81 lines
1.5 KiB
C++
81 lines
1.5 KiB
C++
#include "vector.hpp"
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#include "debug.hpp"
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#include <numeric>
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using namespace maths;
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/* Constructors */
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vector::vector (const std::initializer_list<double> &_data):
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m_data (_data)
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{ ; }
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vector::vector (unsigned int _size):
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m_data (_size)
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{ ; }
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vector::vector (const double *restrict _data,
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unsigned int _size):
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m_data (_size)
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{ std::copy (_data, _data + _size, m_data.begin ()); }
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vector::vector (const vector &rhs):
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m_data (rhs.m_data)
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{ ; }
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vector::vector (const vector &&rhs):
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m_data (std::move (rhs.m_data))
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{ ; }
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vector::~vector (void)
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{ ; }
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/* element accessors */
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const double*
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vector::data (void) const
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{ return &m_data[0]; }
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double &
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vector::operator[] (unsigned int offset)
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{ return m_data[offset]; }
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const double&
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vector::operator[] (unsigned int offset) const
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{ return m_data[offset]; }
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unsigned int
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vector::size (void) const
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{ return m_data.size (); }
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/* dot and cross products */
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double vector::dot (const double *restrict A,
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const double *restrict B,
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unsigned int size)
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{ return std::inner_product(A, A + size, B, 0.0); }
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vector vector::cross (const double *restrict A,
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const double *restrict B,
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unsigned int size) {
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check_hard (size == 3);
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return vector ({ A[1] * B[2] - A[2] * B[1],
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A[2] * B[0] - A[0] * B[2],
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A[0] * B[1] - A[1] * B[0] });
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}
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