/*
there are some rules to know about pointer assingments and 'const'. it's valid to assign the address of either constant data or non-constant data to a pointer-to-constant:
*/

double rates[5] = {88.99, 100.12, 59.45, 183.11, 340.5};
const double locked[4] = {0.08, 0.075, 0.0725, 0.07};

const double *pc = rates;       //valid
pc = locked;                    //valid
pc = &rates[3];                 //valid

// why is the deref symbol '*' used at var declaration but not at subsequent assignments?
// ex const double *pc;
// ex *pc = locked;
// ex *pc = &rates[3];