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// Copyright (c) 2008 GeometryFactory (France)
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org)
//
// $URL: https://github.com/CGAL/cgal/blob/v6.1.1/Number_types/include/CGAL/test_FPU_rounding_mode_impl.h $
// $Id: include/CGAL/test_FPU_rounding_mode_impl.h 08b27d3db14 $
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s) : Laurent Rineau
#ifdef CGAL_HEADER_ONLY
#define CGAL_INLINE_FUNCTION inline
#else
#define CGAL_INLINE_FUNCTION
#endif
#ifndef CGAL_NDEBUG
#include <CGAL/assertions.h>
namespace CGAL {
struct Check_FPU_rounding_mode_is_restored {
FPU_CW_t mode;
Check_FPU_rounding_mode_is_restored()
: mode( FPU_get_cw()) {}
~Check_FPU_rounding_mode_is_restored()
{
CGAL_assertion_msg( FPU_get_cw() == mode,
"The default FPU rounding mode has not been restored "
"before the exit of the program. "
"That may be a bug in some CGAL kernel code.");
}
};
#ifdef CGAL_HEADER_ONLY
inline const Check_FPU_rounding_mode_is_restored&
get_static_check_fpu_rounding_mode_is_restored()
{
// A static object that emits a warning if the rounding mode at the
// beginning and the end of the program are not the same.
// Note that the get_static_check_fpu_rounding_mode_is_restored() function
// must be called at least once so that this object is created.
// It is done in the FPU_set_cw() function in FPU.h
static const Check_FPU_rounding_mode_is_restored check_fpu_rounding_mode_is_restored;
return check_fpu_rounding_mode_is_restored;
}
#ifndef CGAL_DISABLE_ROUNDING_MATH_CHECK
namespace {
CGAL_UNUSED const Check_FPU_rounding_mode_is_restored &
check_fpu_rounding_mode_is_restored
= get_static_check_fpu_rounding_mode_is_restored();
}
#endif
#else
// A global object that emits a warning if the rounding mode at the
// beginning and the end of the program are not the same.
static const Check_FPU_rounding_mode_is_restored check_fpu_rounding_mode_is_restored;
#endif // CGAL_HEADER_ONLY
} // end namespace CGAL
#endif // #ifnedef CGAL_NDEBUG
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