Function samplesInRange

tests/fl/audio/synth.hpp:12–19

Helper to check if samples are within valid range [-1.0, 1.0] with some tolerance

// Helper to check if samples are within valid range [-1.0, 1.0] with some tolerance
static bool samplesInRange(const float* samples, int32_t count, float tolerance = 1.5f) {
    for (int32_t i = 0; i < count; ++i) {
        if (samples[i] < -tolerance || samples[i] > tolerance) {
            return false;
        }
    }
    return true;
}

// Helper to check if waveform has significant variation (not all zeros or constant)
static bool hasVariation(const float* samples, int32_t count) {