From @masak

<szabgab> rakudo​: say index "abcbd", "x"
<p6eval> rakudo ba09b2​: OUTPUT«Attempt to index from negative position␤␤»
<szabgab> rakudo​: index "abcbd", "x"
<p6eval> rakudo ba09b2​: ( no output )
<moritz_> it returns a failure object
<moritz_> which throws an exception if used
<Matt-W> ooooh
<Matt-W> and when .Str is called on it, it tells you about the failure?
<masak> rakudo​: 1+index("abcbd", "x")
<p6eval> rakudo ba09b2​: OUTPUT«Attempt to index from negative position␤»
<moritz_> but that error message is bogus nonetheless
<Matt-W> it is a strange error message to be produced in that situation
* masak submits rakudobug

From @pmichaud

Rakudo 95a2c4f now gives a more useful error message when returning the
failure for not finding a given substring​:

  pmichaud@​orange​:~/rakudo$ ./perl6
  > say index "abcd", "x"
  Substring 'x' not found in 'abcd'

Closing ticket, thanks!

Pm

@pmichaud - Status changed from 'new' to 'resolved'