Problem with printing instruction pointer

I'm trying to assign the value of EIP to a C variable but get this error message:

Code:

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bad register name `%eip'

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Here is the code:

Code:

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        void *ip = 0;
        asm("movl %%eip, %0" : "=r"(ip) );
        printf("Current instruction position: %p\n", ip);

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I have managed to get the stack pointer in a similar way without problem, like this:

Code:

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        void *p = 0;
        asm("movl %%esp, %0"
            : "=r"(p) );

        printf("Stack pointer: %p\n", p);

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Any idea what the problem might be?