From: Ullrich von Bassewitz (uz_at_musoftware.de)
Date: 2003-09-03 10:44:57
On Wed, Sep 03, 2003 at 08:33:40AM +0200, Groepaz wrote:
> mmmh...could you explain how exactly cc65 deals with the const keyword then?
> does it do anything else than placing const data in .rodata?
>
> also, maybe the compiler could throw a warning if an assignment is made to a
> constant lvalue (which doesnt quite make sence :=)) ?
gcc warns on assignment to const, while cc65 does even output an error, so I
do still wonder, about which cases you're thinking:
-----------------------------------------------------------------------------
uz_at_trixie:~/src/cc65/test$ cat test.c
int main (void)
{
const char* a = "Hello world!\n";
*a = 'F';
}
uz_at_trixie:~/src/cc65/test$ make
../src/cc65/cc65 -g -T -Oirs --codesize 400 --create-dep -t c64 -I../include/
test.c
test.c(4): Error: Assignment to const
make: *** [test.o] Error 1
uz_at_trixie:~/src/cc65/test$ gcc -Wall -o test -O2 test.c
test.c: In function `main':
test.c:4: warning: assignment of read-only location
test.c:5: warning: control reaches end of non-void function
uz_at_trixie:~/src/cc65/test$
-----------------------------------------------------------------------------
Regards
Uz
--
Ullrich von Bassewitz uz_at_musoftware.de
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