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200 lines
7.9 KiB
C++
200 lines
7.9 KiB
C++
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// Copyright John Maddock 2006.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#define BOOST_MATH_ASSERT_UNDEFINED_POLICY false
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#include <boost/math/concepts/std_real_concept.hpp>
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#include <boost/math/concepts/distributions.hpp>
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#include "compile_test/instantiate.hpp"
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//
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// The purpose of this test is to verify that our code compiles
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// cleanly with a type whose std lib functions are in namespace
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// std and can *not* be found by ADL. This verifies that we're
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// not finding std lib functions that are in the global namespace
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// for example calling ::pow(double) rather than std::pow(long double).
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// This is a silent error that does the wrong thing at runtime, and
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// of course we can't call std::pow() directly because we want
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// the functions to be found by ADL when that's appropriate.
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//
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// Furthermore our code does different things internally depending
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// on numeric_limits<>::digits, so there are some macros that can
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// be defined that cause our concept-archetype to emulate various
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// floating point types:
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//
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// EMULATE32: 32-bit float
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// EMULATE64: 64-bit double
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// EMULATE80: 80-bit long double
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// EMULATE128: 128-bit long double
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//
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// In order to ensure total code coverage this file must be
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// compiled with each of the above macros in turn, and then
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// without any of the above as well!
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//
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#define NULL_MACRO /**/
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#ifdef EMULATE32
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namespace std{
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template<>
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struct numeric_limits<boost::math::concepts::std_real_concept>
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{
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static const bool is_specialized = true;
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static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
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static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
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static const int digits = 24;
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static const int digits10 = 6;
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static const bool is_signed = true;
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static const bool is_integer = false;
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static const bool is_exact = false;
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static const int radix = 2;
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static boost::math::concepts::std_real_concept epsilon() throw();
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static boost::math::concepts::std_real_concept round_error() throw();
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static const int min_exponent = -125;
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static const int min_exponent10 = -37;
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static const int max_exponent = 128;
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static const int max_exponent10 = 38;
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static const bool has_infinity = true;
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static const bool has_quiet_NaN = true;
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static const bool has_signaling_NaN = true;
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static const float_denorm_style has_denorm = denorm_absent;
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static const bool has_denorm_loss = false;
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static boost::math::concepts::std_real_concept infinity() throw();
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static boost::math::concepts::std_real_concept quiet_NaN() throw();
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static boost::math::concepts::std_real_concept signaling_NaN() throw();
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static boost::math::concepts::std_real_concept denorm_min() throw();
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static const bool is_iec559 = true;
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static const bool is_bounded = false;
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static const bool is_modulo = false;
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static const bool traps = false;
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static const bool tinyness_before = false;
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static const float_round_style round_style = round_toward_zero;
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};
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}
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#endif
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#ifdef EMULATE64
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namespace std{
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template<>
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struct numeric_limits<boost::math::concepts::std_real_concept>
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{
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static const bool is_specialized = true;
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static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
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static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
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static const int digits = 53;
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static const int digits10 = 15;
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static const bool is_signed = true;
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static const bool is_integer = false;
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static const bool is_exact = false;
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static const int radix = 2;
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static boost::math::concepts::std_real_concept epsilon() throw();
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static boost::math::concepts::std_real_concept round_error() throw();
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static const int min_exponent = -1021;
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static const int min_exponent10 = -307;
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static const int max_exponent = 1024;
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static const int max_exponent10 = 308;
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static const bool has_infinity = true;
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static const bool has_quiet_NaN = true;
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static const bool has_signaling_NaN = true;
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static const float_denorm_style has_denorm = denorm_absent;
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static const bool has_denorm_loss = false;
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static boost::math::concepts::std_real_concept infinity() throw();
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static boost::math::concepts::std_real_concept quiet_NaN() throw();
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static boost::math::concepts::std_real_concept signaling_NaN() throw();
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static boost::math::concepts::std_real_concept denorm_min() throw();
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static const bool is_iec559 = true;
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static const bool is_bounded = false;
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static const bool is_modulo = false;
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static const bool traps = false;
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static const bool tinyness_before = false;
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static const float_round_style round_style = round_toward_zero;
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};
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}
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#endif
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#ifdef EMULATE80
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namespace std{
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template<>
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struct numeric_limits<boost::math::concepts::std_real_concept>
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{
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static const bool is_specialized = true;
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static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
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static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
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static const int digits = 64;
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static const int digits10 = 18;
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static const bool is_signed = true;
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static const bool is_integer = false;
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static const bool is_exact = false;
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static const int radix = 2;
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static boost::math::concepts::std_real_concept epsilon() throw();
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static boost::math::concepts::std_real_concept round_error() throw();
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static const int min_exponent = -16381;
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static const int min_exponent10 = -4931;
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static const int max_exponent = 16384;
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static const int max_exponent10 = 4932;
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static const bool has_infinity = true;
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static const bool has_quiet_NaN = true;
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static const bool has_signaling_NaN = true;
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static const float_denorm_style has_denorm = denorm_absent;
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static const bool has_denorm_loss = false;
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static boost::math::concepts::std_real_concept infinity() throw();
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static boost::math::concepts::std_real_concept quiet_NaN() throw();
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static boost::math::concepts::std_real_concept signaling_NaN() throw();
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static boost::math::concepts::std_real_concept denorm_min() throw();
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static const bool is_iec559 = true;
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static const bool is_bounded = false;
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static const bool is_modulo = false;
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static const bool traps = false;
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static const bool tinyness_before = false;
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static const float_round_style round_style = round_toward_zero;
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};
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}
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#endif
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#ifdef EMULATE128
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namespace std{
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template<>
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struct numeric_limits<boost::math::concepts::std_real_concept>
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{
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static const bool is_specialized = true;
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static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
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static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
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static const int digits = 113;
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static const int digits10 = 33;
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static const bool is_signed = true;
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static const bool is_integer = false;
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static const bool is_exact = false;
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static const int radix = 2;
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static boost::math::concepts::std_real_concept epsilon() throw();
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static boost::math::concepts::std_real_concept round_error() throw();
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static const int min_exponent = -16381;
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static const int min_exponent10 = -4931;
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static const int max_exponent = 16384;
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static const int max_exponent10 = 4932;
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static const bool has_infinity = true;
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static const bool has_quiet_NaN = true;
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static const bool has_signaling_NaN = true;
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static const float_denorm_style has_denorm = denorm_absent;
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static const bool has_denorm_loss = false;
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static boost::math::concepts::std_real_concept infinity() throw();
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static boost::math::concepts::std_real_concept quiet_NaN() throw();
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static boost::math::concepts::std_real_concept signaling_NaN() throw();
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static boost::math::concepts::std_real_concept denorm_min() throw();
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static const bool is_iec559 = true;
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static const bool is_bounded = false;
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static const bool is_modulo = false;
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static const bool traps = false;
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static const bool tinyness_before = false;
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static const float_round_style round_style = round_toward_zero;
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};
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}
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#endif
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int main()
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{
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instantiate(boost::math::concepts::std_real_concept(0));
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}
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