How to define REALLOC in OPLIST?

[lindsaywhitney]

How to define REALLOC in OPLIST? There is error in following code:

static data_node data_node_realloc(data_node obj, size_t size);

ARRAY_DEF(/ the array prefix / array_data_node, / the object type / data_node, / the object oplist / (INIT(API_2(data_node_init)), SET(API_6(data_node_set)), REALLOC(API(data_node_realloc,ARGPTR1,ARGPTR2,ARG3)), INIT_SET(API_6(data_node_init_set)), CLEAR(API_2(data_node_clear))))

[P-p-H-d]

Hi,

You need to define it like this:

ARRAY_DEF(/* the array prefix */ array_data_node,
      /* the object type */ data_node,
      /* the object oplist */ (INIT(API_2(data_node_init)),
                   SET(API_6(data_node_set)),
                   REALLOC(API(data_node_realloc,NONE, ARG2, ARG3)),
                   INIT_SET(API_6(data_node_init_set)),
                   CLEAR(API_2(data_node_clear))))

More information:

• ARG1 is the type itself, which is useless for your already strongly type function.
• It already expects the argument to be pointer to object, so no need to add an additional pointer.
• Since the prototype of the operator expects a pointer as return value, there is no transformation to perform to match your prototype.

Additional notes on this code which may be bugs:

• there is no INIT_SET operator (copy constructor), which is likely to be problematic for your object
• you over-define the REALLOC operator but not the FREE operator, which means standard C "free" function will be used. I am not sure it is want you want.