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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 18:24:20 +0000
commit483eb2f56657e8e7f419ab1a4fab8dce9ade8609 (patch)
treee5d88d25d870d5dedacb6bbdbe2a966086a0a5cf /src/boost/libs/multiprecision/test/test_mpfi.cpp
parentInitial commit. (diff)
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Adding upstream version 14.2.21.upstream/14.2.21upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/multiprecision/test/test_mpfi.cpp')
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diff --git a/src/boost/libs/multiprecision/test/test_mpfi.cpp b/src/boost/libs/multiprecision/test/test_mpfi.cpp
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+///////////////////////////////////////////////////////////////
+// Copyright 2012 John Maddock. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
+
+#ifdef _MSC_VER
+#define _SCL_SECURE_NO_WARNINGS
+#endif
+
+#include "test.hpp"
+#include <boost/multiprecision/mpfi.hpp>
+#include <boost/multiprecision/random.hpp>
+
+using namespace boost::multiprecision;
+using namespace boost::random;
+
+void test_exp()
+{
+ std::cout << "Testing exp\n";
+
+ mpfr_float_50 val = 1.25;
+
+ for (unsigned i = 0; i < 2000; ++i)
+ {
+ mpfr_float_100 a(val);
+ mpfr_float_100 b = exp(a);
+ mpfi_float_50 in = val;
+ in = exp(in);
+ BOOST_CHECK((boost::math::isfinite)(in));
+ BOOST_CHECK(lower(in) <= b);
+ BOOST_CHECK(upper(in) >= b);
+ b = log(a);
+ in = val;
+ in = log(in);
+ BOOST_CHECK((boost::math::isfinite)(in));
+ BOOST_CHECK(lower(in) <= b);
+ BOOST_CHECK(upper(in) >= b);
+ val *= 1.01;
+ }
+ val = 1;
+ for (unsigned i = 0; i < 2000; ++i)
+ {
+ mpfr_float_100 a(val);
+ mpfr_float_100 b = exp(a);
+ mpfi_float_50 in = val;
+ in = exp(in);
+ BOOST_CHECK((boost::math::isfinite)(in));
+ BOOST_CHECK(lower(in) <= b);
+ BOOST_CHECK(upper(in) >= b);
+ b = log(a);
+ in = val;
+ in = log(in);
+ BOOST_CHECK((boost::math::isfinite)(in));
+ BOOST_CHECK(lower(in) <= b);
+ BOOST_CHECK(upper(in) >= b);
+ val /= 1.01;
+ }
+}
+
+void test_pow()
+{
+ std::cout << "Testing pow function\n";
+
+ mt19937 gen;
+ uniform_real_distribution<mpfr_float_50> dist1(0, 400);
+
+ for (unsigned i = 0; i < 5000; ++i)
+ {
+ mpfr_float_50 base, p;
+ base = dist1(gen);
+ p = dist1(gen);
+ mpfr_float_100 a, b, r;
+ a = base;
+ b = p;
+ r = pow(a, b);
+ mpfi_float_50 ai, bi, ri;
+ ai = base;
+ bi = p;
+ ri = pow(ai, bi);
+ BOOST_CHECK((boost::math::isfinite)(ri));
+ BOOST_CHECK(lower(ri) <= r);
+ BOOST_CHECK(upper(ri) >= r);
+ }
+}
+
+void test_trig()
+{
+ std::cout << "Testing trig functions\n";
+
+ mt19937 gen;
+ uniform_real_distribution<mpfr_float_50> dist1(-1.57079632679, 1.57079632679);
+ uniform_real_distribution<mpfr_float_50> dist2(-1, 1);
+
+ for (unsigned i = 0; i < 5000; ++i)
+ {
+ mpfr_float_50 val;
+ val = dist1(gen);
+ mpfr_float_100 a = val;
+ mpfr_float_100 b = sin(a);
+ mpfi_float_50 a2 = val;
+ mpfi_float_50 b2 = sin(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ b = cos(a);
+ b2 = cos(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ b = tan(a);
+ b2 = tan(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ }
+ for (unsigned i = 0; i < 5000; ++i)
+ {
+ mpfr_float_50 val;
+ val = dist2(gen);
+ mpfr_float_100 a = val;
+ mpfr_float_100 b = asin(a);
+ mpfi_float_50 a2 = val;
+ mpfi_float_50 b2 = asin(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ b = acos(a);
+ b2 = acos(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ b = atan(a);
+ b2 = atan(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ }
+}
+
+void test_hyp()
+{
+ std::cout << "Testing hyperbolic trig functions\n";
+
+ mt19937 gen;
+ uniform_real_distribution<mpfr_float_50> dist1(-10, 10);
+ uniform_real_distribution<mpfr_float_50> dist2(-1, 1);
+
+ for (unsigned i = 0; i < 5000; ++i)
+ {
+ mpfr_float_50 val;
+ val = dist1(gen);
+ mpfr_float_100 a = val;
+ mpfr_float_100 b = sinh(a);
+ mpfi_float_50 a2 = val;
+ mpfi_float_50 b2 = sinh(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ b = cosh(a);
+ b2 = cosh(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ b = tanh(a);
+ b2 = tanh(a2);
+ BOOST_CHECK((boost::math::isfinite)(b2));
+ BOOST_CHECK(lower(b2) <= b);
+ BOOST_CHECK(upper(b2) >= b);
+ }
+}
+
+void test_intervals()
+{
+ mpfi_float_50 a(1, 2);
+ mpfi_float_50 b(1.5, 2.5);
+ BOOST_CHECK_EQUAL(lower(a), 1);
+ BOOST_CHECK_EQUAL(upper(a), 2);
+ BOOST_CHECK_EQUAL(median(a), 1.5);
+ BOOST_CHECK_EQUAL(width(a), 1);
+ mpfi_float_50 r = intersect(a, b);
+ BOOST_CHECK_EQUAL(lower(r), 1.5);
+ BOOST_CHECK_EQUAL(upper(r), 2);
+ r = hull(a, b);
+ BOOST_CHECK_EQUAL(lower(r), 1);
+ BOOST_CHECK_EQUAL(upper(r), 2.5);
+ BOOST_CHECK(overlap(a, b));
+ BOOST_CHECK(in(mpfr_float_50(1.5), a));
+ BOOST_CHECK(in(mpfr_float_50(1), a));
+ BOOST_CHECK(in(mpfr_float_50(2), a));
+ BOOST_CHECK(!zero_in(a));
+ b = mpfi_float_50(1.5, 1.75);
+ BOOST_CHECK(subset(b, a));
+ BOOST_CHECK(proper_subset(b, a));
+ BOOST_CHECK(!empty(a));
+ BOOST_CHECK(!singleton(a));
+ b = mpfi_float_50(5, 6);
+ r = intersect(a, b);
+ BOOST_CHECK(empty(r));
+}
+
+#ifdef TEST_SPECIAL
+#include "math/table_type.hpp"
+#include <boost/math/special_functions.hpp>
+
+#define T mpfi_float_50
+
+typedef number<mpfi_float_backend<25> > mpfi_float_25;
+
+void test_log1p_expm1()
+{
+#include "../../math/test/log1p_expm1_data.ipp"
+
+ std::cout << std::setprecision(std::numeric_limits<mpfi_float_25>::max_digits10);
+ std::cout << "Testing log1p and expm1\n";
+
+ for (unsigned i = 0; i < log1p_expm1_data.size(); ++i)
+ {
+ mpfi_float_25 in(log1p_expm1_data[i][0]);
+ mpfi_float_25 out = boost::math::log1p(in);
+ mpfi_float_25 expected(log1p_expm1_data[i][1]);
+ if (!subset(expected, out))
+ {
+ std::cout << in << std::endl;
+ std::cout << out << std::endl;
+ std::cout << expected << std::endl;
+ BOOST_CHECK(lower(out) <= lower(expected));
+ BOOST_CHECK(upper(out) >= upper(expected));
+ }
+ out = boost::math::expm1(in);
+ expected = mpfi_float_25(log1p_expm1_data[i][2]);
+ if (!subset(expected, out))
+ {
+ std::cout << in << std::endl;
+ std::cout << out << std::endl;
+ std::cout << expected << std::endl;
+ BOOST_CHECK(lower(out) <= lower(expected));
+ BOOST_CHECK(upper(out) >= upper(expected));
+ }
+ }
+}
+
+void test_bessel()
+{
+#include "../../math/test/bessel_i_int_data.ipp"
+#include "../../math/test/bessel_i_data.ipp"
+
+ std::cout << std::setprecision(std::numeric_limits<mpfi_float_25>::max_digits10);
+ std::cout << "Testing Bessel Functions\n";
+
+ for (unsigned i = 0; i < bessel_i_int_data.size(); ++i)
+ {
+ int v = boost::lexical_cast<int>(static_cast<const char*>(bessel_i_int_data[i][0]));
+ mpfi_float_25 in(bessel_i_int_data[i][1]);
+ mpfi_float_25 out = boost::math::cyl_bessel_i(v, in);
+ mpfi_float_25 expected(bessel_i_int_data[i][2]);
+ if (!subset(expected, out))
+ {
+ std::cout << in << std::endl;
+ std::cout << out << std::endl;
+ std::cout << expected << std::endl;
+ BOOST_CHECK(lower(out) <= lower(expected));
+ BOOST_CHECK(upper(out) >= upper(expected));
+ }
+ }
+}
+
+#endif
+
+int main()
+{
+#ifdef TEST_SPECIAL
+ test_log1p_expm1();
+ test_bessel();
+#endif
+ test_intervals();
+ test_exp();
+ test_pow();
+ test_trig();
+ test_hyp();
+ return boost::report_errors();
+}