isomon::data::num_minor_digits — Low-level C function returning minor units per major unit.
// In header: </home/castedo/src/isomon/currency_data.h> int8_t num_minor_digits(isonum_t isonum);
Number of decimal digits for minors units for given ISO currency numeric code.
Parameters:
isonum
ISO numeric code: is_isonum(isonum) is true
Returns:
Number of decimal digits needed for minor units 0 is returned if "currency" does not have minor units (XAU, XXX, ...)