https://bugs.kde.org/show_bug.cgi?id=415410
Bug ID: 415410
Summary: bad display of string values containing Unicode
supplemental characters
Product: kdevelop
Version: 5.4.2
Platform: Ubuntu Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: CPP Debugger
Assignee: kdevelop-bugs-n...@kde.org
Reporter: andy.henin...@gmail.com
CC: niko.s...@gmail.com
Target Milestone: ---
SUMMARY
The C++ debugger display of string values is garbled when the string contains
Unicode supplemental characters, that is, character code points > 64k
STEPS TO REPRODUCE
1. Debug the following test program. The emoji 😎 is Unicode U+1F60E.
=========
#include <iostream>
int main() {
const char *cs8 {"Hello, Worldβ😎.\n"};
const char16_t *cs16 {u"Hello, Worldβ😎.\n"};
const char32_t *cs32 {U"Hello, Worldβ😎.\n"};
std::cout << cs8 << std::endl;
}
==========
2. Put a break point on the std::cout line.
3. Examine the local variables in the variables debug window
OBSERVED RESULT
cs8 0x4d9ca0 <str> "Hello, Worldβ�\237\230\216.\n"
cs16 0x4d9ce0 <str> u"Hello, Worldβ�\237\230\216.\n"
cs32 0x4d9d40 <str> U"Hello, Worldβ�\237\230\216.\n"
EXPECTED RESULT
cs8 0x4d9ca0 <str> "Hello, Worldβ😎.\n"
cs16 0x4d9ce0 <str> u"Hello, Worldβ😎.\n"
cs32 0x4d9d40 <str> U"Hello, Worldβ😎.\n"
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 19.10
(available in About System)
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.62.0
Qt Version: 5.12.4
ADDITIONAL INFORMATION
Raw gdb, run from the command line, works correctly.
(gdb) b 8
Breakpoint 1 at 0x11d6: file suppl.cpp, line 8.
(gdb) r
Starting program: /home/andy/icprogs/a.out
Breakpoint 1, main () at suppl.cpp:8
8 std::cout << cs8 << std::endl;
(gdb) p cs8
$1 = 0x555555556009 "Hello, Worldβ😎.\n"
(gdb) p cs16
$2 = 0x555555556020 u"Hello, Worldβ😎.\n"
(gdb) p cs32
$3 = 0x555555556048 U"Hello, Worldβ😎.\n"
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