jvkr

To my understanding, this code shows that a Data object inside a function has a global scope. The values x and y will be identical, also when it is called for a second time within the same loop. This is in contrast with the History object, that appears to have local scope. How should I understand this difference?

writedata (dowrite) {
    Data localbuf(2, 1);
    if (dowrite) {
        v = int(100*abs(noise()));
        poke(localbuf, v, 0);
        poke(localbuf, v, 1);
    }
    r1 = peek(localbuf, 0);
    r2 = peek(localbuf, 1);
    return r1, r2;
}

x, y = writedata(refresh);
if (second) {
    v, w = writedata(refresh);
    y = w;
}

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attrui

To my understanding, this code shows that a Data object inside a function has a global scope. The values x and y will be identical, also when it is called for a second time within the same loop. This is in contrast with the History object,  that appears to have local scope. How should I understand this difference?

writedata (dowrite) {
	Data localbuf(2, 1);
	if (dowrite) {
		v = int(100*abs(noise()));
		poke(localbuf, v, 0);
		poke(localbuf, v, 1);
	}
	r1 = peek(localbuf, 0);
	r2 = peek(localbuf, 1);
	return r1, r2;
}

x, y = writedata(refresh);
if (second) {
	v, w = writedata(refresh);
	y = w;
}

To my understanding, this code shows that a Data object inside a function has a global scope. The values x and y will be identical, also whe

local/global scope data vs history