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// Boost.Geometry (aka GGL, Generic Geometry Library)

// Unit Test

// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle

// Licensed under the Boost Software License version 1.0.

// http://www.boost.org/users/license.html

#ifndef BOOST_TEST_MODULE

#define BOOST_TEST_MODULE test_math_abs

#endif

#include <cmath>

#include <iostream>

#include <boost/test/included/unit_test.hpp>

#include <boost/config.hpp>

#include "number_types.hpp"

// important: the include above must precede the include below,

// otherwise the test will fail for the custom number type:

// custom_with_global_sqrt

#include <boost/geometry/util/math.hpp>

#include <boost/geometry/algorithms/not_implemented.hpp>

namespace bg = boost::geometry;

namespace bgm = boost::geometry::math;

template <typename T>

bool eq(T const& l, T const& r)

{

return !(l < r || r < l);

}

BOOST_AUTO_TEST_CASE( test_math_abs )

{

float p1 = bgm::pi<float>();

double p2 = bgm::pi<double>();

long double p3 = bgm::pi<long double>();

BOOST_CHECK(bgm::abs(p1) == p1);

BOOST_CHECK(bgm::abs(p2) == p2);

BOOST_CHECK(bgm::abs(p3) == p3);

float n1 = -p1;

double n2 = -p2;

long double n3 = -p3;

BOOST_CHECK(bgm::abs(n1) == p1);

BOOST_CHECK(bgm::abs(n2) == p2);

BOOST_CHECK(bgm::abs(n3) == p3);

}

{

number_types::custom<double> p1(bgm::pi<double>());

number_types::custom_with_global_sqrt<double> p2(bgm::pi<double>());

custom_global<double> p3(bgm::pi<double>());

custom_raw<double> p4(bgm::pi<double>());

BOOST_CHECK(eq(bgm::abs(p1), p1));

BOOST_CHECK(eq(bgm::abs(p2), p2));

BOOST_CHECK(eq(bgm::abs(p3), p3));

BOOST_CHECK(eq(bgm::abs(p4), p4));

number_types::custom<double> n1 = -p1;

number_types::custom_with_global_sqrt<double> n2 = -p2;

custom_global<double> n3 = -p3;

custom_raw<double> n4 = -p4;

BOOST_CHECK(eq(bgm::abs(n1), p1));

BOOST_CHECK(eq(bgm::abs(n2), p2));

BOOST_CHECK(eq(bgm::abs(n3), p3));

BOOST_CHECK(eq(bgm::abs(n4), p4));

}

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