Converts name-value-record to string names and string values.
hcerr_t hc_nvr_convert_to_string_arrays(hc_nvr_t *nvr, char ***namesp, char ***valuesp, int *nitemsp);
This function converts a name-value-record into parallel tables of string names and string values. This destructively modifies the name-value record and frees it, so do not call hc_nvr_free after calling this function.
When the conversion is finished, each string in the names and values tables should be freed with the designated deallocator (for example, free), as well as the names and values tables themselves.
Any time there is a conversion from a double type to or from a string type, there might be a loss of precision.
IN: The name-value-record.
OUT: Updated to point to an array of string names.
OUT: Updated to point to an array of string values.
OUT: Updated to the number of active elements in the paired arrays.
HCERR_OK HCERR_BAD_REQUEST HCERR_OOM HCERR_INVALID_NVR HCERR_ILLEGAL_ARGUMENT