Thread 90: Swift runtime failure: arithmetic overflow

[ramesh-aureus]

Description

While performing any kind of transaction , the ios screen freezes and the xcode takes me to Timestamp file , to this code:

internal func subtracting(nanos: UInt64) -> Self {
    Self(fromUnixTimestampNanos: unixTimestampNanos - nanos)
}

and shows error as :
Thread 90: Swift runtime failure: arithmetic overflow

my implementation code (creating Hedera wallet):

let transactionResponse = try await AccountCreateTransaction()
.key(.single(newPublicKey)) // Set the public key for the account
.initialBalance(Hbar.fromTinybars(0)) // Set the initial balance to 0 HBAR
.execute(client)

Im getting the same error on token transferring, associating , and any other transaction related tasks.

Steps to reproduce

Integrate Hedera-swift-sdk

code on AppDelgate:

let transactionResponse = try await AccountCreateTransaction()
.key(.single(newPublicKey)) // Set the public key for the account
.initialBalance(Hbar.fromTinybars(0)) // Set the initial balance to 0 HBAR
.execute(client)

Additional context

No response

Hedera network

mainnet

Version

latest

Operating system

macOS

[RickyLB]

@ramesh-aureus Thanks for your patience. Seems though bounds will need to be established in subtracting() to prevent nanos from being greater unixTimestampNanos. Should be a quick fix!

[Ramesh-Giri]

Thanks for your response @RickyLB . Is there anything i need to do my end?

[ramesh-aureus]

@RickyLB its working pretty fine on IOS simulator though.. im only having problems on the real devices.

[ramesh-aureus]

Any update on this @RickyLB ??

[RickyLB]

Hi @ramesh-aureus, can you check the value of Timestamp.now.UnixTimestampNanos before the program crashes?

[ramesh-aureus]

my code:

func getHederaTimestampNanos() -> UInt64 {
    let seconds = UInt64(Date().timeIntervalSince1970)  // Get current Unix time in seconds
    let nanos = UInt64(Date().timeIntervalSince1970.truncatingRemainder(dividingBy: 1) * 1_000_000_000) // Get nanoseconds part
    return (seconds * 1_000_000_000) + nanos
}

log:
Debug: About to execute transaction 1738295910254300117

xcode descriptions:

nanos UInt64 6183871904
self Hedera.Timestamp
seconds UInt64 0
subSecondNanos UInt32 2147483647

@RickyLB