/usr/include/CGAL/FPU_extension.h is in libcgal-dev 4.11-2build1.
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 | // Copyright (c) 2010-2011 GeometryFactory Sarl (France)
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// $URL$
// $Id$
//
//
// Author(s) : Laurent Rineau
// The main goal of FPU.h is to define functions or macros to modify the
// control word of the FPU, to:
// - set the precision to 53 bits of mantissa,
// - get/set the rounding mode.
//
// The goal of FPU_extension.h is to define inline functions similar to
// feclearexcept and fetestexcept of C99.
//
// For the moment, only i386 and x64 processors are supported, with MSVC,
// gcc, or the Intel compiler suite. Otherwise, the non-inline functions of
// C99 are used.
#ifndef CGAL_FPU_EXTENSION_H
#define CGAL_FPU_EXTENSION_H
#if __i386__ && !defined __PGI && !defined __SUNPRO_CC
# ifdef CGAL_SAFE_SSE2
# include <CGAL/FPU_gcc_i386_sse2.h>
# else
# include <CGAL/FPU_gcc_i386.h>
# endif
#elif defined _MSC_VER
# include <CGAL/FPU_msvc.h>
#else
// generic functions, using C99
extern "C" {
# include <fenv.h>
}
namespace CGAL {
inline int
feclearexcept(int exceptions) {
return ::feclearexcept(exceptions);
}
inline int
fetestexcept(int exceptions) {
return ::fetestexcept(exceptions);
}
} // end namespace CGAL
#endif // use fenv
#endif // CGAL_FPU_EXTENSION_H
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