PYRToken
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Write Functions / decreaseAllowance
Overview

The decreaseAllowance function in the ERC20 contract allows a token holder to reduce the allowance granted to a specified spender. It ensures that the new allowance does not fall below zero and emits an Approval event to reflect the updated allowance.

Inputs
  • spender (address): The address of the spender whose allowance is being decreased.
  • subtractedValue (uint256): The amount by which the allowance is to be decreased.
Outputs
  • Returns (bool): The function returns true if the allowance was successfully decreased.
Emits One Event
Functions will often emit events during execution, often signifying key changes in state.

Approval: Emits the event to indicate that the allowance for the specified spender has been reduced, reflecting the new limit.
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