From jkramer@nex.scrapping.cc

Currently it's possible to call .race and .hyper with degree => 0, which causes the program to freeze, probably because it's waiting for the 0 threads to do work. I propose adding a simple sanity check and throw some meaningful error when the parameter doesn't make any sense (degree < 1), as I can't think of a situation where a user might want this.

The same is true for the batch parameter, which currently accepts values < 1 without complaining and makes the program freeze.

my @​xs = ^10 .hyper(batch => 0).map​: * + 1;

my @​xs = ^10 .hyper(degree => 0).map​: * + 1;

From @lizmat

On 06 Jan 2016, at 16​:29, Jonas Kramer (via RT) <perl6-bugs-followup@​perl.org> wrote​:

# New Ticket Created by Jonas Kramer
# Please include the string​: [perl #​127191]
# in the subject line of all future correspondence about this issue.
# <URL​: https://rt-archive.perl.org/perl6/Ticket/Display.html?id=127191 >

Currently it's possible to call .race and .hyper with degree => 0, which causes the program to freeze, probably because it's waiting for the 0 threads to do work. I propose adding a simple sanity check and throw some meaningful error when the parameter doesn't make any sense (degree < 1), as I can't think of a situation where a user might want this.

The same is true for the batch parameter, which currently accepts values < 1 without complaining and makes the program freeze.

my @​xs = ^10 .hyper(batch => 0).map​: * + 1;

my @​xs = ^10 .hyper(degree => 0).map​: * + 1;

Fixed with 70640bf , tests added with 4a59ba3 , can be closed

Liz

The RT System itself - Status changed from 'new' to 'open'

From @usev6

On Wed Jan 06 13​:51​:56 2016, elizabeth wrote​:
[...]

Fixed with 70640bf , tests added with 4a59ba3 , can be closed

Thanks! I'm closing this ticket as 'resolved'.

@usev6 - Status changed from 'open' to 'resolved'