Naming shift register pin.

Projects Programming
4

EDIT: Restated

I'd suggest using more descriptive names, and not knowing your application domain, those in my example are rather lame -

const uint8_t   pinSHIFTREGISTER_ROW_1  = 1;
const uint8_t   SR_ROW_OFF              = LOW;
const uint8_t   SR_ROW_ON               = HIGH;


digitalWrite(pinSHIFTREGISTER_ROW_1, SR_ROW_ON);