Chris@16: ///////////////////////////////////////////////////////////////
Chris@16: //  Copyright 2012 John Maddock. Distributed under the Boost
Chris@16: //  Software License, Version 1.0. (See accompanying file
Chris@16: //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
Chris@16: //
Chris@16: // Comparison operators for cpp_int_backend:
Chris@16: //
Chris@16: #ifndef BOOST_MP_CPP_INT_COMPARISON_HPP
Chris@16: #define BOOST_MP_CPP_INT_COMPARISON_HPP
Chris@16: 
Chris@16: #include <boost/type_traits/make_unsigned.hpp>
Chris@16: 
Chris@16: namespace boost{ namespace multiprecision{ namespace backends{
Chris@16: 
Chris@16: #ifdef BOOST_MSVC
Chris@16: #pragma warning(push)
Chris@16: #pragma warning(disable:4018 4389 4996)
Chris@16: #endif
Chris@16: 
Chris@16: //
Chris@16: // Start with non-trivial cpp_int's:
Chris@16: //
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_integer_type SignType, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, SignType, Checked, Allocator> >::value, 
Chris@16:       bool
Chris@16:    >::type 
Chris@16:    eval_eq(const cpp_int_backend<MinBits, MaxBits, SignType, Checked, Allocator>& a, const cpp_int_backend<MinBits, MaxBits, SignType, Checked, Allocator>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, >= 1600)
Chris@16:    return (a.sign() == b.sign())
Chris@16:       && (a.size() == b.size())
Chris@16:       && std::equal(a.limbs(), a.limbs() + a.size(), 
Chris@16:          stdext::checked_array_iterator<cpp_int_backend<MinBits, MaxBits, SignType, Checked, Allocator>::const_limb_pointer>(b.limbs(), b.size()));
Chris@16: #else
Chris@16:    return (a.sign() == b.sign())
Chris@16:       && (a.size() == b.size())
Chris@16:       && std::equal(a.limbs(), a.limbs() + a.size(), b.limbs());
Chris@16: #endif
Chris@16: }
Chris@16: template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value 
Chris@16:       && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value,
Chris@16:       bool
Chris@16:    >::type 
Chris@16:    eval_eq(const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a, const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, >= 1600)
Chris@16:    return (a.sign() == b.sign())
Chris@16:       && (a.size() == b.size())
Chris@16:       && std::equal(a.limbs(), a.limbs() + a.size(), stdext::checked_array_iterator<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::const_limb_pointer>(b.limbs(), b.size()));
Chris@16: #else
Chris@16:    return (a.sign() == b.sign())
Chris@16:       && (a.size() == b.size())
Chris@16:       && std::equal(a.limbs(), a.limbs() + a.size(), b.limbs());
Chris@16: #endif
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator>& a, limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return (a.sign() == false)
Chris@16:       && (a.size() == 1)
Chris@16:       && (*a.limbs() == b);
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator>& a, signed_limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return (a.sign() == (b < 0))
Chris@16:       && (a.size() == 1)
Chris@101:       && (*a.limbs() == boost::multiprecision::detail::unsigned_abs(b));
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator>& a, limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return (a.size() == 1)
Chris@16:       && (*a.limbs() == b);
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator>& a, signed_limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return (b < 0) ? eval_eq(a, cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator>(b)) : eval_eq(a, static_cast<limb_type>(b)); // Use bit pattern of b for comparison
Chris@16: }
Chris@16: 
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator>& a, limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign())
Chris@16:       return true;
Chris@16:    if(a.size() > 1)
Chris@16:       return false;
Chris@16:    return *a.limbs() < b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: inline typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator>& a, signed_limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if((b == 0) || (a.sign() != (b < 0)))
Chris@16:       return a.sign();
Chris@16:    if(a.sign())
Chris@16:    {
Chris@16:       if(a.size() > 1)
Chris@16:          return true;
Chris@101:       return *a.limbs() > boost::multiprecision::detail::unsigned_abs(b);
Chris@16:    }
Chris@16:    else
Chris@16:    {
Chris@16:       if(a.size() > 1)
Chris@16:          return false;
Chris@101:       return *a.limbs() < boost::multiprecision::detail::unsigned_abs(b);
Chris@16:    }
Chris@16: }
Chris@16: 
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator>& a, limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.size() > 1)
Chris@16:       return false;
Chris@16:    return *a.limbs() < b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator>& a, signed_limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return (b < 0) ? a.compare(b) < 0 : eval_lt(a, static_cast<limb_type>(b)); // Use bit pattern of b for comparison
Chris@16: }
Chris@16: 
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator>& a, limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign())
Chris@16:       return false;
Chris@16:    if(a.size() > 1)
Chris@16:       return true;
Chris@16:    return *a.limbs() > b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: inline typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, Allocator>& a, signed_limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(b == 0)
Chris@16:       return !a.sign() && ((a.size() > 1) || *a.limbs());
Chris@16:    if(a.sign() != (b < 0))
Chris@16:       return !a.sign();
Chris@16:    if(a.sign())
Chris@16:    {
Chris@16:       if(a.size() > 1)
Chris@16:          return false;
Chris@101:       return *a.limbs() < boost::multiprecision::detail::unsigned_abs(b);
Chris@16:    }
Chris@16:    else
Chris@16:    {
Chris@16:       if(a.size() > 1)
Chris@16:          return true;
Chris@101:       return *a.limbs() > boost::multiprecision::detail::unsigned_abs(b);
Chris@16:    }
Chris@16: }
Chris@16: 
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator>& a, limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.size() > 1)
Chris@16:       return true;
Chris@16:    return *a.limbs() > b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class Allocator>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       !is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator> >::value,
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, Allocator>& a, signed_limb_type b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return (b < 0) ? a.compare(b) > 0 : eval_gt(a, static_cast<limb_type>(b)); // Use bit pattern of b for comparison.
Chris@16: }
Chris@16: //
Chris@16: // And again for trivial cpp_ints:
Chris@16: //
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::value eval_eq(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return (a.sign() == b.sign()) && (*a.limbs() == *b.limbs());
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::value eval_eq(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return *a.limbs() == *b.limbs();
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class U>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_unsigned<U>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, U b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return !a.sign() && (*a.limbs() == b);
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class S>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_signed<S>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, S b) BOOST_NOEXCEPT
Chris@16: {
Chris@101:    return (a.sign() == (b < 0)) && (*a.limbs() == boost::multiprecision::detail::unsigned_abs(b));
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class U>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_unsigned<U>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, U b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return *a.limbs() == b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class S>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_signed<S>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_eq(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, S b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    typedef typename make_unsigned<S>::type ui_type;
Chris@16:    if(b < 0)
Chris@16:    {
Chris@16:       cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> t(b);
Chris@16:       return *a.limbs() == *t.limbs();
Chris@16:    }
Chris@16:    else
Chris@16:    {
Chris@16:       return *a.limbs() == static_cast<ui_type>(b);
Chris@16:    }
Chris@16: }
Chris@16: 
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value,
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign() != b.sign())
Chris@16:       return a.sign();
Chris@16:    return a.sign() ? *a.limbs() > *b.limbs() : *a.limbs() < *b.limbs();
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value,
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return *a.limbs() < *b.limbs();
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class U>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_unsigned<U>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, U b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign())
Chris@16:       return true;
Chris@16:    return *a.limbs() < b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class S>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_signed<S>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, S b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign() != (b < 0))
Chris@16:       return a.sign();
Chris@101:    return a.sign() ? (*a.limbs() > boost::multiprecision::detail::unsigned_abs(b)) : (*a.limbs() < boost::multiprecision::detail::unsigned_abs(b));
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class U>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_unsigned<U>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, U b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return *a.limbs() < b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class S>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_signed<S>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_lt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, S b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    typedef typename make_unsigned<S>::type ui_type;
Chris@16:    if(b < 0)
Chris@16:    {
Chris@16:       cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> t(b);
Chris@16:       return *a.limbs() < *t.limbs();
Chris@16:    }
Chris@16:    else
Chris@16:    {
Chris@16:       return *a.limbs() < static_cast<ui_type>(b);
Chris@16:    }
Chris@16: }
Chris@16: 
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value,
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign() != b.sign())
Chris@16:       return !a.sign();
Chris@16:    return a.sign() ? *a.limbs() < *b.limbs() : *a.limbs() > *b.limbs();
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value,
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return *a.limbs() > *b.limbs();
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class U>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_unsigned<U>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, U b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign())
Chris@16:       return false;
Chris@16:    return *a.limbs() > b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class S>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_signed<S>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, signed_magnitude, Checked, void>& a, S b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    if(a.sign() != (b < 0))
Chris@16:       return !a.sign();
Chris@101:    return a.sign() ? (*a.limbs() < boost::multiprecision::detail::unsigned_abs(b)) : (*a.limbs() > boost::multiprecision::detail::unsigned_abs(b));
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class U>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_unsigned<U>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, U b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    return *a.limbs() > b;
Chris@16: }
Chris@16: template <unsigned MinBits, unsigned MaxBits, cpp_int_check_type Checked, class S>
Chris@16: BOOST_MP_FORCEINLINE typename enable_if_c<
Chris@16:       is_signed<S>::value && is_trivial_cpp_int<cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> >::value, 
Chris@16:       bool
Chris@16:    >::type eval_gt(const cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void>& a, S b) BOOST_NOEXCEPT
Chris@16: {
Chris@16:    typedef typename make_unsigned<S>::type ui_type;
Chris@16:    if(b < 0)
Chris@16:    {
Chris@16:       cpp_int_backend<MinBits, MaxBits, unsigned_magnitude, Checked, void> t(b);
Chris@16:       return *a.limbs() > *t.limbs();
Chris@16:    }
Chris@16:    else
Chris@16:    {
Chris@16:       return *a.limbs() > static_cast<ui_type>(b);
Chris@16:    }
Chris@16: }
Chris@16: 
Chris@16: #ifdef BOOST_MSVC
Chris@16: #pragma warning(pop)
Chris@16: #endif
Chris@16: 
Chris@16: }}} // namespaces
Chris@16: 
Chris@16: #endif