On Thursday, 28 November 2013 at 12:31:11 UTC, Gary Willoughby
wrote:
Does selective imports have an effect on the resulting
executable? For example if i included the following at the top
of my source to only include one function from a library:
import std.algorithm : reduce;
Would it have any impact on the resulting executable? i.e. only
include compiled code for the selected functions?
If i imported the whole library like this:
import std.algorithm;
Is it more wasteful? Not as optimised? Any draw backs? Bigger
executable?
No, selective imports are just matter of namespace hygiene and
code readability.
Scope-local imports , however, can impact resulting executable a
lot if used inside templated scopes (nothing will be imported at
all if it is not instantiated)