1 files changed, 38 insertions, 0 deletions
diff --git a/runtimes/libs/misc/src/tensor/Comparator.cpp b/runtimes/libs/misc/src/tensor/Comparator.cpp
new file mode 100644
index 000000000..e765e77b2
--- /dev/null
+++ b/runtimes/libs/misc/src/tensor/Comparator.cpp
@@ -0,0 +1,38 @@
+#include "misc/tensor/Comparator.h"
+#include "misc/tensor/Zipper.h"
+
+#include "misc/fp32.h"
+
+namespace nnfw
+{
+namespace misc
+{
+namespace tensor
+{
+
+std::vector<Diff<float>> Comparator::compare(const Shape &shape, const Reader<float> &expected,
+                                             const Reader<float> &obtained,
+                                             Observer *observer) const
+{
+  std::vector<Diff<float>> res;
+
+  zip(shape, expected, obtained) <<
+      [&](const Index &index, float expected_value, float obtained_value) {
+        if (!_compare_fn(expected_value, obtained_value))
+        {
+          res.emplace_back(index, expected_value, obtained_value);
+        }
+
+        // Update max_diff_index, if necessary
+        if (observer != nullptr)
+        {
+          observer->notify(index, expected_value, obtained_value);
+        }
+      };
+
+  return res;
+}
+
+} // namespace tensor
+} // namespace misc
+} // namespace nnfw