storage location for a string initialized to char pointer

[krkr]

When we store a string using char pointer, then where memory will be allocated for string.


If we initialize a char pointer as shown below within a function.

char *cp = "ABC";

then memory for cp will be allocated in stack as it is local, but where memory will be allocated for "ABC" string.

[Salem]

> then memory for cp will be allocated in stack as it is local, but where memory will be allocated for "ABC" string.
String constants are stored in some kind of initialised memory that is set up when the program is loaded.

In Linux/gcc for example, string constants end up in a section of memory called ".rodata" (read-only data).

[krkr]

Thanks for the info.

[krkr]

In the following program where memory will be allocated for the string "ABC".

int lenstr(char *s)
{
    int len;
    while(*s)
        len++;


    return len;
}

int main()
{
    int i;
    i=lenstr("ABC");
    return 0;
}

[Salem]

Same answer as before.