On Wed, 2015-09-30 at 23:35 -0700, Ali Çehreli via Digitalmars-d-learn wrote: > On 09/30/2015 10:46 PM, Russel Winder via Digitalmars-d-learn wrote: > > I have the code: > > > > reduce!"a+b"(x) > > > > where x is a int[] and I get an exception "Enforcement failed" at > > run > > time. This gives me enough information to say ¿que? > > > > It's coming from the following no-message enforce(): > > enforce(!r.empty); > > > https://github.com/D-Programming-Language/phobos/blob/master/std/algo > rithm/iteration.d#L2481 > > You are using the no-seed version of reduce(), which uses the first > element as seed, which means that the range cannot be empty.
Well that explanation (*) makes it abundantly clear that the error reporting from this part of Phobos is distinctly substandard, let alone below par. (*) Which is clear and informative! -- Russel. ============================================================================= Dr Russel Winder t: +44 20 7585 2200 voip: sip:russel.win...@ekiga.net 41 Buckmaster Road m: +44 7770 465 077 xmpp: rus...@winder.org.uk London SW11 1EN, UK w: www.russel.org.uk skype: russel_winder
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