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Commit 1ab41526 authored by Davis King's avatar Davis King
Browse files

Changed the vector code so that it compiles in cygwin and visual studio. 

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402728
parent aec7c847
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Showing with 107 additions and 94 deletions
dlib/geometry/vector.h
View file @ 1ab41526
...@@ -20,6 +20,105 @@ namespace dlib ...@@ -20,6 +20,105 @@ namespace dlib
> >
class vector; class vector;
// ----------------------------------------------------------------------------------------
template <typename T, typename U, typename enabled = void>
struct vector_assign_helper
{
template <long NR>
static void assign (
vector<T,2>& dest,
const vector<U,NR>& src
)
{
dest.x() = static_cast<T>(src.x());
dest.y() = static_cast<T>(src.y());
}
template <long NR>
static void assign (
vector<T,3>& dest,
const vector<U,NR>& src
)
{
dest.x() = static_cast<T>(src.x());
dest.y() = static_cast<T>(src.y());
dest.z() = static_cast<T>(src.z());
}
template <typename EXP>
static void assign (
vector<T,2>& dest,
const matrix_exp<EXP>& m
)
{
dest.x() = static_cast<T>(m(0));
dest.y() = static_cast<T>(m(1));
}
template <typename EXP>
static void assign (
vector<T,3>& dest,
const matrix_exp<EXP>& m
)
{
dest.x() = static_cast<T>(m(0));
dest.y() = static_cast<T>(m(1));
dest.z() = static_cast<T>(m(2));
}
};
// This is an overload for the case where you are converting from a floating point
// type to an integral type. These overloads make sure values are rounded to
// the nearest integral value.
template <typename T, typename U>
struct vector_assign_helper<T,U, typename enable_if_c<std::numeric_limits<T>::is_integer == true &&
std::numeric_limits<U>::is_integer == false>::type>
{
template <long NR>
static void assign (
vector<T,2>& dest,
const vector<U,NR>& src
)
{
dest.x() = static_cast<T>(std::floor(src.x() + 0.5));
dest.y() = static_cast<T>(std::floor(src.y() + 0.5));
}
template <long NR>
static void assign (
vector<T,3>& dest,
const vector<U,NR>& src
)
{
dest.x() = static_cast<T>(std::floor(src.x() + 0.5));
dest.y() = static_cast<T>(std::floor(src.y() + 0.5));
dest.z() = static_cast<T>(std::floor(src.z() + 0.5));
}
template <typename EXP>
static void assign (
vector<T,3>& dest,
const matrix_exp<EXP>& m
)
{
dest.x() = static_cast<T>(std::floor(m(0) + 0.5));
dest.y() = static_cast<T>(std::floor(m(1) + 0.5));
dest.z() = static_cast<T>(std::floor(m(2) + 0.5));
}
template <typename EXP>
static void assign (
vector<T,2>& dest,
const matrix_exp<EXP>& m
)
{
dest.x() = static_cast<T>(std::floor(m(0) + 0.5));
dest.y() = static_cast<T>(std::floor(m(1) + 0.5));
}
};
// ---------------------------------------------------------------------------------------- // ----------------------------------------------------------------------------------------
template <typename T> template <typename T>
...@@ -121,35 +220,7 @@ namespace dlib ...@@ -121,35 +220,7 @@ namespace dlib
// --------------------------------------- // ---------------------------------------
template <typename EXP> template <typename EXP>
const typename enable_if_c<std::numeric_limits<T>::is_integer == true && vector& operator = (
std::numeric_limits<typename EXP::type>::is_integer == false, vector>::type&
operator = (
const matrix_exp<EXP>& m
)
{
// you can only assign vectors with 3 elements to a dlib::vector<T,3> object
COMPILE_TIME_ASSERT(EXP::NR*EXP::NC == 3 || EXP::NR*EXP::NC == 0);
// make sure requires clause is not broken
DLIB_ASSERT((m.nr() == 1 || m.nc() == 1) && (m.size() == 3),
"\t vector(const matrix_exp& m)"
<< "\n\t the given matrix is of the wrong size"
<< "\n\t m.nr(): " << m.nr()
<< "\n\t m.nc(): " << m.nc()
<< "\n\t m.size(): " << m.size()
<< "\n\t this: " << this
);
x() = std::floor(m(0)+0.5);
y() = std::floor(m(1)+0.5);
z() = std::floor(m(2)+0.5);
return *this;
}
template <typename EXP>
const typename disable_if_c<std::numeric_limits<T>::is_integer == true &&
std::numeric_limits<typename EXP::type>::is_integer == false, vector>::type&
operator = (
const matrix_exp<EXP>& m const matrix_exp<EXP>& m
) )
{ {
...@@ -166,35 +237,18 @@ namespace dlib ...@@ -166,35 +237,18 @@ namespace dlib
<< "\n\t this: " << this << "\n\t this: " << this
); );
x() = m(0); vector_assign_helper<T, typename EXP::type>::assign(*this, m);
y() = m(1);
z() = m(2);
return *this; return *this;
} }
// --------------------------------------- // ---------------------------------------
template <typename U> template <typename U>
const typename enable_if_c<std::numeric_limits<T>::is_integer == true && std::numeric_limits<U>::is_integer == false, vector>::type& vector& operator = (
operator = (
const vector<U,3>& item const vector<U,3>& item
) )
{ {
x() = static_cast<T>(std::floor(item.x() + 0.5)); vector_assign_helper<T,U>::assign(*this, item);
y() = static_cast<T>(std::floor(item.y() + 0.5));
z() = static_cast<T>(std::floor(item.z() + 0.5));
return *this;
}
template <typename U>
const typename disable_if_c<std::numeric_limits<T>::is_integer == true && std::numeric_limits<U>::is_integer == false, vector>::type&
operator = (
const vector<U,3>& item
)
{
x() = static_cast<T>(item.x());
y() = static_cast<T>(item.y());
z() = static_cast<T>(item.z());
return *this; return *this;
} }
...@@ -520,9 +574,7 @@ namespace dlib ...@@ -520,9 +574,7 @@ namespace dlib
// --------------------------------------- // ---------------------------------------
template <typename EXP> template <typename EXP>
const typename enable_if_c<std::numeric_limits<T>::is_integer == true && vector& operator = (
std::numeric_limits<typename EXP::type>::is_integer == false, vector>::type&
operator = (
const matrix_exp<EXP>& m const matrix_exp<EXP>& m
) )
{ {
...@@ -539,57 +591,18 @@ namespace dlib ...@@ -539,57 +591,18 @@ namespace dlib
<< "\n\t this: " << this << "\n\t this: " << this
); );
x() = std::floor(m(0)+0.5); vector_assign_helper<T, typename EXP::type>::assign(*this, m);
y() = std::floor(m(1)+0.5);
return *this;
}
template <typename EXP>
const typename disable_if_c<std::numeric_limits<T>::is_integer == true &&
std::numeric_limits<typename EXP::type>::is_integer == false, vector>::type&
operator = (
const matrix_exp<EXP>& m
)
{
// you can only assign vectors with 2 elements to a dlib::vector<T,2> object
COMPILE_TIME_ASSERT(EXP::NR*EXP::NC == 2 || EXP::NR*EXP::NC == 0);
// make sure requires clause is not broken
DLIB_ASSERT((m.nr() == 1 || m.nc() == 1) && (m.size() == 2),
"\t vector(const matrix_exp& m)"
<< "\n\t the given matrix is of the wrong size"
<< "\n\t m.nr(): " << m.nr()
<< "\n\t m.nc(): " << m.nc()
<< "\n\t m.size(): " << m.size()
<< "\n\t this: " << this
);
x() = m(0);
y() = m(1);
return *this; return *this;
} }
// --------------------------------------- // ---------------------------------------
template <typename U> template <typename U>
const typename enable_if_c<std::numeric_limits<T>::is_integer == true && std::numeric_limits<U>::is_integer == false, vector>::type& vector& operator = (
operator = (
const vector<U,2>& item
)
{
x() = static_cast<T>(std::floor(item.x() + 0.5));
y() = static_cast<T>(std::floor(item.y() + 0.5));
return *this;
}
template <typename U>
const typename disable_if_c<std::numeric_limits<T>::is_integer == true && std::numeric_limits<U>::is_integer == false, vector>::type&
operator = (
const vector<U,2>& item const vector<U,2>& item
) )
{ {
x() = static_cast<T>(item.x()); vector_assign_helper<T,U>::assign(*this, item);
y() = static_cast<T>(item.y());
return *this; return *this;
} }
......
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