用于EagleEye3.0 规则集漏报和误报测试的示例项目,项目收集于github和gitee
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// Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0,
// as published by the Free Software Foundation.
//
// This program is also distributed with certain software (including
// but not limited to OpenSSL) that is licensed under separate terms,
// as designated in a particular file or component or in included license
// documentation. The authors of MySQL hereby grant you an additional
// permission to link the program and your derivative works with the
// separately licensed software that they have included with MySQL.
//
// This program 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 General Public License, version 2.0, for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
/// @file
///
/// This file implements the distance function.
#include "sql/gis/distance.h"
#include "sql/gis/distance_functor.h"
#include <cmath> // std::isfinite
#include "sql/sql_exception_handler.h" // handle_gis_exception
#include "my_inttypes.h" // MYF
#include "my_sys.h" // my_error
#include "mysqld_error.h" // Error codes
namespace gis {
bool distance(const dd::Spatial_reference_system *srs, const Geometry *g1,
const Geometry *g2, double *distance, bool *is_null) noexcept {
try {
DBUG_ASSERT(g1->coordinate_system() == g2->coordinate_system());
DBUG_ASSERT(srs == nullptr ||
((srs->is_cartesian() &&
g1->coordinate_system() == Coordinate_system::kCartesian) ||
(srs->is_geographic() &&
g1->coordinate_system() == Coordinate_system::kGeographic)));
if ((*is_null = (g1->is_empty() || g2->is_empty()))) return false;
Distance dist(srs ? srs->semi_major_axis() : 0.0,
srs ? srs->semi_minor_axis() : 0.0);
*distance = dist(g1, g2);
} catch (...) {
handle_gis_exception("st_distance");
return true;
}
if (!std::isfinite(*distance) || *distance < 0.0) {
my_error(ER_GIS_INVALID_DATA, MYF(0), "st_distance");
return true;
}
return false;
}
} // namespace gis