- #include <stdio.h>  
-   
- enum direction { DOWN, RIGHT, UP, LEFT }; 
-   
- void funcaoExemplo(enum direction var) { 
-     if(- var  ==-  DOWN ) printf("%d",-  RIGHT ); //só para testar
 
- } 
-   
- int main(void){ 
-     funcaoExemplo(DOWN); 
-     return 0; 
- } 
-   
- //https://pt.stackoverflow.com/q/50363/101 
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