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* [Bug ada/95953] New: UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF. @ 2020-06-29 2:11 trashgod at gmail dot com 2020-06-29 10:33 ` [Bug ada/95953] " charlet at gcc dot gnu.org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: trashgod at gmail dot com @ 2020-06-29 2:11 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95953 Bug ID: 95953 Summary: UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF. Product: gcc Version: 7.3.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ada Assignee: unassigned at gcc dot gnu.org Reporter: trashgod at gmail dot com Target Milestone: --- Created attachment 48798 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48798&action=edit complete example that reproduces problem and tests fix The library function Ada.Strings.UTF_Encoding.Conversions.Convert for UTF_16 to UTF_8 fails for values in the range U+10000 to U+10FFFF. Byte three of the four byte value is malformed; yyyyyyyy only needs to be shifted _two_ places left: Result (Len + 3) := Character'Val (2#10_000000# or Shift_Left (yyyyyyyy and 2#1111#, 2) -- originally 4 or Shift_Right (xxxxxxxx, 6)); A complete example, utftest.adb, is attached and discussed here: https://stackoverflow.com/a/62605993/230513 The output shows the code point, the expected binary representation of the UTF-8 encoding, the conversion to UTF-16, the incorrect UTF-8 conversion, and the correct UTF-8 conversion. $ gcc -v …gcc version 7.3.1 20180524 (for GNAT Community 2018 20180523) (GCC) $ gnatmake utftest.adb && ./utftest gcc -c utftest.adb gnatbind -x utftest.ali gnatlink utftest.ali Codepoint: 16#1D11E# UTF-8: 4: 2#11110000# 2#10011101# 2#10000100# 2#10011110# UTF-16: 2: 2#1101100000110100# 2#1101110100011110# UTF-8: 4: 2#11110000# 2#10011101# 2#10010000# 2#10011110# UTF-8: 4: 2#11110000# 2#10011101# 2#10000100# 2#10011110# OK ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/95953] UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF. 2020-06-29 2:11 [Bug ada/95953] New: UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF trashgod at gmail dot com @ 2020-06-29 10:33 ` charlet at gcc dot gnu.org 2020-06-29 11:55 ` charlet at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: charlet at gcc dot gnu.org @ 2020-06-29 10:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95953 Arnaud Charlet <charlet at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Target Milestone|--- |11.0 Assignee|unassigned at gcc dot gnu.org |charlet at gcc dot gnu.org Status|UNCONFIRMED |ASSIGNED CC| |charlet at gcc dot gnu.org Last reconfirmed| |2020-06-29 --- Comment #1 from Arnaud Charlet <charlet at gcc dot gnu.org> --- Thanks for the detailed report and fix, I'll take it from there. Arno ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/95953] UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF. 2020-06-29 2:11 [Bug ada/95953] New: UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF trashgod at gmail dot com 2020-06-29 10:33 ` [Bug ada/95953] " charlet at gcc dot gnu.org @ 2020-06-29 11:55 ` charlet at gcc dot gnu.org 2020-10-16 7:37 ` cvs-commit at gcc dot gnu.org 2020-10-16 12:17 ` charlet at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: charlet at gcc dot gnu.org @ 2020-06-29 11:55 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95953 Arnaud Charlet <charlet at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |simon at pushface dot org --- Comment #2 from Arnaud Charlet <charlet at gcc dot gnu.org> --- *** Bug 95959 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/95953] UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF. 2020-06-29 2:11 [Bug ada/95953] New: UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF trashgod at gmail dot com 2020-06-29 10:33 ` [Bug ada/95953] " charlet at gcc dot gnu.org 2020-06-29 11:55 ` charlet at gcc dot gnu.org @ 2020-10-16 7:37 ` cvs-commit at gcc dot gnu.org 2020-10-16 12:17 ` charlet at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2020-10-16 7:37 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95953 --- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Pierre-Marie de Rodat <pmderodat@gcc.gnu.org>: https://gcc.gnu.org/g:cfe989ca49dab9a3fda9e5401a932db168848304 commit r11-3984-gcfe989ca49dab9a3fda9e5401a932db168848304 Author: Arnaud Charlet <charlet@adacore.com> Date: Mon Jun 29 04:18:27 2020 -0400 [Ada] Convert from UTF_16 to UTF_8 fails for large values gcc/ada/ PR ada/95953 * libgnat/a-suenco.adb (Convert): Fix handling of third UTF-8 byte. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug ada/95953] UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF. 2020-06-29 2:11 [Bug ada/95953] New: UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF trashgod at gmail dot com ` (2 preceding siblings ...) 2020-10-16 7:37 ` cvs-commit at gcc dot gnu.org @ 2020-10-16 12:17 ` charlet at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: charlet at gcc dot gnu.org @ 2020-10-16 12:17 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95953 Arnaud Charlet <charlet at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|ASSIGNED |RESOLVED --- Comment #4 from Arnaud Charlet <charlet at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-10-16 12:17 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-06-29 2:11 [Bug ada/95953] New: UTF Convert for UTF_16 to UTF_8 fails for values in U+10000 to U+10FFFF trashgod at gmail dot com 2020-06-29 10:33 ` [Bug ada/95953] " charlet at gcc dot gnu.org 2020-06-29 11:55 ` charlet at gcc dot gnu.org 2020-10-16 7:37 ` cvs-commit at gcc dot gnu.org 2020-10-16 12:17 ` charlet at gcc dot gnu.org
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