Re: Are string literals _always_ allocated in the RO section?

[Jan-Benedict Glaw <jbglaw@lug-owl.de>]

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On Sun, 2005-01-16 00:18:20 +0100, Gabriel Dos Reis <gdr@integrable-solutions.net>
wrote in message <m3brbq1dtv.fsf@uniton.integrable-solutions.net>:
> Denis Zaitsev <zzz@anda.ru> writes:
> 
> | This program:
> | 
> | void x(char *s)
> | {
> |     *s= 'x';
> | }
> | 
> | main()
> | {
> |     x("y");
> | }

> | not <const char*> does nothing in this case.  Should it be considered
> | as a bug?
> 
> In the program? Yes.

Maybe you'd tell him more about the magic :)

char *mytext = "hello";

results in a pointer (which you may later on make pointing to a
different location) that points to a static, read-only string containing
"hello\0". However, if you need to change the text, you need to do it
like this:

char mytext[] = "hello";

Cf. section 6.4.5.6 of the C99 standard.

MfG, JBG

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