Function currency_exists
Source #[no_mangle]
pub unsafe extern "C" fn currency_exists(
code_ptr: *const c_char,
) -> u8
Expand description
Checks whether a currency code exists in the global map for FFI.
§Panics
Panics if the internal mutex CURRENCY_MAP is poisoned when locking.
§Safety
Assumes code_ptr is a valid NUL-terminated UTF-8 C string pointer.