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Solidity

Solidity : ERC-20 transfer should throw

Overview

Functions of ERC-20 Token Standard should throw in special cases:

  • transfer should throw if the _from account balance does not have enough tokens to spend
  • transferFrom should throw unless the _from account has deliberately authorized the sender of the message via some mechanism

References

  1. ERC20 API: Transfer and TransferFrom
LOW

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See also

Solidity

Solidity : Return value of transfer, transferFrom, or approve function of ERC-20 standard is always false.

Solidity

Solidity : Using approve function of the ERC-20 token standard

Solidity

Solidity : Prefer external to public visibility level