Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 467 insertions, 0 deletions

diff --git a/src/boost/libs/math/test/test_round.cpp b/src/boost/libs/math/test/test_round.cpp
new file mode 100644
index 000000000..6475ac295
--- /dev/null
+++ b/src/boost/libs/math/test/test_round.cpp
@@ -0,0 +1,467 @@
+//  (C) Copyright John Maddock 2007.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <pch.hpp>
+
+#include <boost/math/concepts/real_concept.hpp>
+#define BOOST_TEST_MAIN
+#include <boost/test/unit_test.hpp>
+#include <boost/math/tools/test.hpp>
+#include <boost/test/tools/floating_point_comparison.hpp>
+#include <boost/math/special_functions/round.hpp>
+#include <boost/math/special_functions/next.hpp>
+#include <boost/math/special_functions/trunc.hpp>
+#include <boost/math/special_functions/modf.hpp>
+#include <boost/math/special_functions/sign.hpp>
+#include <boost/random/mersenne_twister.hpp>
+#include <iostream>
+#include <iomanip>
+
+boost::mt19937 rng;
+
+template <class T>
+T get_random()
+{
+   //
+   // Fill all the bits in T with random values,
+   // likewise set the exponent to a random value
+   // that will still fit inside a T, and always
+   // have a remainder as well as an integer part.
+   //
+   int bits = boost::math::tools::digits<T>();
+   int shift = 0;
+   int exponent = rng() % (bits - 4);
+   T result = 0;
+   while(bits > 0)
+   {
+      result += ldexp(static_cast<T>(rng()), shift);
+      shift += std::numeric_limits<int>::digits;
+      bits -= std::numeric_limits<int>::digits;
+   }
+   return rng() & 1u ? -ldexp(frexp(result, &bits), exponent) : ldexp(frexp(result, &bits), exponent);
+}
+
+template <class T, class U>
+void check_within_half(T a, U u)
+{
+   BOOST_MATH_STD_USING
+   if(fabs(a-u) > 0.5f)
+   {
+      BOOST_ERROR("Rounded result differed by more than 0.5 from the original");
+      std::cerr << "Values were: " << std::setprecision(35) << std::setw(40)
+         << std::left << a << u << std::endl;
+   }
+   if((fabs(a - u) == 0.5f) && (fabs(static_cast<T>(u)) < fabs(a)))
+   {
+      BOOST_ERROR("Rounded result was towards zero with boost::round");
+      std::cerr << "Values were: " << std::setprecision(35) << std::setw(40)
+         << std::left << a << u << std::endl;
+   }
+}
+
+//
+// We may not have an abs overload for long long so provide a fall back:
+//
+template <class T>
+inline T safe_abs(T const& v ...)
+{
+   return v < 0 ? -v : v;
+}
+
+template <class T, class U>
+void check_trunc_result(T a, U u)
+{
+   BOOST_MATH_STD_USING
+   if(fabs(a-u) >= 1)
+   {
+      BOOST_ERROR("Rounded result differed by more than 1 from the original");
+      std::cerr << "Values were: " << std::setprecision(35) << std::setw(40)
+         << std::left << a << u << std::endl;
+   }
+   if(abs(a) < safe_abs(u))
+   {
+      BOOST_ERROR("Truncated result had larger absolute value than the original");
+      std::cerr << "Values were: " << std::setprecision(35) << std::setw(40)
+         << std::left << a << u << std::endl;
+   }
+   if(fabs(static_cast<T>(u)) > fabs(a))
+   {
+      BOOST_ERROR("Rounded result was away from zero with boost::trunc");
+      std::cerr << "Values were: " << std::setprecision(35) << std::setw(40)
+         << std::left << a << u << std::endl;
+   }
+}
+
+template <class T, class U>
+void check_modf_result(T a, T fract, U ipart)
+{
+   BOOST_MATH_STD_USING
+   if(fract + ipart != a)
+   {
+      BOOST_ERROR("Fractional and integer results do not add up to the original value");
+      std::cerr << "Values were: " << std::setprecision(35) << " "
+         << std::left << a << ipart << " " << fract << std::endl;
+   }
+   if((boost::math::sign(a) != boost::math::sign(fract)) && boost::math::sign(fract))
+   {
+      BOOST_ERROR("Original and fractional parts have differing signs");
+      std::cerr << "Values were: " << std::setprecision(35) << " "
+         << std::left << a << ipart << " " << fract << std::endl;
+   }
+   if((boost::math::sign(a) != boost::math::sign(ipart)) && boost::math::sign(ipart))
+   {
+      BOOST_ERROR("Original and integer parts have differing signs");
+      std::cerr << "Values were: " << std::setprecision(35) << " "
+         << std::left << a << ipart << " " << ipart << std::endl;
+   }
+   if(fabs(a-ipart) >= 1)
+   {
+      BOOST_ERROR("Rounded result differed by more than 1 from the original");
+      std::cerr << "Values were: " << std::setprecision(35) << std::setw(40)
+         << std::left << a << ipart << std::endl;
+   }
+}
+
+template <class T>
+void test_round_number(T arg)
+{
+   BOOST_MATH_STD_USING
+#ifdef BOOST_HAS_LONG_LONG
+   using boost::math::llround;  using boost::math::lltrunc;
+#endif
+
+   T r = round(arg);
+   check_within_half(arg, r);
+   r = trunc(arg);
+   check_trunc_result(arg, r);
+   T frac = boost::math::modf(arg, &r);
+   check_modf_result(arg, frac, r);
+
+   if(abs(r) < (std::numeric_limits<int>::max)())
+   {
+      int i = iround(arg);
+      check_within_half(arg, i);
+      i = itrunc(arg);
+      check_trunc_result(arg, T(i));
+      r = boost::math::modf(arg, &i);
+      check_modf_result(arg, r, i);
+   }
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<int>::digits)
+   {
+      int si = iround(static_cast<T>((std::numeric_limits<int>::max)()));
+      check_within_half(static_cast<T>((std::numeric_limits<int>::max)()), si);
+      si = iround(static_cast<T>((std::numeric_limits<int>::min)()));
+      check_within_half(static_cast<T>((std::numeric_limits<int>::min)()), si);
+      si = itrunc(static_cast<T>((std::numeric_limits<int>::max)()));
+      check_trunc_result(static_cast<T>((std::numeric_limits<int>::max)()), T(si));
+      si = itrunc(static_cast<T>((std::numeric_limits<int>::min)()));
+      check_trunc_result(static_cast<T>((std::numeric_limits<int>::min)()), T(si));
+   }
+   if(abs(r) < (std::numeric_limits<long>::max)())
+   {
+      long l = lround(arg);
+      check_within_half(arg, l);
+      l = ltrunc(arg);
+      check_trunc_result(arg, T(l));
+      r = boost::math::modf(arg, &l);
+      check_modf_result(arg, r, l);
+   }
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<long>::digits)
+   {
+      long k = lround(static_cast<T>((std::numeric_limits<long>::max)()));
+      check_within_half(static_cast<T>((std::numeric_limits<long>::max)()), k);
+      k = lround(static_cast<T>((std::numeric_limits<long>::min)()));
+      check_within_half(static_cast<T>((std::numeric_limits<long>::min)()), k);
+      k = ltrunc(static_cast<T>((std::numeric_limits<long>::max)()));
+      check_trunc_result(static_cast<T>((std::numeric_limits<long>::max)()), T(k));
+      k = ltrunc(static_cast<T>((std::numeric_limits<long>::min)()));
+      check_trunc_result(static_cast<T>((std::numeric_limits<long>::min)()), T(k));
+   }
+
+#ifdef BOOST_HAS_LONG_LONG
+   if(abs(r) < (std::numeric_limits<boost::long_long_type>::max)())
+   {
+      boost::long_long_type ll = llround(arg);
+      check_within_half(arg, ll);
+      ll = lltrunc(arg);
+      check_trunc_result(arg, T(ll));
+      r = boost::math::modf(arg, &ll);
+      check_modf_result(arg, r, ll);
+   }
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<boost::long_long_type>::digits)
+   {
+      boost::long_long_type j = llround(static_cast<T>((std::numeric_limits<boost::long_long_type>::max)()));
+      check_within_half(static_cast<T>((std::numeric_limits<boost::long_long_type>::max)()), j);
+      j = llround(static_cast<T>((std::numeric_limits<boost::long_long_type>::min)()));
+      check_within_half(static_cast<T>((std::numeric_limits<boost::long_long_type>::min)()), j);
+      j = lltrunc(static_cast<T>((std::numeric_limits<boost::long_long_type>::max)()));
+      check_trunc_result(static_cast<T>((std::numeric_limits<boost::long_long_type>::max)()), T(j));
+      j = lltrunc(static_cast<T>((std::numeric_limits<boost::long_long_type>::min)()));
+      check_trunc_result(static_cast<T>((std::numeric_limits<boost::long_long_type>::min)()), T(j));
+   }
+#endif
+}
+
+template <class T>
+void test_round(T, const char* name )
+{
+   BOOST_MATH_STD_USING
+#ifdef BOOST_HAS_LONG_LONG
+   using boost::math::llround;  using boost::math::lltrunc;
+#endif
+
+   std::cout << "Testing rounding with type " << name << std::endl;
+
+   for(int i = 0; i < 1000; ++i)
+   {
+      T arg = get_random<T>();
+      test_round_number<T>(arg);
+   }
+   //
+   // Finish off by testing the error handlers:
+   //
+   BOOST_MATH_CHECK_THROW(iround(static_cast<T>(1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(iround(static_cast<T>(-1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(lround(static_cast<T>(1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(lround(static_cast<T>(-1e20)), boost::math::rounding_error);
+#ifdef BOOST_HAS_LONG_LONG
+   BOOST_MATH_CHECK_THROW(llround(static_cast<T>(1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(llround(static_cast<T>(-1e20)), boost::math::rounding_error);
+#endif
+   if(std::numeric_limits<T>::has_infinity)
+   {
+      BOOST_MATH_CHECK_THROW(round(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(iround(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(iround(-std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(lround(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(lround(-std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+   #ifdef BOOST_HAS_LONG_LONG
+      BOOST_MATH_CHECK_THROW(llround(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(llround(-std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+   #endif
+   }
+   if(std::numeric_limits<T>::has_quiet_NaN)
+   {
+      BOOST_MATH_CHECK_THROW(round(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(iround(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(lround(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+   #ifdef BOOST_HAS_LONG_LONG
+      BOOST_MATH_CHECK_THROW(llround(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+   #endif
+   }
+   BOOST_MATH_CHECK_THROW(itrunc(static_cast<T>(1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(itrunc(static_cast<T>(-1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(ltrunc(static_cast<T>(1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(ltrunc(static_cast<T>(-1e20)), boost::math::rounding_error);
+#ifdef BOOST_HAS_LONG_LONG
+   BOOST_MATH_CHECK_THROW(lltrunc(static_cast<T>(1e20)), boost::math::rounding_error);
+   BOOST_MATH_CHECK_THROW(lltrunc(static_cast<T>(-1e20)), boost::math::rounding_error);
+#endif
+   if(std::numeric_limits<T>::has_infinity)
+   {
+      BOOST_MATH_CHECK_THROW(trunc(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(itrunc(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(itrunc(-std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(ltrunc(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(ltrunc(-std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+   #ifdef BOOST_HAS_LONG_LONG
+      BOOST_MATH_CHECK_THROW(lltrunc(std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(lltrunc(-std::numeric_limits<T>::infinity()), boost::math::rounding_error);
+   #endif
+   }
+   if(std::numeric_limits<T>::has_quiet_NaN)
+   {
+      BOOST_MATH_CHECK_THROW(trunc(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(itrunc(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(ltrunc(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+   #ifdef BOOST_HAS_LONG_LONG
+      BOOST_MATH_CHECK_THROW(lltrunc(std::numeric_limits<T>::quiet_NaN()), boost::math::rounding_error);
+   #endif
+   }
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<int>::digits)
+   {
+      BOOST_MATH_CHECK_THROW(itrunc(static_cast<T>((std::numeric_limits<int>::max)()) + 1), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(itrunc(static_cast<T>((std::numeric_limits<int>::min)()) - 1), boost::math::rounding_error);
+   }
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<long>::digits)
+   {
+      BOOST_MATH_CHECK_THROW(ltrunc(static_cast<T>((std::numeric_limits<long>::max)()) + 1), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(ltrunc(static_cast<T>((std::numeric_limits<long>::min)()) - 1), boost::math::rounding_error);
+   }
+#ifndef BOOST_NO_LONG_LONG
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<boost::long_long_type>::digits)
+   {
+      BOOST_MATH_CHECK_THROW(lltrunc(static_cast<T>((std::numeric_limits<boost::long_long_type>::max)()) + 1), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(lltrunc(static_cast<T>((std::numeric_limits<boost::long_long_type>::min)()) - 1), boost::math::rounding_error);
+   }
+#endif
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<int>::digits)
+   {
+      BOOST_MATH_CHECK_THROW(iround(static_cast<T>((std::numeric_limits<int>::max)()) + 1), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(iround(static_cast<T>((std::numeric_limits<int>::min)()) - 1), boost::math::rounding_error);
+   }
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<long>::digits)
+   {
+      BOOST_MATH_CHECK_THROW(lround(static_cast<T>((std::numeric_limits<long>::max)()) + 1), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(lround(static_cast<T>((std::numeric_limits<long>::min)()) - 1), boost::math::rounding_error);
+   }
+#ifndef BOOST_NO_LONG_LONG
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<boost::long_long_type>::digits)
+   {
+      BOOST_MATH_CHECK_THROW(llround(static_cast<T>((std::numeric_limits<boost::long_long_type>::max)()) + 1), boost::math::rounding_error);
+      BOOST_MATH_CHECK_THROW(llround(static_cast<T>((std::numeric_limits<boost::long_long_type>::min)()) - 1), boost::math::rounding_error);
+   }
+#endif
+   //
+   // try non-throwing error handlers:
+   //
+   boost::math::policies::policy<boost::math::policies::rounding_error<boost::math::policies::ignore_error> > pol;
+
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<int>::digits)
+   {
+      BOOST_CHECK_EQUAL(iround((std::numeric_limits<int>::max)() + T(1.0), pol), (std::numeric_limits<int>::max)());
+      BOOST_CHECK_EQUAL(iround((std::numeric_limits<int>::min)() - T(1.0), pol), (std::numeric_limits<int>::min)());
+      BOOST_CHECK_EQUAL(itrunc((std::numeric_limits<int>::max)() + T(1.0), pol), (std::numeric_limits<int>::max)());
+      BOOST_CHECK_EQUAL(itrunc((std::numeric_limits<int>::min)() - T(1.0), pol), (std::numeric_limits<int>::min)());
+   }
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<long>::digits)
+   {
+      BOOST_CHECK_EQUAL(lround((std::numeric_limits<long>::max)() + T(1.0), pol), (std::numeric_limits<long>::max)());
+      BOOST_CHECK_EQUAL(lround((std::numeric_limits<long>::min)() - T(1.0), pol), (std::numeric_limits<long>::min)());
+      BOOST_CHECK_EQUAL(ltrunc((std::numeric_limits<long>::max)() + T(1.0), pol), (std::numeric_limits<long>::max)());
+      BOOST_CHECK_EQUAL(ltrunc((std::numeric_limits<long>::min)() - T(1.0), pol), (std::numeric_limits<long>::min)());
+   }
+#ifndef BOOST_NO_LONG_LONG
+   if(std::numeric_limits<T>::digits >= std::numeric_limits<long long>::digits)
+   {
+      BOOST_CHECK_EQUAL(llround((std::numeric_limits<long long>::max)() + T(1.0), pol), (std::numeric_limits<long long>::max)());
+      BOOST_CHECK_EQUAL(llround((std::numeric_limits<long long>::min)() - T(1.0), pol), (std::numeric_limits<long long>::min)());
+      BOOST_CHECK_EQUAL(lltrunc((std::numeric_limits<long long>::max)() + T(1.0), pol), (std::numeric_limits<long long>::max)());
+      BOOST_CHECK_EQUAL(lltrunc((std::numeric_limits<long long>::min)() - T(1.0), pol), (std::numeric_limits<long long>::min)());
+   }
+#endif
+   // Again with bigger value:
+   T big = 1e20f;
+   BOOST_CHECK_EQUAL(iround(big, pol), (std::numeric_limits<int>::max)());
+   BOOST_CHECK_EQUAL(lround(big, pol), (std::numeric_limits<long>::max)());
+   BOOST_CHECK_EQUAL(iround(-big, pol), (std::numeric_limits<int>::min)());
+   BOOST_CHECK_EQUAL(lround(-big, pol), (std::numeric_limits<long>::min)());
+   BOOST_CHECK_EQUAL(itrunc(big, pol), (std::numeric_limits<int>::max)());
+   BOOST_CHECK_EQUAL(ltrunc(big, pol), (std::numeric_limits<long>::max)());
+   BOOST_CHECK_EQUAL(itrunc(-big, pol), (std::numeric_limits<int>::min)());
+   BOOST_CHECK_EQUAL(ltrunc(-big, pol), (std::numeric_limits<long>::min)());
+#ifndef BOOST_NO_LONG_LONG
+   BOOST_CHECK_EQUAL(llround(big, pol), (std::numeric_limits<long long>::max)());
+   BOOST_CHECK_EQUAL(llround(-big, pol), (std::numeric_limits<long long>::min)());
+   BOOST_CHECK_EQUAL(lltrunc(big, pol), (std::numeric_limits<long long>::max)());
+   BOOST_CHECK_EQUAL(lltrunc(-big, pol), (std::numeric_limits<long long>::min)());
+#endif
+
+   //
+   // Special cases that we know can go bad:
+   //
+   T half = 0.5f;
+   half = boost::math::float_prior(half);
+   test_round_number(half);
+   half = -0.5f;
+   half = boost::math::float_next(half);
+   test_round_number(half);
+
+   if(std::numeric_limits<T>::is_specialized)
+   {
+      //
+      // Odd and even integer values:
+      //
+      T val;
+      for(int i = 2; i < std::numeric_limits<T>::max_exponent; ++i)
+      {
+         val = ldexp(T(1), i);
+         test_round_number(val);
+         ++val;
+         test_round_number(val);
+         val = -val;
+         test_round_number(val);
+         ++val;
+         test_round_number(val);
+      }
+   }
+}
+
+BOOST_AUTO_TEST_CASE( test_main )
+{
+   test_round(0.1F, "float");
+   test_round(0.1, "double");
+#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
+   test_round(0.1L, "long double");
+   test_round(boost::math::concepts::real_concept(0.1), "real_concept");
+#else
+   std::cout << "<note>The long double tests have been disabled on this platform "
+      "either because the long double overloads of the usual math functions are "
+      "not available at all, or because they are too inaccurate for these tests "
+      "to pass.</note>" << std::endl;
+#endif
+
+   // test rounding of direct predecessor/successor of 0.5/-0.5 for float and double
+   test_round_number(-0.4999999701976776123046875f);
+   BOOST_CHECK_EQUAL(boost::math::round(-0.4999999701976776123046875f), 0.0f);
+
+   test_round_number(0.4999999701976776123046875f);
+   BOOST_CHECK_EQUAL(boost::math::round(0.4999999701976776123046875f), 0.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-0.499999999999999944488848768742172978818416595458984375), 0.0);
+   test_round_number(-0.499999999999999944488848768742172978818416595458984375);
+
+   BOOST_CHECK_EQUAL(boost::math::round(0.499999999999999944488848768742172978818416595458984375), 0.0);
+   test_round_number(0.499999999999999944488848768742172978818416595458984375);
+
+   // test rounding of integer numbers on the edge of the float/double mantissa width
+   BOOST_CHECK_EQUAL(boost::math::round(-16777215.0f), -16777215.0f);
+   test_round_number(-16777215.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-16777213.0f), -16777213.0f);
+   test_round_number(-16777213.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-8388611.0f), -8388611.0f);
+   test_round_number(-8388611.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-8388609.0f), -8388609.0f);
+   test_round_number(-8388609.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(8388609.0f), 8388609.0f);
+   test_round_number(8388609.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(8388611.0f), 8388611.0f);
+   test_round_number(8388611.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(16777213.0f), 16777213.0f);
+   test_round_number(16777213.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(16777215.0f), 16777215.0f);
+   test_round_number(16777215.0f);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-9007199254740993.0), -9007199254740993.0);
+   test_round_number(-9007199254740993.0);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-9007199254740991.0), -9007199254740991.0);
+   test_round_number(-9007199254740991.0);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-4503599627370499.0), -4503599627370499.0);
+   test_round_number(-4503599627370499.0);
+
+   BOOST_CHECK_EQUAL(boost::math::round(-4503599627370497.0), -4503599627370497.0);
+   test_round_number(-4503599627370497.0);
+
+   BOOST_CHECK_EQUAL(boost::math::round(4503599627370497.0), 4503599627370497.0);
+   test_round_number(4503599627370497.0);
+
+   BOOST_CHECK_EQUAL(boost::math::round(4503599627370499.0), 4503599627370499.0);
+   test_round_number(4503599627370499.0);
+
+   BOOST_CHECK_EQUAL(boost::math::round(9007199254740991.0), 9007199254740991.0);
+   test_round_number(9007199254740991.0);
+
+   BOOST_CHECK_EQUAL(boost::math::round(9007199254740993.0), 9007199254740993.0);
+   test_round_number(9007199254740993.0);
+}