https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87061
Bug ID: 87061
Summary: [9 Regression] regex cannot be compiled with
-std=c++1z -D_GLIBCXX_USE_CXX11_ABI=0
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
Target Milestone: ---
Using the regex header (like in the code snippet below) with the the options
"-std=c++1z -D_GLIBCXX_USE_CXX11_ABI=0" results in an error message.
This is a regression introduced between 2018-07-26 and 2018-08-17.
===================================
#include <regex>
===================================
In file included from /gcc-9/include/c++/9.0.0/string:52,
from /gcc-9/include/c++/9.0.0/bitset:47,
from /gcc-9/include/c++/9.0.0/regex:39,
from bug.cc:1:
/gcc-9/include/c++/9.0.0/bits/basic_string.h: In instantiation of 'class
std::basic_string<char, std::char_traits<char>,
std::pmr::polymorphic_allocator<char> >':
/gcc-9/include/c++/9.0.0/regex:77:41: required from here
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3103:63: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
3103 | typedef typename _Alloc::template rebind<_CharT>::other
_CharT_alloc_type;
|
^~~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3116:68: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
3116 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string>
iterator;
|
^~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3118:61: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
3118 |
const_iterator;
|
^~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3119:53: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
3119 | typedef std::reverse_iterator<const_iterator>
const_reverse_iterator;
|
^~~~~~~~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3120:52: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
3120 | typedef std::reverse_iterator<iterator> reverse_iterator;
| ^~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5233:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
5233 | find(const _Tp& __svt, size_type __pos = 0) const
| ^~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5311:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
5311 | rfind(const _Tp& __svt, size_type __pos = npos) const
| ^~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5395:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
5395 | find_first_of(const _Tp& __svt, size_type __pos = 0) const
| ^~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5479:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
5479 | find_last_of(const _Tp& __svt, size_type __pos = npos) const
| ^~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5560:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
5560 | find_first_not_of(const _Tp& __svt, size_type __pos = 0) const
| ^~~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5642:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<char>'
5642 | find_last_not_of(const _Tp& __svt, size_type __pos = npos) const
| ^~~~~~~~~~~~~~~~
In file included from bug.cc:3:
/gcc-9/include/c++/9.0.0/regex:77:57: error: template argument 1 is invalid
77 | using smatch = match_results<string::const_iterator>;
| ^
In file included from /gcc-9/include/c++/9.0.0/string:52,
from /gcc-9/include/c++/9.0.0/bitset:47,
from /gcc-9/include/c++/9.0.0/regex:39,
from bug.cc:1:
/gcc-9/include/c++/9.0.0/bits/basic_string.h: In instantiation of 'class
std::basic_string<wchar_t, std::char_traits<wchar_t>,
std::pmr::polymorphic_allocator<wchar_t> >':
/gcc-9/include/c++/9.0.0/regex:80:42: required from here
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3103:63: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
3103 | typedef typename _Alloc::template rebind<_CharT>::other
_CharT_alloc_type;
|
^~~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3116:68: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
3116 | typedef __gnu_cxx::__normal_iterator<pointer, basic_string>
iterator;
|
^~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3118:61: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
3118 |
const_iterator;
|
^~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3119:53: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
3119 | typedef std::reverse_iterator<const_iterator>
const_reverse_iterator;
|
^~~~~~~~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:3120:52: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
3120 | typedef std::reverse_iterator<iterator> reverse_iterator;
| ^~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5233:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
5233 | find(const _Tp& __svt, size_type __pos = 0) const
| ^~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5311:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
5311 | rfind(const _Tp& __svt, size_type __pos = npos) const
| ^~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5395:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
5395 | find_first_of(const _Tp& __svt, size_type __pos = 0) const
| ^~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5479:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
5479 | find_last_of(const _Tp& __svt, size_type __pos = npos) const
| ^~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5560:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
5560 | find_first_not_of(const _Tp& __svt, size_type __pos = 0) const
| ^~~~~~~~~~~~~~~~~
/gcc-9/include/c++/9.0.0/bits/basic_string.h:5642:2: error: no class template
named 'rebind' in 'class std::pmr::polymorphic_allocator<wchar_t>'
5642 | find_last_not_of(const _Tp& __svt, size_type __pos = npos) const
| ^~~~~~~~~~~~~~~~
In file included from bug.cc:3:
/gcc-9/include/c++/9.0.0/regex:80:58: error: template argument 1 is invalid
80 | using wsmatch = match_results<wstring::const_iterator>;
| ^
