const double dval = 3.14;
const double * cptr = &dval;
double *const cptr2 = &dval;
const double *const cptr3 = &dval;
const double dval = 3.14;
const double * cptr = &dval;
double *const cptr2 = &dval;
const double *const cptr3 = &dval;
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