immutable string literal?
Steven Schveighoffer
schveiguy at yahoo.com
Mon Feb 22 06:40:00 PST 2010
On Mon, 22 Feb 2010 09:27:57 -0500, strtr <strtr at spam.com> wrote:
> Thanks, I understand.
> But, how about a runtime error?
> Isn't a literal placed in easy to identify should-only-read memory?
A segfault is a runtime error. The problem with Windows is it doesn't
throw an error on writes to its data segment (unlike Linux). In reality,
the result of your program is undefined, so don't expect any help from the
compiler/runtime. There's nothing D1 can do about that. In order for D
to intercept that, it would have to instrument every write to memory, and
that would cause performance problems like you wouldn't believe.
The short answer: Just don't do that.
-Steve
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