On Wednesday, 11 February 2015 at 11:26:20 UTC, Dennis Ritchie
wrote:
Tell me, please, is it possible to set an arbitrary condition
conditional compilation at the command prompt, type
DUSE_MYLIB12 and in the code as:
version(USE_MYLIB12) {
.....
}
Specify -version=USE_MYLIB12 on the command line.
And I didn't like Any DeclarationBlock or Statement that is not
compiled in still must be syntactically correct:
http://dlang.org/version.html
It may be that using an optional library code is correct, and
without it not?
No, that's not possible. Syntactically correct != semantically
correct. It just means that the syntax rules of the language are
respected, e.g. parens must be correctly nested (no [} or
something like that). Since D libraries can't affect the syntax
of the language, no code can be syntactically correct only in
that library's presence.
