mirror of https://github.com/CGAL/cgal
160 lines
4.3 KiB
C++
160 lines
4.3 KiB
C++
// Copyright (c) 2003 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you may redistribute it under
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// the terms of the Q Public License version 1.0.
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// See the file LICENSE.QPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Menelaos Karavelas <mkaravel@cse.nd.edu>
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#ifndef CGAL_COMPARATOR_PROFILER_H
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#define CGAL_COMPARATOR_PROFILER_H
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CGAL_BEGIN_NAMESPACE
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class comparator_profiler
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{
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public:
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static bool count_cases;
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static unsigned long case_1_counter;
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static unsigned long case_2_counter;
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static unsigned long case_3a_Jpos_counter;
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static unsigned long case_3a_Jneg_counter;
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static unsigned long case_3b_Jpos_counter;
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static unsigned long case_3b_Jneg_counter;
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static unsigned long case_4_counter;
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static unsigned long case_5_counter;
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static unsigned long case_degenerate_counter;
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public:
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static unsigned long counter_rr;
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static unsigned long counter_rr_p3inf;
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static unsigned long counter_rr_p4;
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static unsigned long counter_rr_e;
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static unsigned long counter_rr_r0;
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// static unsigned long counter_rr_jneg;
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static void reset()
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{
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count_cases = false;
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case_1_counter = 0;
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case_2_counter = 0;
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case_3a_Jpos_counter = 0;
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case_3a_Jneg_counter = 0;
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case_3b_Jpos_counter = 0;
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case_3b_Jneg_counter = 0;
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case_4_counter = 0;
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case_5_counter = 0;
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case_degenerate_counter = 0;
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counter_rr = 0;
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counter_rr_p3inf = 0;
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counter_rr_p4 = 0;
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counter_rr_e = 0;
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counter_rr_r0 = 0;
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// counter_rr_jneg = 0;
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}
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template< class FT >
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static void count_case(const FT& a1, const FT& b1, const FT& c1,
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const FT& a2, const FT& b2, const FT& c2)
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{
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// works correctly only with leda_real
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FT D1 = CGAL::square(b1) - a1 * c1;
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FT l1 = (b1 - CGAL::sqrt(D1)) / a1;
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FT r1 = (b1 + CGAL::sqrt(D1)) / a1;
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if ( a1 < 0 ) { std::swap(r1, l1); }
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FT D2 = CGAL::square(b2) - a2 * c2;
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if ( D1 == 0 || D2 == 0 ) {
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case_degenerate_counter++;
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return;
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}
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FT l2 = (b2 - CGAL::sqrt(D2)) / a2;
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FT r2 = (b2 + CGAL::sqrt(D2)) / a2;
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if ( a2 < 0 ) { std::swap(r2, l2); }
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if ( l1 < l2 ) {
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if ( r1 > r2 ) {
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FT J = a1 * b2 - a2 * b1;
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if ( J > 0 ) {
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case_3b_Jpos_counter++;
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} else if ( J < 0 ) {
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case_3b_Jneg_counter++;
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} else {
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case_degenerate_counter++;
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}
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} else if ( r1 < r2 ) {
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if ( r1 < l2 ) {
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case_5_counter++;
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} else if ( r1 > l2 ) {
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case_4_counter++;
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} else {
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case_degenerate_counter++;
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}
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} else {
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case_degenerate_counter++;
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}
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} else if ( l1 > l2 ) {
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if ( r1 < r2 ) {
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FT J = a1 * b2 - a2 * b1;
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if ( J > 0 ) {
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case_3a_Jpos_counter++;
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} else if ( J < 0 ) {
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case_3a_Jneg_counter++;
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} else {
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case_degenerate_counter++;
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}
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} else if ( r1 > r2 ) {
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if ( l1 < r2 ) {
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case_2_counter++;
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} else if ( l1 > r2 ) {
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case_1_counter++;
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} else {
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case_degenerate_counter++;
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}
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} else {
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case_degenerate_counter++;
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}
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} else {
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case_degenerate_counter++;
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}
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}
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};
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bool comparator_profiler::count_cases = false;
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unsigned long comparator_profiler::case_1_counter = 0;
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unsigned long comparator_profiler::case_2_counter = 0;
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unsigned long comparator_profiler::case_3a_Jpos_counter = 0;
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unsigned long comparator_profiler::case_3a_Jneg_counter = 0;
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unsigned long comparator_profiler::case_3b_Jpos_counter = 0;
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unsigned long comparator_profiler::case_3b_Jneg_counter = 0;
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unsigned long comparator_profiler::case_4_counter = 0;
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unsigned long comparator_profiler::case_5_counter = 0;
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unsigned long comparator_profiler::case_degenerate_counter = 0;
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unsigned long comparator_profiler::counter_rr = 0;
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unsigned long comparator_profiler::counter_rr_p3inf = 0;
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unsigned long comparator_profiler::counter_rr_p4 = 0;
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unsigned long comparator_profiler::counter_rr_e = 0;
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unsigned long comparator_profiler::counter_rr_r0 = 0;
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//unsigned long comparator_profiler::counter_rr_jneg = 0;
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CGAL_END_NAMESPACE
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#endif // CGAL_COMPARATOR_PROFILER_H
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