Pass arguments though lookup table

Code:

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    enum states { STATE_1, STATE_2, STATE_3 MAX_STATES } current_state;
    enum events { EVENT_1, MAX_EVENTS } new_event;
   

    void action_s1_e1 (struct call_info_s *p);
    void action_s2_e1 (struct call_info_s *p);
    void action_s3_e1 (struct call_info_s *p);

    void (*const state_table [MAX_STATES][MAX_EVENTS]) (void) = {
    { action_s1_e1},
    { action_s2_e1},
    { action_s3_e1},
    };

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Code:

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new_event = get_new_event();

    if (((new_event >= 0) && (new_event < MAX_EVENTS))
    && ((current_state >= 0) && (current_state < MAX_STATES))) {
   
        state_table [current_state][new_event]();

    } else {

    }

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------------------------------------------------------------------------

Code:

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void action_s1_e1 (struct call_info_s *call_info)
{
    dosomething(call_info);


}

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I am trying to get this state machine code that i found on the net to work. At this step I am trying to figure out how to pass argument through the lookup table.

Code:

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void (*const state_table [MAX_STATES][MAX_EVENTS]) (void) = {
    { action_s1_e1},

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In the example action prototypes defines argumenttype for action_s1_e1(). stable_table prototype defines the functions to be called. What do I need to do to include passing arguments. For example dosomething function receiving struct pointer

Quote:

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Originally Posted by robi

Code:

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void (*const state_table [MAX_STATES][MAX_EVENTS]) (void) = {
    { action_s1_e1},

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If you need a parameter in your action functions, you must declare this also in your 2dim function-pointer like

Code:

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void (*const state_table [MAX_STATES][MAX_EVENTS]) (struct call_info_s *) = {
    { action_s1_e1},

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