# New Ticket Created by Sam S. # Please include the string: [perl #124185] # in the subject line of all future correspondence about this issue. # <URL: https://rt.perl.org/Ticket/Display.html?id=124185 >
Trying to print a Unicode codepoint like 55296 can fail with multiple different failure modes, none of which are very helpful, and at least one of which (segfaullt) is a bug: $ perl6 -e 'say 55296.chr' Iteration past end of grapheme iterator in method print at src/gen/m-CORE.setting:17885 in sub say at src/gen/m-CORE.setting:18644 in block <unit> at -e:1 $ perl6 -e 'say "A" ~ 55296.chr' Error encoding UTF-8 string near grapheme position 0 with codepoint 65 in method print at src/gen/m-CORE.setting:17885 in sub say at src/gen/m-CORE.setting:18644 in block <unit> at -e:1 $ perl6 -e 'say "A", 55296.chr' A/home/smls/.rakudobrew/bin/perl6: line 2: 20876 Segmentation fault (core dumped) ... Discussion: moritz: well, it could die with "Illegal codepoint" moritz: or something like that moritz: but everything else is either a bug, or an LTA error (which is also a bug, IMHO) TimToady: m: say uniname(55296) camelia: rakudo-moar 9210cc: OUTPUT«<Non Private Use High Surrogate>» smls: Does that mean it should print "Invalid code point?" for that TimToady: maybe more "No true codepoint would ever be a surrogate!"