Algebra Integral
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  • ⬆️Changes v1.2.1
  • Algebra V1 / Technical Reference
    • 🔏Contracts
      • API Reference v1.0
        • V1.0 - Core
          • AlgebraFactory
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          • IAlgebraFactory
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        • V1.0 - Tokenomics
          • AlgebraEternalFarming
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          • Multicall
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      • API Reference v1.9
        • V1.9 - Core
          • AlgebraFactory
          • AlgebraPool
          • AlgebraPoolDeployer
          • DataStorage
          • DataStorageOperator
          • IAlgebraFactory
          • IAlgebraFlashCallback
          • IAlgebraMintCallback
          • IAlgebraPoolActions
          • IAlgebraPoolDeployer
          • IAlgebraPoolDerivedState
          • IAlgebraPoolEvents
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          • IAlgebraPoolState
          • IAlgebraSwapCallback
          • IAlgebraVirtualPool
          • IDataStorageOperator
          • IERC20Minimal
          • PoolImmutables
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        • V1.9 - Periphery
          • ERC721Permit
          • AlgebraInterfaceMulticall
          • IERC20Metadata
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          • IMulticall
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        • V1.9 - Tokenomics
          • AlgebraFarming
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      • API Reference v1.9 - Directional Fees
        • V1.9 (Directional Fees) - Core
          • AlgebraFactory
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          • DataStorage
          • DataStorageOperator
          • IAlgebraFactory
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        • V1.9 (Directional Fees) - Periphery
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        • V1.9 (Directional Fees) - Tokenomics
          • AlgebraFarming
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          • IERC20Minimal
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      • API Reference v2.0
        • V2.0 - Core
          • AlgebraCommunityVault
          • AlgebraFactory
          • AlgebraFeeConfiguration
          • AlgebraPool
          • AlgebraPoolBase
          • AlgebraPoolDeployer
          • DataStorage
          • DataStorageOperator
          • DerivedState
          • IAlgebraFactory
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        • V2.0 - Periphery
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          • V3Migrator
        • V2.0 - Tokenomics
          • AlgebraEternalFarming
          • EternalVirtualPool
          • FarmingCenter
          • IAccessControl
          • IAlgebraEternalFarming
          • IAlgebraEternalVirtualPool
          • IFarmingCenter
          • IncentiveKey
          • VirtualTickStructure
      • API Reference v2.0 - Directional Fees
        • V2.0 (Directional Fees) - Core
          • AlgebraCommunityVault
          • AlgebraFactory
          • AlgebraFeeConfiguration
          • AlgebraPool
          • AlgebraPoolBase
          • AlgebraPoolDeployer
          • DataStorage
          • DataStorageOperator
          • DerivedState
          • IAlgebraFactory
          • IAlgebraFlashCallback
          • IAlgebraMintCallback
          • IAlgebraPoolActions
          • IAlgebraPoolDeployer
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          • IAlgebraVirtualPool
          • IDataStorageOperator
          • IERC20Minimal
          • Positions
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        • V2.0 (Directional Fees) - Periphery
          • AlgebraInterfaceMulticall
          • ERC721Permit
          • IERC20Metadata
          • IERC20PermitAllowed
          • IERC721Permit
          • IERC1271
          • ILimitOrderManager
          • IMulticall
          • INonfungiblePositionManager
          • INonfungibleTokenPositionDescriptor
          • IPeripheryImmutableState
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          • IPoolInitializer
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          • IQuoter
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          • ITickLens
          • IV3Migrator
          • IWNativeToken
          • LimitOrderManagement
          • LimitOrderManager
          • LiquidityManagement
          • Multicall
          • NFTDescriptor
          • NonfungiblePositionManager
          • NonfungibleTokenPositionDescriptor
          • PeripheryImmutableState
          • PeripheryPayments
          • PeripheryPaymentsWithFee
          • PoolInitializer
          • QuoterV2
          • Quoter
          • SelfPermit
          • SwapRouter
          • TickLens
          • V3Migrator
        • V2.0 (Directional Fees) - Tokenomics
          • AlgebraEternalFarming
          • EternalVirtualPool
          • FarmingCenter
          • IAccessControl
          • IAlgebraEternalFarming
          • IAlgebraEternalVirtualPool
          • IFarmingCenter
          • IncentiveKey
          • VirtualTickStructure
      • Adaptive Fee
        • Adaptive Fee
        • How to set up specific formula behaviour
        • How to tweak formula behaviour
      • Contracts Setup
        • Deployment
          • Contracts Deployment
          • Deployment Scripts
        • Misc
          • POOL_INIT_CODE_HASH
          • Code Audits
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      • The Algebra Guides
        • Flash Integrations
          • The Full Contract
          • Calling Flash
          • Flash Callback
          • Inheritance constructor
        • Liquidity Mining
          • Liquidity Mining Overview
        • Providing Liquidity
          • Collecting fees
          • Decrease liquidity
          • Increase Liquidity Within The Current Range
          • Mint a new position
          • Set up your contract
          • The full contract
        • Swaps
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    • 📊Subgraph
      • Query Examples
        • Query Examples
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        • Algebra GraphQL Schema
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    • 🖥️Frontend
      • Admin Panel
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          • Admin Panel
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          • Create Eternal Farming
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        • Limit Farmings
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On this page
  • Functions
  • constructor
  • name
  • symbol
  • decimals
  • totalSupply
  • balanceOf
  • transfer
  • allowance
  • approve
  • transferFrom
  • increaseAllowance
  • decreaseAllowance
  1. Algebra V1 / Technical Reference
  2. Contracts
  3. API Reference v1.9
  4. V1.9 - Tokenomics

ERC20

Functions

constructor

constructor(string name_, string symbol_) public public

*Developer note: Sets the values for {name} and {symbol}, initializes {decimals} with a default value of 18.

To select a different value for {decimals}, use {_setupDecimals}.

All three of these values are immutable: they can only be set once during construction.*

Name
Type
Description

name_

string

symbol_

string

name

function name() public view virtual returns (string) view public

Developer note: Returns the name of the token.

Returns:

Name
Type
Description

[0]

string

symbol

function symbol() public view virtual returns (string) view public

Developer note: Returns the symbol of the token, usually a shorter version of the name.

Returns:

Name
Type
Description

[0]

string

decimals

function decimals() public view virtual returns (uint8) view public

*Developer note: Returns the number of decimals used to get its user representation. For example, if `decimals` equals `2`, a balance of `505` tokens should be displayed to a user as `5,05` (`505 / 10 ** 2`).

Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is called.

NOTE: This information is only used for display purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}.*

Returns:

Name
Type
Description

[0]

uint8

totalSupply

function totalSupply() public view virtual returns (uint256) view public

Developer note: See {IERC20-totalSupply}.

Returns:

Name
Type
Description

[0]

uint256

balanceOf

function balanceOf(address account) public view virtual returns (uint256) view public

Developer note: See {IERC20-balanceOf}.

Name
Type
Description

account

address

Returns:

Name
Type
Description

[0]

uint256

transfer

function transfer(address recipient, uint256 amount) public virtual returns (bool) public

*Developer note: See {IERC20-transfer}.

Requirements:

  • `recipient` cannot be the zero address.

  • the caller must have a balance of at least `amount`.*

Name
Type
Description

recipient

address

amount

uint256

Returns:

Name
Type
Description

[0]

bool

allowance

function allowance(address owner, address spender) public view virtual returns (uint256) view public

Developer note: See {IERC20-allowance}.

Name
Type
Description

owner

address

spender

address

Returns:

Name
Type
Description

[0]

uint256

approve

function approve(address spender, uint256 amount) public virtual returns (bool) public

*Developer note: See {IERC20-approve}.

Requirements:

  • `spender` cannot be the zero address.*

Name
Type
Description

spender

address

amount

uint256

Returns:

Name
Type
Description

[0]

bool

transferFrom

function transferFrom(address sender, address recipient, uint256 amount) public virtual returns (bool) public

*Developer note: See {IERC20-transferFrom}.

Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}.

Requirements:

  • `sender` and `recipient` cannot be the zero address.

  • `sender` must have a balance of at least `amount`.

  • the caller must have allowance for ``sender``'s tokens of at least `amount`.*

Name
Type
Description

sender

address

recipient

address

amount

uint256

Returns:

Name
Type
Description

[0]

bool

increaseAllowance

function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) public

*Developer note: Atomically increases the allowance granted to `spender` by the caller.

This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.

Emits an {Approval} event indicating the updated allowance.

Requirements:

  • `spender` cannot be the zero address.*

Name
Type
Description

spender

address

addedValue

uint256

Returns:

Name
Type
Description

[0]

bool

decreaseAllowance

function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) public

*Developer note: Atomically decreases the allowance granted to `spender` by the caller.

This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.

Emits an {Approval} event indicating the updated allowance.

Requirements:

  • `spender` cannot be the zero address.

  • `spender` must have allowance for the caller of at least `subtractedValue`.*

Name
Type
Description

spender

address

subtractedValue

uint256

Returns:

Name
Type
Description

[0]

bool

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