* Counterpart to Solidity's ` ` operator. * Returns the addition of two unsigned integers, reverting on * class of bugs, so it's recommended to use it always. * Using this library instead of the unchecked operations eliminates an entire * `SafeMath` restores this intuition by reverting the transaction when an * error, which is the standard behavior in high level programming languages. * in bugs, because programmers usually assume that an overflow raises an * Arithmetic operations in Solidity wrap on overflow. * Wrappers over Solidity's arithmetic operations with added overflow File: contracts\open-zeppelin-contracts\math\SafeMath.sol `value` is the new allowance.Įvent Approval(address indexed owner, address indexed spender, uint256 value) * Emitted when the allowance of a `spender` for an `owner` is set by * Emitted when `value` tokens are moved from one account (`from`) toĮvent Transfer(address indexed from, address indexed to, uint256 value) `amount` is then deducted from the caller'sįunction transferFrom(address sender, address recipient, uint256 amount) external returns (bool) * Moves `amount` tokens from `sender` to `recipient` using the * condition is to first reduce the spender's allowance to 0 and set theįunction approve(address spender, uint256 amount) external returns (bool) One possible solution to mitigate this race * that someone may use both the old and the new allowance by unfortunate * > Beware that changing an allowance with this method brings the risk * Sets `amount` as the allowance of `spender` over the caller's tokens. * This value changes when `approve` or `transferFrom` are called.įunction allowance(address owner, address spender) external view returns (uint256) * allowed to spend on behalf of `owner` through `transferFrom`. * Returns the remaining number of tokens that `spender` will be * Returns a boolean value indicating whether the operation succeeded.įunction transfer(address recipient, uint256 amount) external returns (bool) * Moves `amount` tokens from the caller's account to `recipient`. * Returns the amount of tokens owned by `account`.įunction balanceOf(address account) external view returns (uint256) * Returns the amount of tokens in existence.įunction totalSupply() external view returns (uint256) * the optional functions to access them see `ERC20Detailed`. * Interface of the ERC20 standard as defined in the EIP. File: contracts\open-zeppelin-contracts\token\ERC20\IERC20.sol *Submitted for verification at Etherscan.io on * - function burn(uint256 value) - function name() - function symbol() - function decimals() library SafeMath - function add(uint256 a, uint256 b) - function sub(uint256 a, uint256 b) - function mul(uint256 a, uint256 b) - function div(uint256 a, uint256 b) - function mod(uint256 a, uint256 b) contract ERC20 is IERC20 - function totalSupply() - function balanceOf(address account) - function transfer(address recipient. The Program, as well as the prices and the list of covered drugs, can be modified at any time without notice.Interface IERC20 - function totalSupply() - function balanceOf(address account) - function transfer(address recipient. The day supply is based upon the average dispensing patterns for the specific drug and strength. Discount percentages represent savings provided off of pharmacies’ retail prices for consumers who do not have a discount program and pay cash. *Average and up to savings percentages are based on all discounted prescriptions that were run through the WellRx program in 2020. This program is administered by Medical Security Card Company, LLC, Tucson, AZ. This scanner displays information in real time, color-coding each network and allowing you to view signal-to-noise ratios, break info out into. The first is Discovery mode which allows you to scan your local area to see and analyze any networks in your vicinity. You may contact customer care anytime with questions or concerns, to cancel your registration, or to obtain further information. NetSpot offers two modes for working with your Wi-Fi network. Cannot be used in conjunction with insurance. Members are required to pay for all prescription purchases. This program does not make payments directly to pharmacies. The range of the discounts will vary depending on the type of prescription and the pharmacy chosen. Discounts are available exclusively through participating pharmacies. The pricing estimates given are based on the most recent information available and may change based on when you actually fill your prescription at the pharmacy.ĭISCOUNT ONLY - NOT INSURANCE. Prescription prices may vary from pharmacy to pharmacy and are subject to change.
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