c - How to assign a specific [x] value to port pin? -

how can assign dynamic value pin specific pin on avr chip. instance have:

void life_reset(void){     portc |= (1<<pc0);     portc |= (1<<pc1);     portc |= (1<<pc2);     life_number = 2; } void lost_life(void){             life_number--;             portc &= ~(1<<pc2); } 

which decrements life_number variable , bitwise and's left shift of pc2.

in case, each pc[x] value connected led. how can write portc &= statement pc[x] value of life_number.

pseudocode -what want do

void lost_life(void){             life_number--;             portc &= ~(1<<pc[*life_number*]); } 

just use life number, because pcn macros in fact same numbers show in name.

portc &= ~(1<<life_number);