This means that arm64 architecture int64_tis in range -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807, but int- -2,147,483,648 to 2,147,483,647. therefore, the compiler says "Loss of value."
See the following: Converting YourAppto-64Bit
if you do not want more warnings. you can change the architecture in Xcode 5.1![enter image description here]! [enter image description here](https://fooobar.com//img/9a278359b6d065e5b394b2180f0dd267.png)

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