Function discid_sys::discid_get_error_msg

pub unsafe extern "C" fn discid_get_error_msg(d: *mut DiscId) -> *mut c_char

Return a human-readable error message.

This function may only be used if discid_read() failed. The returned error message is only valid as long as the DiscId object exists.

@param d a DiscId object created by discid_new() @return a string describing the error that occurred