TFLite: Accommodate change in std::span size type

The WIP version of std::span in external/libcxx uses a ptrdiff_t size,
but the finalized C++20 std::span uses a size_t size instead. Comparing
the size_t size() against a signed integer causes a
-Werror,-Wsign-compare build error. Cast the size() expression so that
the code compiles with both the old and the new libc++.

Bug: 175635923
Test: m MODULES-IN-frameworks-native
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:a119a69b066f7bb03d51665a35bef17cecacbe95)
Merged-In: I50cc5354b6205b62918157b69df6cf1aa7bad6cc
Change-Id: I50cc5354b6205b62918157b69df6cf1aa7bad6cc

1 files changed, 10 insertions, 10 deletions

diff --git a/libs/input/tests/TfLiteMotionPredictor_test.cpp b/libs/input/tests/TfLiteMotionPredictor_test.cpp
index b5ed9e4430..c3ac0b7cfb 100644
--- a/libs/input/tests/TfLiteMotionPredictor_test.cpp
+++ b/libs/input/tests/TfLiteMotionPredictor_test.cpp
@@ -130,19 +130,19 @@ TEST(TfLiteMotionPredictorTest, ModelInputOutputLength) {
     std::unique_ptr<TfLiteMotionPredictorModel> model = TfLiteMotionPredictorModel::create();
     ASSERT_GT(model->inputLength(), 0u);
 
-    const int inputLength = model->inputLength();
-    ASSERT_EQ(inputLength, model->inputR().size());
-    ASSERT_EQ(inputLength, model->inputPhi().size());
-    ASSERT_EQ(inputLength, model->inputPressure().size());
-    ASSERT_EQ(inputLength, model->inputOrientation().size());
-    ASSERT_EQ(inputLength, model->inputTilt().size());
+    const size_t inputLength = model->inputLength();
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputR().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputPhi().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputPressure().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputOrientation().size()));
+    ASSERT_EQ(inputLength, static_cast<size_t>(model->inputTilt().size()));
 
     ASSERT_TRUE(model->invoke());
 
-    const int outputLength = model->outputLength();
-    ASSERT_EQ(outputLength, model->outputR().size());
-    ASSERT_EQ(outputLength, model->outputPhi().size());
-    ASSERT_EQ(outputLength, model->outputPressure().size());
+    const size_t outputLength = model->outputLength();
+    ASSERT_EQ(outputLength, static_cast<size_t>(model->outputR().size()));
+    ASSERT_EQ(outputLength, static_cast<size_t>(model->outputPhi().size()));
+    ASSERT_EQ(outputLength, static_cast<size_t>(model->outputPressure().size()));
 }
 
 TEST(TfLiteMotionPredictorTest, ModelOutput) {