Count

Function Syntax

int count(aggregate map )

Returns the number of keys in the specified aggregate.

Code Samples

This example function uses count to create a new key in a map (defined outside the function to hopefully eliminate some confusion).

item [int] my_map;
boolean newkey(item i) {
   map[count(map}] = i;
}

See Also

clear() | file_to_map() | map_to_file()

Special

This function returns 0 for an empty map (i.e. with 0 keys).