raisim::DynamicArray

class · #include <raisim/math.hpp>

Derived by: raisim::MatDyn, raisim::VecDyn

Owning heap buffer of doubles; the common base of VecDyn and MatDyn.

On Linux and macOS the buffer is 32-byte aligned. Copy construction and copy assignment of this base class deliberately do not copy the data (the copy constructor leaves the new object empty, copy assignment is a no-op); VecDyn and MatDyn implement their own deep copies. Moving transfers ownership of the buffer.

Constructors & destructor

DynamicArray

DynamicArray() = default

DynamicArray(const DynamicArray &)

Does not copy the data: the new array is empty. Derived classes implement the deep copy.

DynamicArray(DynamicArray &&other) noexcept

Takes ownership of other's buffer and leaves other empty.

Parameters

Parameter	Description
other (in, out)	array to move from

~DynamicArray

~DynamicArray()

Public member functions

operator=

DynamicArray &operator=(const DynamicArray &)

No-op: the data is not copied. Derived classes implement the deep copy.

Returns *this

DynamicArray &operator=(DynamicArray &&other) noexcept

Releases this buffer, then takes ownership of other's buffer and leaves other empty.

Parameters

Parameter	Description
other (in, out)	array to move from

Returns *this

ElementRef<DynamicArray> operator=(double a)

Starts an Eigen-style comma initializer, e.g. array = 1., 2., 3.;, which writes consecutive elements. The buffer must already hold enough elements; no bounds check is done.

Parameters

Parameter	Description
a (in)	value of the first element

Returns proxy that receives the following elements

ptr

double *ptr()

Returns pointer to the first element.

const double *ptr() const

Returns pointer to the first element.

data

double *data()

Returns pointer to the first element (Eigen-compatible name).

const double *data() const

Returns pointer to the first element (Eigen-compatible name).

operator[]

double operator[](size_t i) const

Parameters

Parameter	Description
i (in)	element index

Returns element i (no bounds check).

double &operator[](size_t i)

Parameters

Parameter	Description
i (in)	element index

Returns reference to element i (no bounds check).

Public attributes

v

double *v

Raw data pointer (nullptr until allocated).