feat(example/tensor): a working example of wraping Ctype tensor (torch.Tensor()) to Go C_tensor type

example/tensor/main.go

@@ -1,10 +1,15 @@
 package main
 
 import (
+	"fmt"
+	"reflect"
+
 	t "github.com/sugarme/gotch/torch"
 )
 
 func main() {
 
-	t.NewTensor()
+	t := t.NewTensor()
+
+	fmt.Printf("Type of t: %v\n", reflect.TypeOf(t))
 }

torch/tensor.go

@@ -5,16 +5,16 @@ package torch
 import "C"
 
 import (
-	"fmt"
-	"reflect"
+	// "fmt"
+	// "reflect"
+	"unsafe"
 )
 
 type C_tensor struct {
-	_private []uint8
+	_private uint8
 }
 
-func NewTensor() {
-	t := C.at_new_tensor()
-	fmt.Printf("Tensor Type: %v\n", reflect.TypeOf(t).Kind())
-	fmt.Printf("Tensor Value: %v\n", t)
+func NewTensor() *C_tensor {
+	ct := C.at_new_tensor()
+	return &C_tensor{_private: *(*uint8)(unsafe.Pointer(&ct))}
 }