pool_value_get_double
(void) pool_value_get_double(pv, &dval);
pool_value_get_double((pool_value_t *)(uintptr_t)pointer, &arg2);
(void) pool_value_get_double(pval, &d);
extern int pool_value_get_double(const pool_value_t *, double *);
if (pool_value_get_double(pv, &dval) == POC_INVAL) {
(void) pool_value_get_double(pv1, &dval1);
(void) pool_value_get_double(pv2, &dval2);
(void) pool_value_get_double(props[i], &dval);
(void) pool_value_get_double(value, &dres);
(void) pool_value_get_double(value, &dres);