): ((y >= 0)? -((y-1-x) / y): ((-y-1-x) / -y)); } inline int modp (int x, int y) { return x - y * divp (x, y); } //---------------------------------------------------------- // Successor and predecessor for floating-point numbers: // // succf(f) returns float(f+e), where e is the smallest // positive number such that float(f+e) != f. // // predf(f) returns float(f-e), where e is the smallest // positive number such that float(f-e) != f. // // succd(d) returns double(d+e), where e is the smallest // positive number such that double(d+e) != d. // // predd(d) returns double(d-e), where e is the smallest // positive number such that double(d-e) != d. // // Exceptions: If the input value is an infinity or a nan, // succf(), predf(), succd(), and predd() all // return the input value without changing it. // //---------------------------------------------------------- IMATH_EXPORT float succf (float f); IMATH_EXPORT float predf (float f); IMATH_EXPORT double succd (double d); IMATH_EXPORT double predd (double d); // // Return true if the number is not a NaN or Infinity. // inline bool finitef (float f) { union {float f; int i;} u; u.f = f; return (u.i & 0x7f800000) != 0x7f800000; } inline bool finited (double d) { union {double d; Int64 i;} u; u.d = d; return (u.i & 0x7ff0000000000000LL) != 0x7ff0000000000000LL; } IMATH_INTERNAL_NAMESPACE_HEADER_EXIT #endif // INCLUDED_IMATHFUN_H