On Fri, Oct 14, 2011 at 2:51 PM, Prabhakar Lad <prabhakar.csengg@gmail.com> wrote:

Hi everyone,

I had question in want eradicate volatile from here:  for example:


   #define 0x01c40800


    if ((volatile void *)pllbase == (volatile void *)DAVINCI_PLL_CNTRL0_BASE) /*HERE*/
        return 8;
    else
        return pll_div(pllbase, PLLC_PREDIV);


Thanks.


Regards
--Prabhakar

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Hi,

volatile keyword is make use of to enforce compiler that not to optimize the code that contains this qualifier.

In this case maybe any of the two compared values could be changed in an unknowing way to the compiler which are to be considered and no optimization is required, hence volatile keyword is made use of.

Regards,
Rohan Puri