difference between: const char *, char *

Can anyone tell me the difference (if any) of the following (memory wise) of using const * vs char *:

Code:

---

#include <conio.h>
#include <stdio.h>

#define GET_NUM_ELEMENTS(x) (sizeof(x) / sizeof(x[0]))

int main(void)
{
    const char *cStr = "Stuff";
    char *str = "Stuff";

    const char *cStrArray[] = { "Um", "Some", "Words" };
    char *strArray[] = { "Um", "Some", "Words" };

    for(register unsigned int i = 0; i < GET_NUM_ELEMENTS(StrArray); i++)
        printf("%s ", strArray[i]);

    getch();

    return 0;
}

---

Thanks.

const char * make the char pointed at contant, but char * makes it constant.

Hi,
I think memory wise no difference. Only this difference:
char *p="name";
p="newname";//possible
*p='q';//possible
But,
const char *p="name";
p="newname";//possible
*p='q';//not possible.

Thanks for the fast reply.
Not sure what chrismiceli is getting at though.

saravanan_ts: im assuming the memory is automatically resized when:

Code:

---

p="newname"; //possible
*p='q';            //possible

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and there is no need for a malloc(), free() call??

also re you sure this is possible:

Code:

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const char *p="name";
p = "newname"; //possible

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just thinking the compiler aint going to like changing a const