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void f2() {


	const size_t ARR_SIZE = 4;
	float a[ARR_SIZE];
	const size_t n= sizeof(float) * ARR_SIZE;
	void *p = a;

	memset(p, 0, n);
	/* More program code */

}

void f3(float *a, size_t val) {

	float b = 3.14;
	const size_t n = val;
	void *p = a;
	void *q = &b;


	if( (n > sizeof(a)) || (n > sizeof(b)) ) {
		/* Handle error */
	}
	else {
		memcpy(p, q, n);
		/* More program code */
	}

}