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Subject: [Boost-commit] svn:boost r78073 - in sandbox/fixed_point: boost/fixed_point libs/fixed_point/example
From: vicente.botet_at_[hidden]
Date: 2012-04-18 17:04:18
Author: viboes
Date: 2012-04-18 17:04:18 EDT (Wed, 18 Apr 2012)
New Revision: 78073
URL: http://svn.boost.org/trac/boost/changeset/78073
Log:
FixedPoint: Code formated and added some constexpr on comparisions
Text files modified:
sandbox/fixed_point/boost/fixed_point/number.hpp | 146 +++++++++++++++++++++++----------------
sandbox/fixed_point/libs/fixed_point/example/ex_xx.cpp | 4
2 files changed, 89 insertions(+), 61 deletions(-)
Modified: sandbox/fixed_point/boost/fixed_point/number.hpp
==============================================================================
--- sandbox/fixed_point/boost/fixed_point/number.hpp (original)
+++ sandbox/fixed_point/boost/fixed_point/number.hpp 2012-04-18 17:04:18 EDT (Wed, 18 Apr 2012)
@@ -449,7 +449,8 @@
struct undefined
{
/**
- * signed_integer_type: Gets the signed integer type with enough bits to manage with the Range and Resolution depending on the F
+ * signed_integer_type: Gets the signed integer type with enough bits to manage with
+ * the Range and Resolution depending on the F
*/
template <int Range, int Resolution>
struct signed_integer_type
@@ -458,7 +459,8 @@
};
/**
- * unsigned_integer_type: Gets the unsigned integer type with enough bits to manage with the Range and Resolution depending on the F
+ * unsigned_integer_type: Gets the unsigned integer type with enough bits to manage with
+ * the Range and Resolution depending on the F
*/
template <int Range, int Resolution>
struct unsigned_integer_type
@@ -855,7 +857,11 @@
return
(
(((underlying_type(rhs.count()) << (P1-P2))) < To::min_index)
- ? To(index(OP2::template on_negative_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))))
+ ? To(index(
+ OP2::template on_negative_overflow<To,underlying_type>(
+ ((underlying_type(rhs.count()) << (P1-P2)))
+ )
+ ))
: To(index(underlying_type(rhs.count()) << (P1-P2)))
);
@@ -889,10 +895,18 @@
return
(
(((underlying_type(rhs.count()) << (P1-P2))) > To::max_index)
- ? To(index(OP2::template on_positive_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))))
+ ? To(index(
+ OP2::template on_positive_overflow<To,underlying_type>(
+ ((underlying_type(rhs.count()) << (P1-P2)))
+ )
+ ))
: (
(((underlying_type(rhs.count()) << (P1-P2))) < To::min_index)
- ? To(index(OP2::template on_negative_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))))
+ ? To(index(
+ OP2::template on_negative_overflow<To,underlying_type>(
+ ((underlying_type(rhs.count()) << (P1-P2)))
+ )
+ ))
: To(index(((underlying_type(rhs.count()) << (P1-P2)))))
)
);
@@ -923,10 +937,18 @@
return (
(((underlying_type(rhs.count()) << (P1-P2))) > To::max_index)
- ? To(index(OP2::template on_positive_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))))
+ ? To(index(
+ OP2::template on_positive_overflow<To,underlying_type>(
+ ((underlying_type(rhs.count()) << (P1-P2)))
+ )
+ ))
: (
(((underlying_type(rhs.count()) << (P1-P2))) < To::min_index)
- ? To(index(OP2::template on_negative_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))))
+ ? To(index(
+ OP2::template on_negative_overflow<To,underlying_type>(
+ ((underlying_type(rhs.count()) << (P1-P2)))
+ )
+ ))
: To(index(((underlying_type(rhs.count()) << (P1-P2)))))
)
);
@@ -956,7 +978,11 @@
return
(
(((underlying_type(rhs.count()) << (P1-P2))) > To::max_index)
- ? To(index(OP2::template on_positive_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))))
+ ? To(index(
+ OP2::template on_positive_overflow<To,underlying_type>(
+ ((underlying_type(rhs.count()) << (P1-P2)))
+ )
+ ))
: To(index(((underlying_type(rhs.count()) << (P1-P2)))))
);
}
@@ -985,7 +1011,9 @@
return
(
(((underlying_type(rhs.count()) << (P1-P2))) > To::max_index)
- ? To(index(OP2::template on_positive_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))))
+ ? To(index(
+ OP2::template on_positive_overflow<To,underlying_type>(((underlying_type(rhs.count()) << (P1-P2))))
+ ))
: To(index(((underlying_type(rhs.count()) << (P1-P2)))))
);
@@ -1075,10 +1103,14 @@
return
(
(rhs.count() > (typename From::underlying_type(To::max_index)<<(P2-P1)))
- ? To(index(OP2::template on_positive_overflow<To,underlying_type>((((rhs.count()) >> (P2-P1))))))
+ ? To(index(
+ OP2::template on_positive_overflow<To,underlying_type>((((rhs.count()) >> (P2-P1))))
+ ))
: (
(rhs.count() < (typename From::underlying_type(To::min_index)<<(P2-P1)))
- ? To(index(OP2::template on_negative_overflow<To,underlying_type>((((rhs.count()) >> (P2-P1))))))
+ ? To(index(
+ OP2::template on_negative_overflow<To,underlying_type>((((rhs.count()) >> (P2-P1))))
+ ))
: To((index(RP2::template round<From,To>(rhs))))
)
);
@@ -1658,7 +1690,8 @@
class real_t
{
#if !defined(BOOST_FIXED_POINT_DOXYGEN_INVOKED)
- BOOST_MPL_ASSERT_MSG(Range>=Resolution, RANGE_MUST_BE_GREATER_EQUAL_THAN_RESOLUTION, (mpl::int_<Range>,mpl::int_<Resolution>));
+ BOOST_MPL_ASSERT_MSG(Range>=Resolution,
+ RANGE_MUST_BE_GREATER_EQUAL_THAN_RESOLUTION, (mpl::int_<Range>,mpl::int_<Resolution>));
#endif
public:
@@ -1688,18 +1721,23 @@
//! The underlying integer type
typedef typename storage_type::template signed_integer_type<Range,Resolution>::type underlying_type;
#if !defined(BOOST_FIXED_POINT_DOXYGEN_INVOKED)
- BOOST_MPL_ASSERT_MSG((sizeof(underlying_type)*8) >= (Range-Resolution+1), UNDERLYING_TYPE_MUST_BE_LARGE_ENOUGH, (underlying_type));
- BOOST_MPL_ASSERT_MSG(boost::is_signed<underlying_type>::value, UNDERLYING_TYPE_MUST_BE_SIGNED, (underlying_type));
+ BOOST_MPL_ASSERT_MSG((sizeof(underlying_type)*8) >= (Range-Resolution+1),
+ UNDERLYING_TYPE_MUST_BE_LARGE_ENOUGH, (underlying_type));
+ BOOST_MPL_ASSERT_MSG(boost::is_signed<underlying_type>::value,
+ UNDERLYING_TYPE_MUST_BE_SIGNED, (underlying_type));
#endif
//! whether the tyoe is signed (always true).
BOOST_STATIC_CONSTEXPR bool is_signed = true;
//! The standard std::number_traits<>::digits.
- BOOST_STATIC_CONSTEXPR std::size_t digits = detail::signed_integer_traits<underlying_type,Range,Resolution>::digits;
+ BOOST_STATIC_CONSTEXPR std::size_t digits =
+ detail::signed_integer_traits<underlying_type,Range,Resolution>::digits;
//! The standard std::number_traits<>::min_index
- BOOST_STATIC_CONSTEXPR underlying_type min_index = detail::signed_integer_traits<underlying_type,Range,Resolution>::const_min;
+ BOOST_STATIC_CONSTEXPR underlying_type min_index =
+ detail::signed_integer_traits<underlying_type,Range,Resolution>::const_min;
//! The standard std::number_traits<>::max_index
- BOOST_STATIC_CONSTEXPR underlying_type max_index = detail::signed_integer_traits<underlying_type,Range,Resolution>::const_max;
+ BOOST_STATIC_CONSTEXPR underlying_type max_index =
+ detail::signed_integer_traits<underlying_type,Range,Resolution>::const_max;
// construct/copy/destroy:
@@ -2192,18 +2230,23 @@
typedef typename storage_type::template unsigned_integer_type<Range,Resolution>::type underlying_type;
#if !defined(BOOST_FIXED_POINT_DOXYGEN_INVOKED)
- BOOST_MPL_ASSERT_MSG((sizeof(underlying_type)*8) >= (Range-Resolution), UNDERLYING_TYPE_MUST_BE_LARGE_ENOUGH, (underlying_type));
- BOOST_MPL_ASSERT_MSG(!boost::is_signed<underlying_type>::value, UNDERLYING_TYPE_MUST_BE_UNSIGNED, (underlying_type));
+ BOOST_MPL_ASSERT_MSG((sizeof(underlying_type)*8) >= (Range-Resolution),
+ UNDERLYING_TYPE_MUST_BE_LARGE_ENOUGH, (underlying_type));
+ BOOST_MPL_ASSERT_MSG(!boost::is_signed<underlying_type>::value,
+ UNDERLYING_TYPE_MUST_BE_UNSIGNED, (underlying_type));
#endif
//! whether the tyoe is signed (always @c false).
BOOST_STATIC_CONSTEXPR bool is_signed = false;
//! The standard std::number_traits<>::digits.
- BOOST_STATIC_CONSTEXPR std::size_t digits = detail::unsigned_integer_traits<underlying_type,Range,Resolution>::digits;
+ BOOST_STATIC_CONSTEXPR std::size_t digits =
+ detail::unsigned_integer_traits<underlying_type,Range,Resolution>::digits;
//! The standard std::number_traits<>::min_index
- BOOST_STATIC_CONSTEXPR underlying_type min_index = detail::unsigned_integer_traits<underlying_type,Range,Resolution>::const_min;
+ BOOST_STATIC_CONSTEXPR underlying_type min_index =
+ detail::unsigned_integer_traits<underlying_type,Range,Resolution>::const_min;
//! The standard std::number_traits<>::max_index
- BOOST_STATIC_CONSTEXPR underlying_type max_index = detail::unsigned_integer_traits<underlying_type,Range,Resolution>::const_max;
+ BOOST_STATIC_CONSTEXPR underlying_type max_index =
+ detail::unsigned_integer_traits<underlying_type,Range,Resolution>::const_max;
// construct/copy/destroy:
/**
@@ -2444,7 +2487,8 @@
return *this;
}
/**
- * @Returns an instance of a signed fixed point nummber with the representation the negation of the representation of this.
+ * @Returns an instance of a signed fixed point number with
+ * the representation the negation of the representation of this.
*/
real_t<Range,Resolution,Rounding,Overflow,Family>
operator-() const
@@ -2605,7 +2649,9 @@
#endif
to_unsigned_number()
{
- return ureal_t< static_log2<mpl::abs<mpl::int_<Times+1> >::type::value>::value+Resolution, Resolution>(index(Times));
+ return ureal_t<
+ static_log2<mpl::abs<mpl::int_<Times+1> >::type::value>::value+Resolution, Resolution
+ >(index(Times));
}
/**
* real_t compile time factory.
@@ -2622,7 +2668,9 @@
#endif
to_signed_number()
{
- return real_t< static_log2<mpl::abs<mpl::int_<Times+1> >::type::value>::value+Resolution, Resolution>(index(Times));
+ return real_t<
+ static_log2<mpl::abs<mpl::int_<Times+1> >::type::value>::value+Resolution, Resolution
+ > (index(Times));
}
// /**
@@ -3028,21 +3076,6 @@
return result_type(index(underlying_type(lhs.count()) * rhs.count()));
}
- /*
- * N = C*D+R
- * P*N = P*C*D+P*R
- * X=INT(P*N/D)=P*C
- * X/P <= N/D < (X+1)/P
- * 2X/2P <= N/D < 2(X+1)/2P
- *
- * exact : X/P == N/D
- * near_down: X/P < N/D < (2X+1)/2P
- * half : (2X+1)/2P == N/D
- * near_up : (2X+1)/2P < N/D < (X+1)/P
- *
- *
- */
-
/**
* fixed point division giving the expected result type.
* @Returns DT(lhs) / DT(rhs) taking in account the rounding policy of the expected result.
@@ -3065,8 +3098,6 @@
BOOST_STATIC_ASSERT((Res::is_signed==DT::is_signed));
BOOST_ASSERT_MSG(DT(rhs).count()!=0, "Division by 0");
- // underlying_type ci = detail::shift<typename DT::underlying_type, DT::digits, P>(DT(lhs).count()) / DT(rhs).count();
- // return result_type(index(ci)); // ....
typedef typename result_type::rounding_type rounding_type;
return result_type(index(rounding_type::template round_divide<Res>(DT(lhs), DT(rhs))));
}
@@ -3092,8 +3123,6 @@
BOOST_STATIC_ASSERT((Res::is_signed==DT::is_signed));
BOOST_ASSERT_MSG(DT(rhs).count()!=0, "Division by 0");
- // underlying_type ci = detail::shift<typename DT::underlying_type, DT::digits, P>(DT(lhs).count()) / DT(rhs).count();
- // return result_type(index(ci)); // ....
typedef typename result_type::rounding_type rounding_type;
return result_type(index(rounding_type::template round_divide<Res>(DT(lhs), DT(rhs))));
}
@@ -3119,8 +3148,6 @@
BOOST_STATIC_ASSERT((Res::is_signed==DT::is_signed));
BOOST_ASSERT_MSG(DT(rhs).count()!=0, "Division by 0");
- // underlying_type ci = detail::shift<typename DT::underlying_type, DT::digits, P>(DT(lhs).count()) / DT(rhs).count();
- // return result_type(index(ci)); // ....
typedef typename result_type::rounding_type rounding_type;
return result_type(index(rounding_type::template round_divide<Res>(DT(lhs), DT(rhs))));
}
@@ -3146,8 +3173,6 @@
BOOST_STATIC_ASSERT((Res::is_signed==DT::is_signed));
BOOST_ASSERT_MSG(DT(rhs).count()!=0, "Division by 0");
- // underlying_type ci = detail::shift<typename DT::underlying_type, DT::digits, P>(DT(lhs).count()) / DT(rhs).count();
- // return result_type(index(ci)); // ....
typedef typename result_type::rounding_type rounding_type;
return result_type(index(rounding_type::template round_divide<Res>(DT(lhs), DT(rhs))));
}
@@ -3291,7 +3316,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator==(real_t<R1,P1,RP1,OP1,F1> const& lhs, real_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3304,7 +3329,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator==(ureal_t<R1,P1,RP1,OP1,F1> const& lhs, ureal_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3317,7 +3342,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator!=(real_t<R1,P1,RP1,OP1,F1> const& lhs, real_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3329,7 +3354,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator!=(ureal_t<R1,P1,RP1,OP1,F1> const& lhs, ureal_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3341,7 +3366,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator<(real_t<R1,P1,RP1,OP1,F1> const& lhs, real_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3354,7 +3379,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator<(ureal_t<R1,P1,RP1,OP1,F1> const& lhs, ureal_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3367,7 +3392,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator>(real_t<R1,P1,RP1,OP1,F1> const& lhs, real_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3378,7 +3403,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator>(ureal_t<R1,P1,RP1,OP1,F1> const& lhs, ureal_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3390,7 +3415,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator<=(real_t<R1,P1,RP1,OP1,F1> const& lhs, real_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3401,7 +3426,7 @@
/**
* @Returns <c>!(rhs < lhs)</c>.
*/
- inline
+ inline BOOST_CONSTEXPR
bool
operator<=(ureal_t<R1,P1,RP1,OP1,F1> const& lhs, ureal_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3413,7 +3438,7 @@
*/
template <int R1, int P1, typename RP1, typename OP1, typename F1,
int R2, int P2, typename RP2, typename OP2, typename F2>
- inline
+ inline BOOST_CONSTEXPR
bool
operator>=(real_t<R1,P1,RP1,OP1,F1> const& lhs, real_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3424,7 +3449,7 @@
/**
* @Returns <c>!(lhs < rhs)</c>.
*/
- inline
+ inline BOOST_CONSTEXPR
bool
operator>=(ureal_t<R1,P1,RP1,OP1,F1> const& lhs, ureal_t<R2,P2,RP2,OP2,F2> const& rhs)
{
@@ -3437,6 +3462,7 @@
* @Returns the conversion with possible reduced range and loss of resolution.
*/
template <typename To, typename From>
+ BOOST_CONSTEXPR
To number_cast(From const& f)
{
return fixed_point::detail::number_cast<From, To>()(f);
Modified: sandbox/fixed_point/libs/fixed_point/example/ex_xx.cpp
==============================================================================
--- sandbox/fixed_point/libs/fixed_point/example/ex_xx.cpp (original)
+++ sandbox/fixed_point/libs/fixed_point/example/ex_xx.cpp 2012-04-18 17:04:18 EDT (Wed, 18 Apr 2012)
@@ -968,7 +968,8 @@
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
real_t<2, -1> n1( (index(7)));
real_t<2, -1> n2( (index(7)));
- BOOST_TEST(n1 == n2);
+ BOOST_STATIC_CONSTEXPR bool b = n1 == n2;
+ BOOST_TEST(b);
}
{
std::cout << __FILE__ << "[" << __LINE__ << "]" << std::endl;
@@ -1103,6 +1104,7 @@
//std::cout<< float(f1) << std::endl;
}
+
return boost::report_errors();
}
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