8-bit MicrocontrollersのトピックDEMO9S08SH32 Pointers

DEMO9S08SH32 Pointers

Coyote — Wed, 17 Feb 2010 19:47:11 GMT

Hello,
I am new to this forum, I bought a DEMO9S08SH32 to various tests.
I have a problem with pointers in language C, for example:

int *p1;

(void) main(void)
{

----

*p1= 0;

----
}

The result to CodeWarrior is: *p1= 0x2e00 ?
I think normaly is: *p1= 0x0000 !

Thany you for your answer.

tonyp — Wed, 17 Feb 2010 19:59:51 GMT

p1 is a(n uninitialized) pointer to an integer, not the variable that actually holds the value.

Coyote — Wed, 17 Feb 2010 21:34:26 GMT

Thank you for your answer, if I understand "int *P1" is only a variable that contains the adress of variables!