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Further small improvement to moving median

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This commit is contained in:
Chris Cannam
2022-06-07 08:53:42 +01:00
parent d7163b36f6
commit b8c7289c45
1 changed files with 8 additions and 1 deletions
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9
src/common/MovingMedian.h
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@@ -110,7 +110,14 @@ private:
// postcondition: m_sorted contains m_size values, one of which is toPut // postcondition: m_sorted contains m_size values, one of which is toPut
// (and one instance of toDrop has been removed) // (and one instance of toDrop has been removed)
int n = P::m_size; int n = P::m_size;
int dropIx = std::lower_bound(m_sorted, m_sorted + n, toDrop) - m_sorted; int dropIx;
if (toDrop <= m_sorted[0]) {
// this is quite a common short-circuit in situations
// where many values can be (the equivalent of) 0
dropIx = 0;
} else {
dropIx = std::lower_bound(m_sorted, m_sorted + n, toDrop) - m_sorted;
}
#ifdef DEBUG_MM #ifdef DEBUG_MM
std::cout << "\nbefore: ["; std::cout << "\nbefore: [";