CODEWITHSUNDEEP
c
logitech mouse
logitech mouse

Reputation: 91

c program - error: variable set but not used

I keep getting the error error: variable 'addresspic' set but not used in the code below but I clearly use it.

Could somebody tell me if I am doing something wrong please?

I know that I should really be creating a pointer for addresspic instead of casting the return value of get_pic() but for now I can't understand why it is saying that the variable is not used.

//Function declaration
uint8_t* get_pic(int *piclen)

main() {

uint8_t addresspic;
unsigned int value;

addresspic = (uint8_t)get_pic((int*)& value);
}

Upvotes: 1

Views: 3194

Answers (1)

Mark Adelsberger
Mark Adelsberger

Reputation: 45659

I guess the message isn't the most clear, but what it's telling you is that nothing reads the value form addresspic; so you assign to it (value set) but nothing depends on the value you set it to (not used).

Upvotes: 1

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