On Saturday, 4 October 2014 at 10:37:40 UTC, eles wrote:
On Saturday, 4 October 2014 at 10:27:18 UTC, John Colvin wrote:
On Saturday, 4 October 2014 at 04:02:46 UTC, eles wrote:
On Friday, 3 October 2014 at 15:47:33 UTC, John Colvin wrote:
On Friday, 3 October 2014 at 15:44:16 UTC, eles wrote:
So the compiler has no way of knowing whether you've forgotten
to include a definition, or whether it's simply sitting in
some other object file / library / whatever. The linker,
however, can know, hence the linker error.
No "extern" required?...
nope, no extern required. The extern you are referring to is the
storage class http://dlang.org/declaration.html#extern and is for
variables.
This seem to allow an entire class of problems, by linking
against long-time forgotten functions...
It's the core functionality that allows you to link to a function
in a library without having the entire source available. You have
a declaration, but the implementation is in another object file /
library.
D is slightly tighter than C wrt all this. In C, you can just
call functions without even having a declaration, the compiler
will assume the argument types from what you passed in. A
forgotten #include and compiling without warnings = horrific bugs
in C. In D the declaration is required.
