It copies an array into another one.
[out] Destination array
[in] Source array
[in] Starting index from the destination array. By default, start index is 0.
[in] Starting index for the source array. By default, start index is 0.
[in] Number of elements that should be copied. By default, the whole array is copied (count=WHOLE_ARRAY).
It returns the number of copied elements.
If count<0 or count>src_size-src_start, all the remaining array part is copied. Arrays are copied from left to right. For series arrays, the starting position is correctly defined adjusted for copying from left to right.
If arrays are of different types, during copying it tries to transform each element of a source array into the type of the destination array. A string array can be copied into a string array only. Array of classes and structures containing objects that require initialization aren't copied. An array of structures can be copied into an array of the same type only.
For dynamic arrays with indexing as in timeseries, the size of a destination array is automatically increased to the amount of copied data (if the latter exceeds the array size). The destination array size is not decreased automatically.