IB20.approve

Signature

function approve(address spender, uint256 amount) external returns (bool);

Field	Value
Selector	`0x095ea7b3`
Canonical signature	`approve(address,uint256)`

Description

Sets spender’s allowance to amount. Not gated by any policy or by pause. Emits Approval. Dev: Reverts with InvalidApprover when msg.sender == address(0). Dev: Reverts with InvalidSpender when spender == address(0). Param: spender Account being granted the allowance. Param: amount Allowance amount. Return: Always true on success.

Access control

Read-only or ERC-20-standard access rules unless the NatSpec states otherwise.

Policy interaction

No direct policy interaction.

Example

IB20(target).approve(arg0, arg1);

IB20 reference
Constants & addresses

Beryl Upgrade

Introduction

Core Concepts

Node Operators

Network Reference

API Reference

Protocol Specifications

Security

Signature

Description

Access control

Policy interaction

Example

​Signature

​Description

​Access control

​Policy interaction

​Example

​Related

Signature

Description

Access control

Policy interaction

Example

Related