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-rw-r--r--src/third_party/boost-1.68.0/boost/multiprecision/cpp_int/multiply.hpp498
1 files changed, 0 insertions, 498 deletions
diff --git a/src/third_party/boost-1.68.0/boost/multiprecision/cpp_int/multiply.hpp b/src/third_party/boost-1.68.0/boost/multiprecision/cpp_int/multiply.hpp
deleted file mode 100644
index 151b2294c75..00000000000
--- a/src/third_party/boost-1.68.0/boost/multiprecision/cpp_int/multiply.hpp
+++ /dev/null
@@ -1,498 +0,0 @@
-///////////////////////////////////////////////////////////////
-// Copyright 2012 John Maddock. Distributed under the Boost
-// Software License, Version 1.0. (See accompanying file
-// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
-//
-// Comparison operators for cpp_int_backend:
-//
-#ifndef BOOST_MP_CPP_INT_MUL_HPP
-#define BOOST_MP_CPP_INT_MUL_HPP
-
-namespace boost{ namespace multiprecision{ namespace backends{
-
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable:4127) // conditional expression is constant
-#endif
-
- 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>
-inline typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- if(!val)
- {
- result = static_cast<limb_type>(0);
- return;
- }
- if((void*)&a != (void*)&result)
- result.resize(a.size(), a.size());
- double_limb_type carry = 0;
- typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer p = result.limbs();
- typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer pe = result.limbs() + result.size();
- typename cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::const_limb_pointer pa = a.limbs();
- while(p != pe)
- {
- carry += static_cast<double_limb_type>(*pa) * static_cast<double_limb_type>(val);
-#ifdef __MSVC_RUNTIME_CHECKS
- *p = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
-#else
- *p = static_cast<limb_type>(carry);
-#endif
- carry >>= cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_bits;
- ++p, ++pa;
- }
- if(carry)
- {
- unsigned i = result.size();
- result.resize(i + 1, i + 1);
- if(result.size() > i)
- result.limbs()[i] = static_cast<limb_type>(carry);
- }
- result.sign(a.sign());
- if(!cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::variable)
- result.normalize();
-}
-
-//
-// resize_for_carry forces a resize of the underlying buffer only if a previous request
-// for "required" elements could possibly have failed, *and* we have checking enabled.
-// This will cause an overflow error inside resize():
-//
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-inline void resize_for_carry(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& /*result*/, unsigned /*required*/){}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, class Allocator1>
-inline void resize_for_carry(cpp_int_backend<MinBits1, MaxBits1, SignType1, checked, Allocator1>& result, unsigned required)
-{
- if(result.size() < required)
- result.resize(required, required);
-}
-
-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, unsigned MinBits3, unsigned MaxBits3, cpp_integer_type SignType3, cpp_int_check_type Checked3, class Allocator3>
-inline typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- // Very simple long multiplication, only usable for small numbers of limb_type's
- // but that's the typical use case for this type anyway:
- //
- // Special cases first:
- //
- unsigned as = a.size();
- unsigned bs = b.size();
- typename cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::const_limb_pointer pa = a.limbs();
- typename cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3>::const_limb_pointer pb = b.limbs();
- if(as == 1)
- {
- bool s = b.sign() != a.sign();
- if(bs == 1)
- {
- result = static_cast<double_limb_type>(*pa) * static_cast<double_limb_type>(*pb);
- }
- else
- {
- limb_type l = *pa;
- eval_multiply(result, b, l);
- }
- result.sign(s);
- return;
- }
- if(bs == 1)
- {
- bool s = b.sign() != a.sign();
- limb_type l = *pb;
- eval_multiply(result, a, l);
- result.sign(s);
- return;
- }
-
- if((void*)&result == (void*)&a)
- {
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t(a);
- eval_multiply(result, t, b);
- return;
- }
- if((void*)&result == (void*)&b)
- {
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t(b);
- eval_multiply(result, a, t);
- return;
- }
-
- result.resize(as + bs, as + bs - 1);
- typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer pr = result.limbs();
-
- static const double_limb_type limb_max = ~static_cast<limb_type>(0u);
- static const double_limb_type double_limb_max = ~static_cast<double_limb_type>(0u);
- BOOST_STATIC_ASSERT(double_limb_max - 2 * limb_max >= limb_max * limb_max);
-
- double_limb_type carry = 0;
- std::memset(pr, 0, result.size() * sizeof(limb_type));
- for(unsigned i = 0; i < as; ++i)
- {
- unsigned inner_limit = cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::variable ? bs : (std::min)(result.size() - i, bs);
- unsigned j;
- for(j = 0; j < inner_limit; ++j)
- {
- BOOST_ASSERT(i+j < result.size());
-#if (!defined(__GLIBCXX__) && !defined(__GLIBCPP__)) || !BOOST_WORKAROUND(BOOST_GCC_VERSION, <= 50100)
- BOOST_ASSERT(!std::numeric_limits<double_limb_type>::is_specialized
- || ((std::numeric_limits<double_limb_type>::max)() - carry
- >
- static_cast<double_limb_type>(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value) * static_cast<double_limb_type>(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value)));
-#endif
- carry += static_cast<double_limb_type>(pa[i]) * static_cast<double_limb_type>(pb[j]);
- BOOST_ASSERT(!std::numeric_limits<double_limb_type>::is_specialized || ((std::numeric_limits<double_limb_type>::max)() - carry >= pr[i+j]));
- carry += pr[i + j];
-#ifdef __MSVC_RUNTIME_CHECKS
- pr[i + j] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
-#else
- pr[i + j] = static_cast<limb_type>(carry);
-#endif
- carry >>= cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_bits;
- BOOST_ASSERT(carry <= (cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value));
- }
- if(carry)
- {
- resize_for_carry(result, i + j + 1); // May throw if checking is enabled
- if(i + j < result.size())
-#ifdef __MSVC_RUNTIME_CHECKS
- pr[i + j] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
-#else
- pr[i + j] = static_cast<limb_type>(carry);
-#endif
- }
- carry = 0;
- }
- result.normalize();
- //
- // Set the sign of the result:
- //
- result.sign(a.sign() != b.sign());
-}
-
-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>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- eval_multiply(result, result, a);
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- eval_multiply(result, result, val);
-}
-
-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>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- if(val <= (std::numeric_limits<limb_type>::max)())
- {
- eval_multiply(result, a, static_cast<limb_type>(val));
- }
- else
- {
-#if defined(BOOST_LITTLE_ENDIAN) && !defined(BOOST_MP_TEST_NO_LE)
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t(val);
-#else
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t;
- t = val;
-#endif
- eval_multiply(result, a, t);
- }
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- eval_multiply(result, result, val);
-}
-
-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>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const signed_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- if(val > 0)
- eval_multiply(result, a, static_cast<limb_type>(val));
- else
- {
- eval_multiply(result, a, static_cast<limb_type>(boost::multiprecision::detail::unsigned_abs(val)));
- result.negate();
- }
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const signed_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- eval_multiply(result, result, val);
-}
-
-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>
-inline typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const signed_double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- if(val > 0)
- {
- if(val <= (std::numeric_limits<limb_type>::max)())
- {
- eval_multiply(result, a, static_cast<limb_type>(val));
- return;
- }
- }
- else if(val >= -static_cast<signed_double_limb_type>((std::numeric_limits<limb_type>::max)()))
- {
- eval_multiply(result, a, static_cast<limb_type>(boost::multiprecision::detail::unsigned_abs(val)));
- result.negate();
- return;
- }
-#if defined(BOOST_LITTLE_ENDIAN) && !defined(BOOST_MP_TEST_NO_LE)
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t(val);
-#else
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t;
- t = val;
-#endif
- eval_multiply(result, a, t);
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const signed_double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- eval_multiply(result, result, val);
-}
-
-//
-// Now over again for trivial cpp_int's:
-//
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && (is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- || is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& o) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- *result.limbs() = detail::checked_multiply(*result.limbs(), *o.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
- result.sign(result.sign() != o.sign());
- result.normalize();
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_unsigned_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& o) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- *result.limbs() = detail::checked_multiply(*result.limbs(), *o.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
- result.normalize();
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && (is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- || is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- *result.limbs() = detail::checked_multiply(*a.limbs(), *b.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
- result.sign(a.sign() != b.sign());
- result.normalize();
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_unsigned_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
-{
- *result.limbs() = detail::checked_multiply(*a.limbs(), *b.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
- result.normalize();
-}
-
-//
-// Special routines for multiplying two integers to obtain a multiprecision result:
-//
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- signed_double_limb_type a, signed_double_limb_type b)
-{
- static const signed_double_limb_type mask = ~static_cast<limb_type>(0);
- static const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
- bool s = false;
- double_limb_type w, x, y, z;
- if(a < 0)
- {
- a = -a;
- s = true;
- }
- if(b < 0)
- {
- b = -b;
- s = !s;
- }
- w = a & mask;
- x = a >> limb_bits;
- y = b & mask;
- z = b >> limb_bits;
-
- result.resize(4, 4);
- limb_type* pr = result.limbs();
-
- double_limb_type carry = w * y;
-#ifdef __MSVC_RUNTIME_CHECKS
- pr[0] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- carry >>= limb_bits;
- carry += w * z + x * y;
- pr[1] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- carry >>= limb_bits;
- carry += x * z;
- pr[2] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- pr[3] = static_cast<limb_type>(carry >> limb_bits);
-#else
- pr[0] = static_cast<limb_type>(carry);
- carry >>= limb_bits;
- carry += w * z + x * y;
- pr[1] = static_cast<limb_type>(carry);
- carry >>= limb_bits;
- carry += x * z;
- pr[2] = static_cast<limb_type>(carry);
- pr[3] = static_cast<limb_type>(carry >> limb_bits);
-#endif
- result.sign(s);
- result.normalize();
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- double_limb_type a, double_limb_type b)
-{
- static const signed_double_limb_type mask = ~static_cast<limb_type>(0);
- static const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
-
- double_limb_type w, x, y, z;
- w = a & mask;
- x = a >> limb_bits;
- y = b & mask;
- z = b >> limb_bits;
-
- result.resize(4, 4);
- limb_type* pr = result.limbs();
-
- double_limb_type carry = w * y;
-#ifdef __MSVC_RUNTIME_CHECKS
- pr[0] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- carry >>= limb_bits;
- carry += w * z;
- pr[1] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- carry >>= limb_bits;
- pr[2] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- carry = x * y + pr[1];
- pr[1] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- carry >>= limb_bits;
- carry += pr[2] + x * z;
- pr[2] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
- pr[3] = static_cast<limb_type>(carry >> limb_bits);
-#else
- pr[0] = static_cast<limb_type>(carry);
- carry >>= limb_bits;
- carry += w * z;
- pr[1] = static_cast<limb_type>(carry);
- carry >>= limb_bits;
- pr[2] = static_cast<limb_type>(carry);
- carry = x * y + pr[1];
- pr[1] = static_cast<limb_type>(carry);
- carry >>= limb_bits;
- carry += pr[2] + x * z;
- pr[2] = static_cast<limb_type>(carry);
- pr[3] = static_cast<limb_type>(carry >> limb_bits);
-#endif
- result.sign(false);
- result.normalize();
-}
-
-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>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> const& a,
- cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> const& b)
-{
- typedef typename boost::multiprecision::detail::canonical<typename cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::local_limb_type, cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::type canonical_type;
- eval_multiply(result, static_cast<canonical_type>(*a.limbs()), static_cast<canonical_type>(*b.limbs()));
- result.sign(a.sign() != b.sign());
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, class SI>
-BOOST_MP_FORCEINLINE typename enable_if_c<is_signed<SI>::value && (sizeof(SI) <= sizeof(signed_double_limb_type) / 2)>::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- SI a, SI b)
-{
- result = static_cast<signed_double_limb_type>(a) * static_cast<signed_double_limb_type>(b);
-}
-
-template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, class UI>
-BOOST_MP_FORCEINLINE typename enable_if_c<is_unsigned<UI>::value && (sizeof(UI) <= sizeof(signed_double_limb_type) / 2)>::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- UI a, UI b)
-{
- result = static_cast<double_limb_type>(a) * static_cast<double_limb_type>(b);
-}
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
-}}} // namespaces
-
-#endif
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