+++ /dev/null
-///////////////////////////////////////////////////////////////////////////
-//
-// Copyright (c) 2002, 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_IMATHLIMITS_H
-#define INCLUDED_IMATHLIMITS_H
-
-//----------------------------------------------------------------
-//
-// Limitations of the basic C++ numerical data types
-//
-//----------------------------------------------------------------
-
-#include <float.h>
-#include <limits.h>
-
-//------------------------------------------
-// In Windows, min and max are macros. Yay.
-//------------------------------------------
-
-#if defined _WIN32 || defined _WIN64
- #ifdef min
- #undef min
- #endif
- #ifdef max
- #undef max
- #endif
-#endif
-
-namespace Imath {
-
-
-//-----------------------------------------------------------------
-//
-// Template class limits<T> returns information about the limits
-// of numerical data type T:
-//
-// min() largest possible negative value of type T
-//
-// max() largest possible positive value of type T
-//
-// smallest() smallest possible positive value of type T
-//
-// epsilon() smallest possible e of type T, for which
-// 1 + e != 1
-//
-// isIntegral() returns true if T is an integral type
-//
-// isSigned() returns true if T is signed
-//
-// Class limits<T> is useful to implement template classes or
-// functions which depend on the limits of a numerical type
-// which is not known in advance; for example:
-//
-// template <class T> max (T x[], int n)
-// {
-// T m = limits<T>::min();
-//
-// for (int i = 0; i < n; i++)
-// if (m < x[i])
-// m = x[i];
-//
-// return m;
-// }
-//
-// Class limits<T> has been implemented for the following types:
-//
-// char, signed char, unsigned char
-// short, unsigned short
-// int, unsigned int
-// long, unsigned long
-// float
-// double
-// long double
-//
-// Class limits<T> has only static member functions, all of which
-// are implemented as inlines. No objects of type limits<T> are
-// ever created.
-//
-//-----------------------------------------------------------------
-
-
-template <class T> struct limits
-{
- static T min();
- static T max();
- static T smallest();
- static T epsilon();
- static bool isIntegral();
- static bool isSigned();
-};
-
-
-//---------------
-// Implementation
-//---------------
-
-template <>
-struct limits <char>
-{
- static char min() {return CHAR_MIN;}
- static char max() {return CHAR_MAX;}
- static char smallest() {return 1;}
- static char epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return (char) ~0 < 0;}
-};
-
-template <>
-struct limits <signed char>
-{
- static signed char min() {return SCHAR_MIN;}
- static signed char max() {return SCHAR_MAX;}
- static signed char smallest() {return 1;}
- static signed char epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return true;}
-};
-
-template <>
-struct limits <unsigned char>
-{
- static unsigned char min() {return 0;}
- static unsigned char max() {return UCHAR_MAX;}
- static unsigned char smallest() {return 1;}
- static unsigned char epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return false;}
-};
-
-template <>
-struct limits <short>
-{
- static short min() {return SHRT_MIN;}
- static short max() {return SHRT_MAX;}
- static short smallest() {return 1;}
- static short epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return true;}
-};
-
-template <>
-struct limits <unsigned short>
-{
- static unsigned short min() {return 0;}
- static unsigned short max() {return USHRT_MAX;}
- static unsigned short smallest() {return 1;}
- static unsigned short epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return false;}
-};
-
-template <>
-struct limits <int>
-{
- static int min() {return INT_MIN;}
- static int max() {return INT_MAX;}
- static int smallest() {return 1;}
- static int epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return true;}
-};
-
-template <>
-struct limits <unsigned int>
-{
- static unsigned int min() {return 0;}
- static unsigned int max() {return UINT_MAX;}
- static unsigned int smallest() {return 1;}
- static unsigned int epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return false;}
-};
-
-template <>
-struct limits <long>
-{
- static long min() {return LONG_MIN;}
- static long max() {return LONG_MAX;}
- static long smallest() {return 1;}
- static long epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return true;}
-};
-
-template <>
-struct limits <unsigned long>
-{
- static unsigned long min() {return 0;}
- static unsigned long max() {return ULONG_MAX;}
- static unsigned long smallest() {return 1;}
- static unsigned long epsilon() {return 1;}
- static bool isIntegral() {return true;}
- static bool isSigned() {return false;}
-};
-
-template <>
-struct limits <float>
-{
- static float min() {return -FLT_MAX;}
- static float max() {return FLT_MAX;}
- static float smallest() {return FLT_MIN;}
- static float epsilon() {return FLT_EPSILON;}
- static bool isIntegral() {return false;}
- static bool isSigned() {return true;}
-};
-
-template <>
-struct limits <double>
-{
- static double min() {return -DBL_MAX;}
- static double max() {return DBL_MAX;}
- static double smallest() {return DBL_MIN;}
- static double epsilon() {return DBL_EPSILON;}
- static bool isIntegral() {return false;}
- static bool isSigned() {return true;}
-};
-
-template <>
-struct limits <long double>
-{
- static long double min() {return -LDBL_MAX;}
- static long double max() {return LDBL_MAX;}
- static long double smallest() {return LDBL_MIN;}
- static long double epsilon() {return LDBL_EPSILON;}
- static bool isIntegral() {return false;}
- static bool isSigned() {return true;}
-};
-
-
-} // namespace Imath
-
-#endif
projects / opencv / blobdiff