Is there any real reason to use "const"?

[H. S. Teoh]

On Mon, Jan 24, 2022 at 12:02:11PM -0800, Walter Bright via Digitalmars-d wrote:
> On 1/24/2022 8:43 AM, rempas wrote:
> > Read only memory? So in the same place where string literals are
> > placed?  This sounds cool and it's really something considerable!
> > Does this offer things like security as date will be able to be
> > created once and not get modified again? I hope I'm not asking for
> > too much...
> 
> You can see this if you run an object file disassembler over the
> compiler output, the immutable data goes in read-only sections.

It depends on OS support, obviously. But most commonly-used OSes ought
to support this.

Placing static string data in the read-only segment could be one line of
defense against exploits that, e.g., modify an embedded shell script to
do something pernicious instead.


T

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