Buffer.indexOfPeak is wrong

[ustk]

@Christoph-Hart It seems that Buffer.indexOfPeak() always throw the last sample

it uses the same search I've made by script but they don't throw the same index (far from this in fact)
except that in my case I don't need an abs value (but this is not the issue since the value at indexOfPeak is close to 0 anyway so it shouldn't be this one)

for (i = 1; i < buffer.length; i++)
    {
        if (buffer[i] > max)
        {
            index = i;
            max = buffer[i];
        }
    }

[ustk]

Hasn't been resolved

const var buffer = Buffer.create(64);

buffer[31] = 0.6;
buffer[42] = 0.1;

Console.print(buffer.indexOfPeak()); // 42 instead of 31

[Christoph Hart]

@ustk Yeah, that was a silly one. Can you spot the mistake?

int index = 0;
int maxValue = 0.0f;

for (int i = 0; i < numSamples; i++)
{
	auto thisValue = std::abs(ptr[i]);
    
	if (thisValue > maxValue)
	{
		maxValue = thisValue;
		index = i;
	}
}

I needed to debug it because I couldn't solve it just from staring at the code

[ustk]

@christoph-hart Hmm... Maybe dereference the read pointer?

std::abs(*ptr[i]);

[Christoph Hart]

@ustk Nope. A hint: number types

[Christoph Hart]

PS: The solution is in the commit

[ustk]

@christoph-hart Oh of course... int

[ustk]

@christoph-hart Too evident to jump at the eyes