GetDataPtr

AscendC::ListTensorDesc listTensorDesc(reinterpret_cast<__gm__ void *>(srcGm)); // srcGm indicates the GM address to be parsed.
uint32_t size = listTensorDesc.GetSize();                                       // size = 2
auto dataPtr0 = listTensorDesc.GetDataPtr<int32_t>(0);                          // Obtains ptr0.
auto dataPtr1 = listTensorDesc.GetDataPtr<int32_t>(1);                          // Obtains ptr1.

uint64_t buf[100] = {0}; // In the example, dim of the tensor is 3, and the value 100 indicates that sufficient space is reserved.
AscendC::TensorDesc<int32_t> desc;
desc.SetShapeAddr(buf);          // Specifies the address for storing shape information for desc.
listTensorDesc.GetDesc(desc, 0); // Obtains the shape information of index 0.

uint64_t dim = desc.GetDim();   // dim = 3
uint64_t idx = desc.GetIndex(); // idx = 0
uint64_t shape[3] = {0};
for (uint32_t i = 0; i < desc.GetDim(); i++)
{
    shape[i] = desc.GetShape(i); // GetShape(0) = 1, GetShape(1) = 2, GetShape(2) = 3
}
auto ptr = desc.GetDataPtr();