On Wednesday, 18 September 2013 at 22:20:45 UTC, H. S. Teoh wrote:
On Wed, Sep 18, 2013 at 10:46:18PM +0200, Namespace wrote:
D's Array length is currently of type size_t, which means on
32 bit
it's an uint and on 64 bit an ulong. This is difficult: What
if I
want to give the length of an array as parameter to some C
functions
which accepts only an int?
What is the right/safe way to do this? A cast? Or is there
something
better?
I like to avoid cast's if they aren't necessary.
If the C function only accepts int, then just use
to!int(array.size). If
the size overflows int, to() will throw an exception which you
can
handle. This is probably the best you can do anyway, since if
the C
function doesn't take anything bigger than int, then there's no
way you
can pass the real size to it.
T
So to!int is safer but slower and a cast would be unsafe but
faster?
