wrongtest commented on a change in pull request #4459: [RUNTIME] Implement
TVMDSOOp(TensorFlow custom op) for TVM runtime
URL: https://github.com/apache/incubator-tvm/pull/4459#discussion_r367282927
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File path: src/contrib/tf_op/index_seq.h
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@@ -0,0 +1,44 @@
+/**
+ * Refer to std::index_sequence (since c++14)
+ * Utilities to invoke variadic function with template <size_t N>
+ */
+#ifndef __TFTVM_INDEX_SEQ__
+#define __TFTVM_INDEX_SEQ__
+
+template <std::size_t ...>
Review comment:
> Do we need these helpers? I think we can probably directly invoke using
PackedFunc, right?
PackedFunc is invoked variadic but DLPack input tensors is array. Thus
direct implementation maybe like:
```c++
switch(NUM_INPUTS) {
case 1 :
f(args[0]); break;
case 2:
f(args[0], args[1]); break;
case 3:
f(args[0], args[1], args[2]); break;
// update to 8 ...
}
```
This seems quite strange so we use some template utility to call the
PackedFunc.
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