A Timeout Behavior When Using the Chunks Function

[weucode]

Description

When running the following Q# program,a timeout behavior occurred,and the execution time is over 2 minutes.I guess the special value(0) of the first parameter in Chunks results in it.Is my guess right?Looking forward to your reply. Thank you!

Testcase

namespace NameSpace {
	open Microsoft.Quantum.Arrays;

	@EntryPoint()
	operation main() : Unit {
		mutable NISLParameter0 = 0;
		mutable NISLParameter1 = [1,2,3];
		mutable result = Chunks(NISLParameter0,NISLParameter1);
	}
}

Behavior

Timeout (runs for more than 2 minutes)

Environment

operating system:Windows 10

dotnet version:5.0.301

QDK:v0.23.195983

[tcNickolas]

@weucode Thank you for the report!

@msoeken Looks like we need to add a check to

QuantumLibraries/Standard/src/Arrays/Arrays.qs

Line 296 in 252613a

function Chunks<'T>(nElements : Int, arr : 'T[]) : 'T[][] {

to make sure nElements > 0, otherwise it's stuck producing empty chunks. It wouldn't even be a breaking change, since the behavior for nElements <= 0 was broken anyways. Let me know if I can help with this!

[msoeken]

Thanks @weucode for raising this. @tcNickolas, thanks, feel free to address this issue.