28 Numerics library [numerics]

28.9 Basic linear algebra algorithms [linalg]

28.9.13 BLAS 1 algorithms [linalg.algs.blas1]

28.9.13.5 Copy elements of one matrix or vector into another [linalg.algs.blas1.copy]

template<in-object InObj, out-object OutObj>
  void copy(InObj x, OutObj y);
template<class ExecutionPolicy, in-object InObj, out-object OutObj>
  void copy(ExecutionPolicy&& exec, InObj x, OutObj y);

[Note 1:

These functions correspond to the BLAS function xCOPY[bib].

— end note]

Constraints: x.rank() equals y.rank().

Mandates: For all r in the range

[0, x.rank())

, compatible-static-extents<InObj, OutObj>(r, r) is true.

Preconditions: x.extents() equals y.extents().

Effects: Assigns each element of x to the corresponding element of y.