pytorch/test/cpp/api/torch_include.cpp

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#include <gtest/gtest.h>
#include <torch/torch.h>
// NOTE: This test suite exists to make sure that common `torch::` functions
// can be used without additional includes beyond `torch/torch.h`.
TEST(TorchIncludeTest, GetSetNumThreads) {
torch::init_num_threads();
torch::set_num_threads(2);
ASSERT_EQ(torch::get_num_threads(), 2);
torch::set_num_interop_threads(2);
ASSERT_EQ(torch::get_num_interop_threads(), 2);
}