/usr/include/SFCGAL/numeric.h is in libsfcgal-dev 1.3.0-4+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | /**
* SFCGAL
*
* Copyright (C) 2012-2013 Oslandia <infos@oslandia.com>
* Copyright (C) 2012-2013 IGN (http://www.ign.fr)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SFCGAL_NUMERIC_H_
#define _SFCGAL_NUMERIC_H_
#include <limits>
#include <cmath>
#include <SFCGAL/export.h>
#include <SFCGAL/Kernel.h>
namespace SFCGAL {
/**
* shortcut to get NaN for double
*/
inline double NaN()
{
return std::numeric_limits< double >::quiet_NaN();
}
/**
* shortcut to test NaN for double
*/
inline bool isNaN( const double& value )
{
return value != value ;
}
/**
* @brief round a double to the nearest integer
*/
inline double round( const double& v )
{
if ( v < 0.0 ) {
return ::ceil( v - 0.5 ) ;
}
else {
return ::floor( v + 0.5 ) ;
}
}
/**
* @brief floor a rational to an integer
*/
SFCGAL_API CGAL::Gmpz floor( const CGAL::Gmpq& v ) ;
/**
* @brief ceil a rational to an integer
*/
SFCGAL_API CGAL::Gmpz ceil( const CGAL::Gmpq& v ) ;
/**
* @brief round a rational to an integer
*/
SFCGAL_API CGAL::Gmpz round( const CGAL::Gmpq& v ) ;
}//SFCGAL
#endif
|