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-rw-r--r--unsupported/test/cxx11_tensor_fft.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/unsupported/test/cxx11_tensor_fft.cpp b/unsupported/test/cxx11_tensor_fft.cpp
index b2a4b5a96..89874349f 100644
--- a/unsupported/test/cxx11_tensor_fft.cpp
+++ b/unsupported/test/cxx11_tensor_fft.cpp
@@ -192,7 +192,7 @@ static void test_fft_real_input_energy() {
input.resize(arr);
input.setRandom();
- array<int, TensorRank> fft;
+ array<ptrdiff_t, TensorRank> fft;
for (int i = 0; i < TensorRank; ++i) {
fft[i] = i;
}