[PATCH 01/10] ipa: libipa: Allow creation of empty Histogram

[Daniel Scally]

For convenience's sake allow the creation of empty Histograms so
they can be embedded within other Classes and filled out with
data at some later point in time.

Signed-off-by: Daniel Scally <dan.scally at ideasonboard.com>
---
 src/ipa/libipa/histogram.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ipa/libipa/histogram.h b/src/ipa/libipa/histogram.h
index 05bb4b80..db13c155 100644
--- a/src/ipa/libipa/histogram.h
+++ b/src/ipa/libipa/histogram.h
@@ -22,6 +22,7 @@ namespace ipa {
 class Histogram
 {
 public:
+	Histogram() { cumulative_.push_back(0); };
 	Histogram(Span<const uint32_t> data);
 	size_t bins() const { return cumulative_.size() - 1; }
 	uint64_t total() const { return cumulative_[cumulative_.size() - 1]; }
-- 
2.34.1