Hi!
Does anyone knows why std::regexp constructor fail on AIX (Japanese) or
how to make-it work?
It does not fail for simple patterns (i.e.: asdf) but for anything else I
get an exception throwing std::length_error.
It works fine for English, Spanish, Italian, French and German languages.
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/opt/freeware/libexec/gcc/powerpc-ibm-aix7.1.0.0/7.3.1/lto-wrapper
Target: powerpc-ibm-aix7.1.0.0
Configured with: ../gcc-7.3.1-20180303/configure --with-as=/usr/bin/as --with-ld=/usr/bin/ld --enable-languages=c,c++,fortran --prefix=/opt/freeware --mandir=/opt/freeware/man --infodir=/opt/freeware/info --enable-version-specific-runtime-libs --disable-nls --enable-decimal-float=dpd --enable-bootstrap --build=powerpc-ibm-aix7.1.0.0
Thread model: aix
gcc version 7.3.1 20180303 (GCC)
The code:
#include <iostream>
#include <regex>
#include <locale.h>
using namespace std;
int main()
{
char* pLocale = setlocale(LC_ALL, NULL);
std::cout << "setlocale(): " << pLocale << std::endl;
const std::regex r1("^(\\s+)?(.*?)(\\s+)?=(\\s+)?(.*?)(\\s+)?");
std::cout << "std::regex r1: OK" << std::endl;
setlocale(LC_ALL, "Ja_JP");
pLocale = setlocale(LC_ALL, NULL);
std::cout << "setlocale(): " << pLocale << std::endl;
const std::regex r2("asdf");
std::cout << "std::regex r2: OK" << std::endl;
// const std::regex r3("^(\\s+)?(.*?)(\\s+)?=(\\s+)?(.*?)(\\s+)?");
const std::regex r3("\\s+");
std::cout << "std::regex r3: OK" << std::endl;
return 0;
}
The output:
$ ./a.out
setlocale(): C C C C C C
std::regex r1: OK
setlocale(): Ja_JP Ja_JP Ja_JP Ja_JP Ja_JP Ja_JP
std::regex r2: OK
terminate called after throwing an instance of 'std::length_error'
what(): basic_string::append
IOT/Abort trap (core dumped)
$
$ gdb -c ./core ./a.out
...
(gdb) backtrace
#0 0x090000000057ff14 in pthread_kill () from /usr/lib/libpthreads.a(shr_xpg5_64.o)
#1 0x090000000057f768 in _p_raise () from /usr/lib/libpthreads.a(shr_xpg5_64.o)
#2 0x090000000003956c in raise () from /usr/lib/threads/libc.a(shr_64.o)
#3 0x0900000000055f68 in abort () from /usr/lib/threads/libc.a(shr_64.o)
#4 0x0900000001c91740 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lpp/pd/lib64/libstdc++.a(libstdc++.so.6)
#5 0x0900000001ca0a4c in __cxxabiv1::__terminate(void (*)()) () from /usr/lpp/pd/lib64/libstdc++.a(libstdc++.so.6)
#6 0x0900000001c91530 in std::terminate() () from /usr/lpp/pd/lib64/libstdc++.a(libstdc++.so.6)
#7 0x0900000001c9fc90 in __cxa_rethrow () from /usr/lpp/pd/lib64/libstdc++.a(libstdc++.so.6)
#8 0x0900000001cdbc50 in std::__cxx11::collate<char>::do_transform () from /usr/lpp/pd/lib64/libstdc++.a(libstdc++.so.6)
#9 0x0900000001cfea54 in std::__cxx11::collate<char>::transform () from /usr/lpp/pd/lib64/libstdc++.a(libstdc++.so.6)
#10 0x000000010002dba0 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > std::__cxx11::regex_traits<char>::transform<char*>(char*, char*) const ()
#11 0x000000010002c6c0 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > std::__cxx11::regex_traits<char>::transform_primary<char const*>(char const*, char const*) const ()
#12 0x000000010002ae60 in std::__detail::_BracketMatcher<std::__cxx11::regex_traits<char>, false, false>::_M_apply(char, std::integral_constant<bool, false>) const::{lambda()#1}::operator()() const ()
#13 0x000000010002ab2c in std::__detail::_BracketMatcher<std::__cxx11::regex_traits<char>, false, false>::_M_apply(char, std::integral_constant<bool, false>) const ()
#14 0x000000010002a6f8 in std::__detail::_BracketMatcher<std::__cxx11::regex_traits<char>, false, false>::_M_make_cache(std::integral_constant<bool, true>) ()
#15 0x0000000100026294 in std::__detail::_BracketMatcher<std::__cxx11::regex_traits<char>, false, false>::_M_ready() ()
#16 0x0000000100022600 in void std::__detail::_Compiler<std::__cxx11::regex_traits<char> >::_M_insert_character_class_matcher<false, false>() ()
#17 0x0000000100013208 in std::__detail::_Compiler<std::__cxx11::regex_traits<char> >::_M_atom() ()
#18 0x00000001000101d8 in std::__detail::_Compiler<std::__cxx11::regex_traits<char> >::_M_term() ()
#19 0x0000000100010028 in std::__detail::_Compiler<std::__cxx11::regex_traits<char> >::_M_alternative() ()
#20 0x000000010000fe48 in std::__detail::_Compiler<std::__cxx11::regex_traits<char> >::_M_disjunction() ()#21 0x0000000100002460 in std::__detail::_Compiler<std::__cxx11::regex_traits<char> >::_Compiler(char const*, char const*, std::locale const&, std::regex_constants::syntax_option_type) ()
#22 0x000000010000206c in std::enable_if<std::__detail::__is_contiguous_normal_iter<char const*>::value, std::shared_ptr<std::__detail::_NFA<std::__cxx11::regex_traits<char> > const> >::type std::__detail::__compile_nfa<char const*, std::__cxx11::regex_traits<char> >(char const*, char const*, std::__cxx11::regex_traits<char>::locale_type const&, std::regex_constants::syntax_option_type) ()
#23 0x0000000100001e70 in std::__cxx11::basic_regex<char, std::__cxx11::regex_traits<char> >::basic_regex<char const*>(char const*, char const*, std::locale, std::regex_constants::syntax_option_type) ()
#24 0x0000000100001c40 in std::__cxx11::basic_regex<char, std::__cxx11::regex_traits<char> >::basic_regex<char const*>(char const*, char const*, std::regex_constants::syntax_option_type) ()
#25 0x0000000100001a7c in std::__cxx11::basic_regex<char, std::__cxx11::regex_traits<char> >::basic_regex(char const*, std::regex_constants::syntax_option_type) ()
#26 0x0000000100000800 in main ()
(gdb)
Thank you.
Sincerely,
Gabriel
--
// Gabriel VLASIU
//
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