Compiler error

hello
i've got problem think related scope issue. i'm blank , have tried lot of different stuff rid of compiler error. here code of simple state machine:

code: [select]

/* statemachine */

enum {ms_idle,ms_start,ms_stop};

typedef struct{
int state,oldstate;
int time;
}smtype;

void sm_update(smtype *p);

smtype mission;

void setup(){
 serial.begin(9600);
 mission.state=ms_idle;
}

void loop(){
 sm_update(&mission);
 switch(mission.state){
   case ms_idle:
   serial.print("state idle");
   delay(5000);
   mission.state=ms_start;
   break;
       
   case ms_start:
   serial.print("state start");
   delay(5000);
   mission.state=ms_stop;
   break;
   
   case ms_stop:
   serial.print("state stop");
   delay(5000);
   break;
   
 }      
}

void sm_update(smtype *p){
 if (p->state!=p->oldstate){
      p->time=0;
      p->oldstate=p->state;
  }
  else {
    p->time++;
  }
}

this results in compiler error:
statemachine:1: error: variable or field 'sm_update' declared void
statemachine:1: error: 'smtype' not declared in scope
statemachine:1: error: 'p' not declared in scope

the compiler complaining on void sm_update(smtype *p)
function.

hope can give me clue what's wrong in code.

cheers

i think you're right scope problem. if add scope resolution operator 2 function headers, code compiles fine:

code: [select]

void sm_update(::smtype *p)

i don't know enough arduino ide explain why, though. maybe free function gets wrapped in namespace?

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