id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,lang,patch,platform
1794,Linear hash scan assumes non-NULL keys,nwellnhof,luben,"The linear hash iterator macro assumes that all keys in a hash are non-NULL. This can cause all kinds of problems with zero integer keys. For example, the following PIR code crashes on my machine because the hash entry doesn't get marked during GC:

{{{
.sub 'main' :main
    .include ""hash_key_type.pasm""
    .local pmc hash
    hash = new ['Hash']
    hash = .Hash_key_type_int

    hash[0] = 'foo'

    sweep 1

    $S1 = 'abc'
    $S2 = 'def'

    $S0 = hash[0]
    say $S0
.end
}}}
",bug,closed,normal,,core,trunk,medium,fixed,,,,,