C - discard pointer parameter -

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i'm not sure how phrase question i'll give example of i'm looking do.

i have function gets next byte fifo.

void fifoget(uint8_t * byte) {    *byte = somefunction(); }

i'm making function flush fifo

void fifoflush(void) {     uint8_t i;     uint8_t discardbyte;      (i=0; i<fifolength; i++) {         fifoget(&discardbyte);     }  }

what i'm wondering, since don't need discardbyte, can around allocating memory , pass void pointer fifoget()?

something like

void fifoflush(void) {     uint8_t i;      (i=0; i<fifolength; i++) {         fifoget(&void);     }  }

no, void approach cause behaviour of program undefined you'll dereferencing pointer unknown memory.

your using discardbyte best thing do.


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