5.10. Methods that Change the Instance Reference

Sometimes methods return a new pointer to the instance (think realloc). Declare the function in the VAPI returns void and add the attribute ReturnsModifiedPointer.

typedef struct table Table;
Table *table_grow(Table *t, size_t object_count);

[Compact]
[CCode (cname = "Table")]
public class Table {
    [ReturnsModifiedPointer]
    public void grow (size_t object_count);
}