First implementation

vendor/github.com/mattn/go-tflite/callback.go

@@ -0,0 +1,19 @@
+package tflite
+
+import "C"
+import (
+	"unsafe"
+
+	"github.com/mattn/go-pointer"
+)
+
+type callbackInfo struct {
+	user_data interface{}
+	f         func(msg string, user_data interface{})
+}
+
+//export _go_error_reporter
+func _go_error_reporter(user_data unsafe.Pointer, msg *C.char) {
+	cb := pointer.Restore(user_data).(*callbackInfo)
+	cb.f(C.GoString(msg), cb.user_data)
+}