How to initialize a local variable in plugin?

Say I want to have smething like this in c.

int myfunction (){
   int* temp;

   for(int i=0; i< 4; i++){
   temp[i] = i;
   }
}

I use 
self var: #temp type: 'int *temp'.  
for 
int* temp

1 to: 3 do:[:i|
   self m: temp r: i c:0 put: i].
for the loop.

Thanks.

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