Copies the content of source into target and returns the *filled* part of target. This is the counterpart of std.algorithm.mutation.copy.
Preconditions: target shall have enough room to accommodate the entirety of source.
an input range
an output range with slicing and length
The filled part of target
See Implementation
Copies the content of source into target and returns the *filled* part of target. This is the counterpart of std.algorithm.mutation.copy.
Preconditions: target shall have enough room to accommodate the entirety of source.