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* [Bug libstdc++/66359] New: Regex Fails to match
@ 2015-06-01 9:53 georg@schorsch-tech.de
2015-06-01 9:54 ` [Bug libstdc++/66359] " georg@schorsch-tech.de
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: georg@schorsch-tech.de @ 2015-06-01 9:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
Bug ID: 66359
Summary: Regex Fails to match
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: georg@schorsch-tech.de
Target Milestone: ---
// #define USE_STD
#ifdef USE_STD
#include <regex>
#else
#include <boost/regex.hpp>
#endif
#include <iostream>
#include <string>
#ifdef USE_STD
namespace rx = std;
#else
namespace rx = boost;
#endif
int main(int argc, char* argv[])
{
std::string line{ "Name:\tPiko_10_1 " };
rx::regex line_expression("^Name:\t {0,2}([a-zA-Z_0-9-]{1,20})
{0,20}$");
rx::match_results<std::string::const_iterator> line_what;
if (rx::regex_match(line, line_what, line_expression))
{
std::cout << "Found it" << std::endl;
}
else
{
std::cout << "ERROR: Did not find it" << std::endl;
return 1;
}
return 0;
}
Compile with:
std: g++ --std=c++11 main.cpp -o test-std.exe
Boost: g++ --std=c++11 main.cpp -o test-boost.exe -I PATH_TO_BOOST_INCLUDE _L
PATH_TO_BOOST_REGEX_LIB
I tried to convert an application from boost:.regex to std::regex. This example
is the boiled down example from my application.
With the define USE_STD defined, i get the error that this regex doesnt match.
With boost::regex i get a match. I tried this regex on TDM-GCC-4.9.2 and on
Linux gcc-4.9.2 (gentoo).
I know regex is not implemented Prior 4.9.0. I am on 4.9.2 so i guess it should
work. Other regexes like
std::regex line_expression("([a-zA-Z_]+) ?= ?([a-zA-Z0-9./]+)");
work as expected.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/66359] Regex Fails to match
2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
@ 2015-06-01 9:54 ` georg@schorsch-tech.de
2015-06-01 11:46 ` timshen at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: georg@schorsch-tech.de @ 2015-06-01 9:54 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
--- Comment #1 from georg@schorsch-tech.de ---
The example main.cpp from abouve works on other Compilers like MSVC-2013
(VS12).
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/66359] Regex Fails to match
2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
2015-06-01 9:54 ` [Bug libstdc++/66359] " georg@schorsch-tech.de
@ 2015-06-01 11:46 ` timshen at gcc dot gnu.org
2015-06-01 15:19 ` georg@schorsch-tech.de
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: timshen at gcc dot gnu.org @ 2015-06-01 11:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
Tim Shen <timshen at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2015-06-01
CC| |timshen at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from Tim Shen <timshen at gcc dot gnu.org> ---
Thanks for reporting! gcc 5.1 works fine to me:
~ % /usr/bin/g++ --version
g++ (GCC) 5.1.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
~ % /usr/bin/g++ -DUSE_STD -std=c++11 b.cc && ./a.out
Found it
My current guess is this patch fixed the bug:
https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=217461.
I can do a backport when I have time.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/66359] Regex Fails to match
2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
2015-06-01 9:54 ` [Bug libstdc++/66359] " georg@schorsch-tech.de
2015-06-01 11:46 ` timshen at gcc dot gnu.org
@ 2015-06-01 15:19 ` georg@schorsch-tech.de
2015-06-01 15:25 ` georg@schorsch-tech.de
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: georg@schorsch-tech.de @ 2015-06-01 15:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
--- Comment #3 from georg@schorsch-tech.de ---
I tried to apply that revision to gcc-4.9.2. Now i get the following error.
g++ -DUSE_STD -std=c++11 main.cpp
In file included from
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2/include/g++-v4/regex:58:0,
from main.cpp:2:
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2/include/g++-v4/bits/regex.h:65:5:
warning: inline function 'std::shared_ptr<std::__detail::_NFA<_TraitsT> >
std::__detail::__compile_nfa(const typename _TraitsT::char_type*, const
typename _TraitsT::char_type*, const _TraitsT&,
std::regex_constants::syntax_option_type) [with _TraitsT =
std::regex_traits<char>; typename _TraitsT::char_type = char]' used but never
defined
__compile_nfa(const typename _TraitsT::char_type* __first,
^
/tmp/ccMywN21.o: In function `std::basic_regex<char, std::regex_traits<char>
>::basic_regex<char const*>(char const*, char const*,
std::regex_constants::syntax_option_type)':
main.cpp:(.text._ZNSt11basic_regexIcSt12regex_traitsIcEEC2IPKcEET_S6_NSt15regex_constants18syntax_option_typeE[_ZNSt11basic_regexIcSt12regex_traitsIcEEC5IPKcEET_S6_NSt15regex_constants18syntax_option_typeE]+0xd5):
undefined reference to
`std::shared_ptr<std::__detail::_NFA<std::regex_traits<char> > >
std::__detail::__compile_nfa<std::regex_traits<char>
>(std::regex_traits<char>::char_type const*, std::regex_traits<char>::char_type
const*, std::regex_traits<char> const&,
std::regex_constants::syntax_option_type)'
collect2: error: ld returned 1 exit status
I added my applied patch too. I copied the files from your revision to my tree
and used git to create that patch.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/66359] Regex Fails to match
2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
` (2 preceding siblings ...)
2015-06-01 15:19 ` georg@schorsch-tech.de
@ 2015-06-01 15:25 ` georg@schorsch-tech.de
2015-06-05 4:59 ` timshen at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: georg@schorsch-tech.de @ 2015-06-01 15:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
--- Comment #4 from georg@schorsch-tech.de ---
Created attachment 35666
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35666&action=edit
tried backport of 217461
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/66359] Regex Fails to match
2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
` (3 preceding siblings ...)
2015-06-01 15:25 ` georg@schorsch-tech.de
@ 2015-06-05 4:59 ` timshen at gcc dot gnu.org
2015-06-05 5:06 ` timshen at gcc dot gnu.org
2023-07-20 11:47 ` redi at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: timshen at gcc dot gnu.org @ 2015-06-05 4:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
--- Comment #5 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Fri Jun 5 04:58:26 2015
New Revision: 224144
URL: https://gcc.gnu.org/viewcvs?rev=224144&root=gcc&view=rev
Log:
PR libstdc++/66359
Backport from mainline
2014-11-13 Tim Shen <timshen@google.com>
PR libstdc++/63775
* include/bits/regex_compiler.h (_Compiler<>::_M_expression_term,
_BracketMatcher<>::_M_make_range): Throw regex_erorr on invalid range
like [z-a]. Change _M_expression_term interface.
* include/bits/regex_compiler.tcc (
_Compiler<>::_M_insert_bracket_matcher,
_Compiler<>::_M_expression_term): Rewrite bracket expression parsing.
* testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc:
Add testcases and move file out of extended.
Added:
branches/gcc-4_9-branch/libstdc++-v3/testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc
Removed:
branches/gcc-4_9-branch/libstdc++-v3/testsuite/28_regex/algorithms/regex_match/extended/cstring_bracket_01.cc
Modified:
branches/gcc-4_9-branch/libstdc++-v3/ChangeLog
branches/gcc-4_9-branch/libstdc++-v3/include/bits/regex_compiler.h
branches/gcc-4_9-branch/libstdc++-v3/include/bits/regex_compiler.tcc
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/66359] Regex Fails to match
2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
` (4 preceding siblings ...)
2015-06-05 4:59 ` timshen at gcc dot gnu.org
@ 2015-06-05 5:06 ` timshen at gcc dot gnu.org
2023-07-20 11:47 ` redi at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: timshen at gcc dot gnu.org @ 2015-06-05 5:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
Tim Shen <timshen at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from Tim Shen <timshen at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug libstdc++/66359] Regex Fails to match
2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
` (5 preceding siblings ...)
2015-06-05 5:06 ` timshen at gcc dot gnu.org
@ 2023-07-20 11:47 ` redi at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: redi at gcc dot gnu.org @ 2023-07-20 11:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66359
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.9.3
^ permalink raw reply [flat|nested] 8+ messages in thread
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2015-06-01 9:53 [Bug libstdc++/66359] New: Regex Fails to match georg@schorsch-tech.de
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2015-06-01 11:46 ` timshen at gcc dot gnu.org
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