On Wednesday, 9 April 2014 at 08:22:20 UTC, Gary Willoughby wrote:
According to this issue:
https://issues.dlang.org/show_bug.cgi?id=12550
-release disables bounds checking on non-@safe code? Is this
correct?
Correct.
If the above is true and apart from removing asserts what else
does -release do?
release means:
assert/preconditions/invariants are stripped from everything.
bounds checking in @system [*] code is removed.
That's it. (AFAIK). It doesn't actually optimize your code or
anything.
The option "-noboundscheck" can be used to deactivate bounds
checking altogether, in either @safe code, or simply all code in
non-release.
[*] An interesting "hack" is that @trusted code is considered
"system code that can be used in safe code".
As such, if you need safe code that runs fast, you can mark it as
@trusted instead. This will deactivate *its* bounds checking,
without affecting the otherwise global bounds checking
configurations.
There's another hack to mark your code as trusted, and use
"slice.ptr[index]" to bypass bounds checking altogether. Use with
caution :D !
