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LayerXcom / verified-vyper-contracts

FVyper: A collection of useful Vyper contracts developed with formal methods
Apache License 2.0
55 stars 15 forks source link

[ERC721] Unnecessary zero address check at `_validateTransferFrom` #24

Closed nrryuya closed 5 years ago

nrryuya commented 5 years ago

https://github.com/LayerXcom/verified-vyper-contracts/blob/fca925befdc4c5c296c95e8df99db31426aeac48/erc721/ERC721.vy#L177