gctl_examples/examples/heap_sort_ex.cpp
2024-09-10 20:19:20 +08:00

85 lines
3.0 KiB
C++

/********************************************************
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* ╚═════╝ ╚═════╝ ╚═╝ ╚══════╝
* Geophysical Computational Tools & Library (GCTL)
*
* Copyright (c) 2022 Yi Zhang (yizhang-geo@zju.edu.cn)
*
* GCTL is distributed under a dual licensing scheme. 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 2
* of the License, or (at your option) any later version. You should have
* received a copy of the GNU Lesser General Public License along with this
* program. If not, see <http://www.gnu.org/licenses/>.
*
* If the terms and conditions of the LGPL v.2. would prevent you from using
* the GCTL, please consider the option to obtain a commercial license for a
* fee. These licenses are offered by the GCTL's original author. As a rule,
* licenses are provided "as-is", unlimited in time for a one time fee. Please
* send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget
* to include some description of your company and the realm of its activities.
* Also add information on how to contact you by electronic and paper mail.
******************************************************/
#include "gctl/core.h"
#include "gctl/algorithm.h"
#include "gctl/geometry.h"
#include "gctl/utility.h"
#include "iostream"
int main(int argc, char const *argv[])
{
// declare a sort operator for double
gctl::heap_sort<double> double_sorter;
// test double_sorter
int a_size = 10;
double *A = new double [a_size];
for (int i = 0; i < 10; i++)
{
A[i] = i + 1.0;
std::cout << A[i] << " ";
}
std::cout << std::endl;
// sort as a descending array
double_sorter.execute(A, a_size, [](double *a, int l_id, int r_id)->bool{
if (a[l_id] > a[r_id]) return true;
else return false;
});
for (int i = 0; i < 10; i++)
std::cout << A[i] << " ";
std::cout << std::endl;
delete[] A;
// declare a sort operator for point3dc
gctl::heap_sort<gctl::point3dc> p3d_sorter;
gctl::array<gctl::point3dc> line_ps;
gctl::linespace(gctl::point3dc(10,11,12), gctl::point3dc(0,0,0), 11, line_ps);
for (int i = 0; i < line_ps.size(); i++)
{
std::cout << line_ps.at(i).x << " " << line_ps.at(i).y << " " << line_ps.at(i).z << std::endl;
}
// sort as an ascending array according y values
p3d_sorter.execute(line_ps, [](gctl::array<gctl::point3dc> &a, int l_id, int r_id)->bool
{
if (a[l_id].y < a[r_id].y) return true;
else return false;
});
for (int i = 0; i < line_ps.size(); i++)
{
std::cout << line_ps.at(i).x << " " << line_ps.at(i).y << " " << line_ps.at(i).z << std::endl;
}
return 0;
}