Move VecBase stuff to its own .inl file.

This commit is contained in:
King_DuckZ 2018-07-27 23:22:21 +01:00
parent e0e167b658
commit 08378698b8
5 changed files with 304 additions and 271 deletions

View file

@ -19,6 +19,8 @@
#include "implem_vec_common.hpp"
#include "sequence_bt.hpp"
#include <type_traits>
#include <utility>
#include <functional>
#if defined VWR_OUTER_NAMESPACE
namespace VWR_OUTER_NAMESPACE {
@ -107,9 +109,63 @@ namespace vwr {
vector_type m_wrapped;
};
template <
typename T,
typename U,
size_type S=(
static_cast<int>(VectorWrapperInfo<T>::dimensions) < static_cast<int>(VectorWrapperInfo<U>::dimensions) ?
static_cast<int>(VectorWrapperInfo<T>::dimensions)
:
static_cast<int>(VectorWrapperInfo<U>::dimensions)
)
> struct have_compat_offsets;
template <typename T, typename U> struct have_compat_offsets<T, U, 1> {
enum {
value = true
};
};
template <typename T, typename U> struct have_compat_offsets<T, U, 2> {
enum {
value =
VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value
};
};
template <typename T, typename U> struct have_compat_offsets<T, U, 3> {
enum {
value =
VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value and
VectorWrapperInfo<T>::offset_z - min_offset<T>::value == VectorWrapperInfo<U>::offset_z - min_offset<U>::value
};
};
template <typename T, typename U> struct have_compat_offsets<T, U, 4> {
enum {
value =
VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value and
VectorWrapperInfo<T>::offset_z - min_offset<T>::value == VectorWrapperInfo<U>::offset_z - min_offset<U>::value and
VectorWrapperInfo<T>::offset_w - min_offset<T>::value == VectorWrapperInfo<U>::offset_w - min_offset<U>::value
};
};
template <typename T, typename U>
struct have_compat_layout {
enum {
value =
HasOffsetXEnum<VectorWrapperInfo<T>>::value and
HasOffsetXEnum<VectorWrapperInfo<U>>::value and
have_compat_offsets<T, U>::value
};
};
} //namespace implem
template <typename V> struct is_castable_to { };
} //namespace vwr
#if defined VWR_OUTER_NAMESPACE
} //namespace VWR_OUTER_NAMESPACE
#endif
#include "implem_vec_base.inl"

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@ -0,0 +1,189 @@
/*
* Copyright 2015-2017 Michele "King_DuckZ" Santullo
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined VWR_OUTER_NAMESPACE
namespace VWR_OUTER_NAMESPACE {
#endif
namespace vwr {
namespace implem {
template <typename T, bool=HasCastIgnoreTrailingPropertiesEnum<VectorWrapperInfo<T>>::value> struct IsCastIgnoreTrailingPropertiesSet;
template <typename T> struct IsCastIgnoreTrailingPropertiesSet<T, true> { static const bool value = static_cast<bool>(VectorWrapperInfo<T>::cast_ignore_trailing_properties); };
template <typename T> struct IsCastIgnoreTrailingPropertiesSet<T, false> { static const bool value = false; };
template <typename V>
template <typename T>
VecBase<V>::VecBase (const T& parInit, typename std::enable_if<std::is_same<T, scalar_type>::value and not std::is_same<scalar_type, vector_type>::value, bool>::type) {
for (size_type z = 0; z < VectorWrapperInfo<V>::dimensions; ++z) {
VecGetter<V>::get_at(m_wrapped, z) = parInit;
}
}
template <typename V>
VecBase<V>::VecBase (const vector_type& parInit) :
m_wrapped(parInit)
{
}
template <typename V>
template <typename... Args>
VecBase<V>::VecBase (scalar_type parX, scalar_type parY, Args... parArgs) {
static_assert(2 + sizeof...(Args) == dimensions, "Wrong number of parameters received");
VecGetter<V>::get_at(m_wrapped, 0) = parX;
VecGetter<V>::get_at(m_wrapped, 1) = parY;
assign_values(bt::number_range<size_type, 2, dimensions>(), std::forward<Args>(parArgs)...);
}
template <typename V>
template <size_type... I, typename... Args>
void VecBase<V>::assign_values (const bt::number_seq<size_type, I...>&, Args... parArgs) {
static_assert(sizeof...(I) == sizeof...(Args), "Argument count and indices count mismatch");
std::initializer_list<scalar_type> t {
(VecGetter<V>::get_at(m_wrapped, I) = parArgs)...
};
static_cast<void>(t);
}
template <typename V>
template <typename Op, typename V2, size_type... I>
void VecBase<V>::assign_values_op (Op parOp, const bt::number_seq<size_type, I...>& parSeq, const VecBase<V2>& parOther) {
this->assign_values(parSeq, parOp((*this)[I], parOther[I])...);
}
template <typename V>
template <typename Op, size_type... I>
void VecBase<V>::assign_values_op_scalar (Op parOp, const bt::number_seq<size_type, I...>& parSeq, const scalar_type& parOther) {
this->assign_values(parSeq, parOp((*this)[I], parOther)...);
}
template <typename V>
auto VecBase<V>::operator[] (size_type parIndex) -> scalar_type& {
return VecGetter<V>::get_at(m_wrapped, parIndex);
}
template <typename V>
auto VecBase<V>::operator[] (size_type parIndex) const -> const scalar_type& {
return VecGetter<V>::get_at(const_cast<vector_type&>(m_wrapped), parIndex);
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() const -> const typename std::enable_if<is_vec<V2>::value and directly_convertible<V, V2>::value, V2>::type& {
static_assert(sizeof(V2) <= sizeof(VecBase<V>) - min_offset<V>::value, "V2 must fit in V starting from the first coordinate");
static_assert(std::is_standard_layout<V2>::value, "V2 must be a standard layout type");
static_assert(min_offset<typename is_vec<V2>::vector_type>::value == 0, "V2 must not have any properties before the first coordinate");
static_assert(have_compat_layout<V, typename is_vec<V2>::vector_type>::value, "V is not suitable for casting to V2");
//Assert that V2 won't stomp on part of V's data, unless the user
//has explicitly said he doesn't care.
static_assert((sizeof(typename VectorWrapperInfo<typename is_vec<V2>::vector_type>::scalar_type) * VectorWrapperInfo<typename is_vec<V2>::vector_type>::dimensions == sizeof(V2)) or
IsCastIgnoreTrailingPropertiesSet<typename is_vec<V2>::vector_type>::value,
"V2 must not have any properties past the last coordinate");
static_assert(alignof(typename VectorWrapperInfo<V>::scalar_type) == alignof(V2), "Casting to V2 would give you a misaligned variable");
return *reinterpret_cast<const V2*>(
reinterpret_cast<const char*>(this) + VectorWrapperInfo<V>::offset_x
);
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() -> typename std::enable_if<is_vec<V2>::value and directly_convertible<V, V2>::value, V2>::type& {
return const_cast<V2&>(const_cast<const VecBase<V>*>(this)->cast<V2>());
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() const -> const typename std::enable_if<is_vec<V2>::value and not directly_convertible<V, V2>::value, V2>::type& {
static_assert(std::is_standard_layout<V2>::value, "V2 must be a standard layout type");
typedef typename is_vec<V2>::vector_type v2_type;
static_assert(std::is_base_of<is_castable_to<typename VectorWrapperInfo<v2_type>::vector_type>, VectorWrapperInfo<V>>::value, "Casting for this type has to be explicitly enabled");
//Assert that V2 won't stomp on part of V's data, unless the user
//has explicitly said he doesn't care.
static_assert((sizeof(typename VectorWrapperInfo<typename is_vec<V2>::vector_type>::scalar_type) * VectorWrapperInfo<typename is_vec<V2>::vector_type>::dimensions == sizeof(V2)) or
IsCastIgnoreTrailingPropertiesSet<typename is_vec<V2>::vector_type>::value,
"V2 must not have any properties past the last coordinate");
static_assert(alignof(typename VectorWrapperInfo<V>::scalar_type) == alignof(V2), "Casting to V2 would give you a misaligned variable");
return *reinterpret_cast<const V2*>(
reinterpret_cast<const char*>(&(*this)[0])
);
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() -> typename std::enable_if<is_vec<V2>::value and not directly_convertible<V, V2>::value, V2>::type& {
return const_cast<V2&>(const_cast<const VecBase<V>*>(this)->cast<V2>());
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator+= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::plus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator-= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::minus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator*= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::multiplies<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator/= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::divides<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator+= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::plus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator-= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::minus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator*= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::multiplies<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator/= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::divides<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
} //namespace implem
} //namespace vwr
#if defined VWR_OUTER_NAMESPACE
} //namespace VWR_OUTER_NAMESPACE
#endif

View file

@ -18,25 +18,75 @@
#include "size_type.hpp"
#include "has_method.hpp"
#include <type_traits>
#if defined VWR_OUTER_NAMESPACE
namespace VWR_OUTER_NAMESPACE {
#endif
namespace vwr {
template <typename V>
struct VectorWrapperInfo;
template <typename V, size_type S=VectorWrapperInfo<V>::dimensions>
class Vec;
namespace implem {
define_has_typedef(lower_vector_type, LowerVec);
define_has_typedef(higher_vector_type, HigherVec);
define_has_enum(offset_x, OffsetX);
define_has_method(get_at, GetAt);
define_has_enum(cast_ignore_trailing_properties, CastIgnoreTrailingProperties);
template <typename T, bool=HasOffsetXEnum<VectorWrapperInfo<T>>::value and std::is_standard_layout<T>::value>
struct VecGetter;
template <typename T>
struct VecGetter<T, true> {
static typename VectorWrapperInfo<T>::scalar_type& get_at ( T& parVec, size_type parIndex );
};
template <typename T>
struct VecGetter<T, false> {
private:
static_assert(HasGetAtMethod<VectorWrapperInfo<T>>::value, "You must provide a get_at() static method for this vector_type");
typedef typename VectorWrapperInfo<T>::scalar_type scalar_type;
typedef T vector_type;
using get_at_func = decltype(&VectorWrapperInfo<T>::get_at)(size_type, vector_type&);
using get_at_rettype = typename std::result_of<get_at_func>::type;
static_assert(not std::is_rvalue_reference<get_at_rettype>::value, "rvalue ref return types not implemented");
static_assert(std::is_lvalue_reference<get_at_rettype>::value, "Read-only vectors not implemented");
public:
static get_at_rettype get_at ( T& parVec, size_type parIndex );
};
template <typename T, size_type I> struct get_offset_enum_from_index;
template <typename T> struct get_offset_enum_from_index<T, 0> {
enum { value = VectorWrapperInfo<T>::offset_x };
};
template <typename T> struct get_offset_enum_from_index<T, 1> {
enum { value = VectorWrapperInfo<T>::offset_y };
};
template <typename T> struct get_offset_enum_from_index<T, 2> {
enum { value = VectorWrapperInfo<T>::offset_z };
};
template <typename T> struct get_offset_enum_from_index<T, 3> {
enum { value = VectorWrapperInfo<T>::offset_w };
};
template <typename T, size_type S=VectorWrapperInfo<T>::dimensions> struct min_offset {
enum {
value = (
static_cast<int>(get_offset_enum_from_index<T, S-1>::value) < static_cast<int>(min_offset<T, S-1>::value) ?
static_cast<int>(get_offset_enum_from_index<T, S-1>::value) :
static_cast<int>(min_offset<T, S-1>::value)
)
};
};
template <typename T> struct min_offset<T, 1> {
enum { value = get_offset_enum_from_index<T, 0>::value };
};
} //namespace implem
template <typename V>
struct VectorWrapperInfo;
template <typename V, size_type S=VectorWrapperInfo<V>::dimensions>
class Vec;
} //namespace vwr
#if defined VWR_OUTER_NAMESPACE

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@ -16,14 +16,15 @@
#pragma once
#include "implem_vec_base.hpp"
#include "implem_vec_common.hpp"
#include "sequence_bt.hpp"
#include "size_type.hpp"
#include "implem_vec_base.hpp"
#include "implem_vec_common.hpp"
#include <ciso646>
#include <type_traits>
#include <array>
#include <cassert>
#include <functional>
#if defined VWR_OUTER_NAMESPACE
namespace VWR_OUTER_NAMESPACE {
@ -42,83 +43,6 @@ namespace vwr {
Vec<V1>& assign ( Vec<V1, D>& parLeft, const Vec<V2, D>& parRight );
#endif
template <typename T, size_type I> struct get_offset_enum_from_index;
template <typename T> struct get_offset_enum_from_index<T, 0> {
enum { value = VectorWrapperInfo<T>::offset_x };
};
template <typename T> struct get_offset_enum_from_index<T, 1> {
enum { value = VectorWrapperInfo<T>::offset_y };
};
template <typename T> struct get_offset_enum_from_index<T, 2> {
enum { value = VectorWrapperInfo<T>::offset_z };
};
template <typename T> struct get_offset_enum_from_index<T, 3> {
enum { value = VectorWrapperInfo<T>::offset_w };
};
template <typename T, size_type S=VectorWrapperInfo<T>::dimensions> struct min_offset {
enum {
value = (
static_cast<int>(get_offset_enum_from_index<T, S-1>::value) < static_cast<int>(min_offset<T, S-1>::value) ?
static_cast<int>(get_offset_enum_from_index<T, S-1>::value) :
static_cast<int>(min_offset<T, S-1>::value)
)
};
};
template <typename T> struct min_offset<T, 1> {
enum { value = get_offset_enum_from_index<T, 0>::value };
};
template <
typename T,
typename U,
size_type S=(
static_cast<int>(VectorWrapperInfo<T>::dimensions) < static_cast<int>(VectorWrapperInfo<U>::dimensions) ?
static_cast<int>(VectorWrapperInfo<T>::dimensions)
:
static_cast<int>(VectorWrapperInfo<U>::dimensions)
)
> struct have_compat_offsets;
template <typename T, typename U> struct have_compat_offsets<T, U, 1> {
enum {
value = true
};
};
template <typename T, typename U> struct have_compat_offsets<T, U, 2> {
enum {
value =
VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value
};
};
template <typename T, typename U> struct have_compat_offsets<T, U, 3> {
enum {
value =
VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value and
VectorWrapperInfo<T>::offset_z - min_offset<T>::value == VectorWrapperInfo<U>::offset_z - min_offset<U>::value
};
};
template <typename T, typename U> struct have_compat_offsets<T, U, 4> {
enum {
value =
VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value and
VectorWrapperInfo<T>::offset_z - min_offset<T>::value == VectorWrapperInfo<U>::offset_z - min_offset<U>::value and
VectorWrapperInfo<T>::offset_w - min_offset<T>::value == VectorWrapperInfo<U>::offset_w - min_offset<U>::value
};
};
template <typename T, typename U>
struct have_compat_layout {
enum {
value =
HasOffsetXEnum<VectorWrapperInfo<T>>::value and
HasOffsetXEnum<VectorWrapperInfo<U>>::value and
have_compat_offsets<T, U>::value
};
};
template <typename T, size_type S=VectorWrapperInfo<T>::dimensions>
struct offsets_array_wrapper {
template <size_type... I>
@ -127,28 +51,6 @@ namespace vwr {
const std::array<unsigned int, S> offsets;
};
template <typename T, bool=HasOffsetXEnum<VectorWrapperInfo<T>>::value and std::is_standard_layout<T>::value>
struct VecGetter;
template <typename T>
struct VecGetter<T, true> {
static typename VectorWrapperInfo<T>::scalar_type& get_at ( T& parVec, size_type parIndex );
};
template <typename T>
struct VecGetter<T, false> {
private:
static_assert(HasGetAtMethod<VectorWrapperInfo<T>>::value, "You must provide a get_at() static method for this vector_type");
typedef typename VectorWrapperInfo<T>::scalar_type scalar_type;
typedef T vector_type;
using get_at_func = decltype(&VectorWrapperInfo<T>::get_at)(size_type, vector_type&);
using get_at_rettype = typename std::result_of<get_at_func>::type;
static_assert(not std::is_rvalue_reference<get_at_rettype>::value, "rvalue ref return types not implemented");
static_assert(std::is_lvalue_reference<get_at_rettype>::value, "Read-only vectors not implemented");
public:
static get_at_rettype get_at ( T& parVec, size_type parIndex );
};
template <typename V, bool Enabled> struct Vec1Promotion;
template <typename V> struct Vec1Promotion<V, false> { };
template <typename V> struct Vec1Promotion<V, true> {
@ -265,8 +167,6 @@ namespace vwr {
Vec<typename std::common_type<V1, V2>::type> binary_op ( const Vec<V1>& parLeft, const Vec<V2>& parRight, Op parOp, const Vec<typename std::common_type<V1, V2>::type>& parLastVal, bt::number_seq<size_type, I...> );
} //namespace implem
template <typename V> struct is_castable_to { };
template <typename V, size_type S>
class Vec : public implem::VecBase<V> {
public:

View file

@ -20,168 +20,6 @@ namespace VWR_OUTER_NAMESPACE {
namespace vwr {
namespace implem {
template <typename T, bool=HasCastIgnoreTrailingPropertiesEnum<VectorWrapperInfo<T>>::value> struct IsCastIgnoreTrailingPropertiesSet;
template <typename T> struct IsCastIgnoreTrailingPropertiesSet<T, true> { static const bool value = static_cast<bool>(VectorWrapperInfo<T>::cast_ignore_trailing_properties); };
template <typename T> struct IsCastIgnoreTrailingPropertiesSet<T, false> { static const bool value = false; };
template <typename V>
template <typename T>
VecBase<V>::VecBase (const T& parInit, typename std::enable_if<std::is_same<T, scalar_type>::value and not std::is_same<scalar_type, vector_type>::value, bool>::type) {
for (size_type z = 0; z < VectorWrapperInfo<V>::dimensions; ++z) {
VecGetter<V>::get_at(m_wrapped, z) = parInit;
}
}
template <typename V>
VecBase<V>::VecBase (const vector_type& parInit) :
m_wrapped(parInit)
{
}
template <typename V>
template <typename... Args>
VecBase<V>::VecBase (scalar_type parX, scalar_type parY, Args... parArgs) {
static_assert(2 + sizeof...(Args) == dimensions, "Wrong number of parameters received");
VecGetter<V>::get_at(m_wrapped, 0) = parX;
VecGetter<V>::get_at(m_wrapped, 1) = parY;
assign_values(bt::number_range<size_type, 2, dimensions>(), std::forward<Args>(parArgs)...);
}
template <typename V>
template <size_type... I, typename... Args>
void VecBase<V>::assign_values (const bt::number_seq<size_type, I...>&, Args... parArgs) {
static_assert(sizeof...(I) == sizeof...(Args), "Argument count and indices count mismatch");
std::initializer_list<scalar_type> t {
(VecGetter<V>::get_at(m_wrapped, I) = parArgs)...
};
static_cast<void>(t);
}
template <typename V>
template <typename Op, typename V2, size_type... I>
void VecBase<V>::assign_values_op (Op parOp, const bt::number_seq<size_type, I...>& parSeq, const VecBase<V2>& parOther) {
this->assign_values(parSeq, parOp((*this)[I], parOther[I])...);
}
template <typename V>
template <typename Op, size_type... I>
void VecBase<V>::assign_values_op_scalar (Op parOp, const bt::number_seq<size_type, I...>& parSeq, const scalar_type& parOther) {
this->assign_values(parSeq, parOp((*this)[I], parOther)...);
}
template <typename V>
auto VecBase<V>::operator[] (size_type parIndex) -> scalar_type& {
return VecGetter<V>::get_at(m_wrapped, parIndex);
}
template <typename V>
auto VecBase<V>::operator[] (size_type parIndex) const -> const scalar_type& {
return VecGetter<V>::get_at(const_cast<vector_type&>(m_wrapped), parIndex);
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() const -> const typename std::enable_if<is_vec<V2>::value and directly_convertible<V, V2>::value, V2>::type& {
static_assert(sizeof(V2) <= sizeof(VecBase<V>) - min_offset<V>::value, "V2 must fit in V starting from the first coordinate");
static_assert(std::is_standard_layout<V2>::value, "V2 must be a standard layout type");
static_assert(min_offset<typename is_vec<V2>::vector_type>::value == 0, "V2 must not have any properties before the first coordinate");
static_assert(have_compat_layout<V, typename is_vec<V2>::vector_type>::value, "V is not suitable for casting to V2");
//Assert that V2 won't stomp on part of V's data, unless the user
//has explicitly said he doesn't care.
static_assert((sizeof(typename VectorWrapperInfo<typename is_vec<V2>::vector_type>::scalar_type) * VectorWrapperInfo<typename is_vec<V2>::vector_type>::dimensions == sizeof(V2)) or
IsCastIgnoreTrailingPropertiesSet<typename is_vec<V2>::vector_type>::value,
"V2 must not have any properties past the last coordinate");
static_assert(alignof(typename VectorWrapperInfo<V>::scalar_type) == alignof(V2), "Casting to V2 would give you a misaligned variable");
return *reinterpret_cast<const V2*>(
reinterpret_cast<const char*>(this) + VectorWrapperInfo<V>::offset_x
);
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() -> typename std::enable_if<is_vec<V2>::value and directly_convertible<V, V2>::value, V2>::type& {
return const_cast<V2&>(const_cast<const VecBase<V>*>(this)->cast<V2>());
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() const -> const typename std::enable_if<is_vec<V2>::value and not directly_convertible<V, V2>::value, V2>::type& {
static_assert(std::is_standard_layout<V2>::value, "V2 must be a standard layout type");
typedef typename is_vec<V2>::vector_type v2_type;
static_assert(std::is_base_of<is_castable_to<typename VectorWrapperInfo<v2_type>::vector_type>, VectorWrapperInfo<V>>::value, "Casting for this type has to be explicitly enabled");
//Assert that V2 won't stomp on part of V's data, unless the user
//has explicitly said he doesn't care.
static_assert((sizeof(typename VectorWrapperInfo<typename is_vec<V2>::vector_type>::scalar_type) * VectorWrapperInfo<typename is_vec<V2>::vector_type>::dimensions == sizeof(V2)) or
IsCastIgnoreTrailingPropertiesSet<typename is_vec<V2>::vector_type>::value,
"V2 must not have any properties past the last coordinate");
static_assert(alignof(typename VectorWrapperInfo<V>::scalar_type) == alignof(V2), "Casting to V2 would give you a misaligned variable");
return *reinterpret_cast<const V2*>(
reinterpret_cast<const char*>(&(*this)[0])
);
}
template <typename V>
template <typename V2>
auto VecBase<V>::cast() -> typename std::enable_if<is_vec<V2>::value and not directly_convertible<V, V2>::value, V2>::type& {
return const_cast<V2&>(const_cast<const VecBase<V>*>(this)->cast<V2>());
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator+= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::plus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator-= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::minus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator*= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::multiplies<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
template <typename V2>
VecBase<V>& VecBase<V>::operator/= (const VecBase<V2>& parOther) {
static_assert(static_cast<int>(VectorWrapperInfo<V>::dimensions) == static_cast<int>(VectorWrapperInfo<V2>::dimensions), "Dimensions mismatch");
this->assign_values_op(std::divides<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator+= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::plus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator-= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::minus<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator*= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::multiplies<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename V>
VecBase<V>& VecBase<V>::operator/= (const scalar_type& parOther) {
this->assign_values_op_scalar(std::divides<scalar_type>(), bt::number_range<size_type, 0, VectorWrapperInfo<V>::dimensions>(), parOther);
return *this;
}
template <typename T>
typename VectorWrapperInfo<T>::scalar_type& VecGetter<T, true>::get_at (T& parVec, size_type parIndex) {
assert(parIndex < VectorWrapperInfo<T>::dimensions);