/**
* Return non-zero if a given value can be converted lossless into another precision.
*/
-int fc_can_lossless_conv_to(const fp_value *value, char exp_size, char mant_size);
+int fc_can_lossless_conv_to(const fp_value *value, const ieee_descriptor_t *desc);
/** Set new rounding mode
* This function sets the rounding mode to one of the following, returning