[Bug libstdc++/67362] New: std::regex("((.)", std::regex_constants::basic) throws

[Bug libstdc++/67362] New: std::regex("((.)", std::regex_constants::basic) throws

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

            Bug ID: 67362
           Summary: std::regex("((.)", std::regex_constants::basic) throws
           Product: gcc
           Version: 4.9.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: timshen at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
  Target Milestone: ---

#include <regex>
#include <iostream>

int main()
{
  std::regex re("((.)", std::regex_constants::basic);
}


terminate called after throwing an instance of 'std::regex_error'
  what():  regex_error
Aborted (core dumped)


For a POSIX BRE neither '(' nor ')' should be special, so this should not fail.

[Bug libstdc++/67362] std::regex("((.)", std::regex_constants::basic) throws

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2015-08-26
     Ever confirmed|0                           |1

[Bug libstdc++/67362] std::regex("((.)", std::regex_constants::basic) throws

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

--- Comment #1 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Fri Aug 28 02:35:21 2015
New Revision: 227289

URL: https://gcc.gnu.org/viewcvs?rev=227289&root=gcc&view=rev
Log:
        PR libstdc++/67362
        * include/bits/regex_scanner.tcc (_Scanner<>::_M_scan_normal):
        Always returns ordinary char token if the char isn't
        considered a special char.
        * testsuite/28_regex/regression.cc: New test file for collecting
        regression testcases from, typically, bugzilla.

Added:
    trunk/libstdc++-v3/testsuite/28_regex/regression.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/regex_scanner.tcc

[Bug libstdc++/67362] std::regex("((.)", std::regex_constants::basic) throws

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

--- Comment #2 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Fri Aug 28 03:03:55 2015
New Revision: 227290

URL: https://gcc.gnu.org/viewcvs?rev=227290&root=gcc&view=rev
Log:
        Backport from mainline
        2015-08-28  Tim Shen  <timshen@google.com>

        PR libstdc++/67362
        * include/bits/regex_scanner.tcc (_Scanner<>::_M_scan_normal):
        Always returns ordinary char token if the char isn't
        considered a special char.
        * testsuite/28_regex/regression.cc: New test file for collecting
        regression testcases from, typically, bugzilla.

Added:
    branches/gcc-5-branch/libstdc++-v3/testsuite/28_regex/regression.cc
Modified:
    branches/gcc-5-branch/libstdc++-v3/ChangeLog
    branches/gcc-5-branch/libstdc++-v3/include/bits/regex_scanner.tcc

[Bug libstdc++/67362] std::regex("((.)", std::regex_constants::basic) throws

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

--- Comment #3 from Tim Shen <timshen at gcc dot gnu.org> ---
Author: timshen
Date: Fri Aug 28 03:39:53 2015
New Revision: 227291

URL: https://gcc.gnu.org/viewcvs?rev=227291&root=gcc&view=rev
Log:
        Backport from mainline
        2015-08-28  Tim Shen  <timshen@google.com>

        PR libstdc++/67362
        * include/bits/regex_scanner.tcc (_Scanner<>::_M_scan_normal):
        Always returns ordinary char token if the char isn't
        considered a special char.
        * testsuite/28_regex/regression.cc: New test file for collecting
        regression testcases from, typically, bugzilla.

Added:
    branches/gcc-4_9-branch/libstdc++-v3/testsuite/28_regex/regression.cc
Modified:
    branches/gcc-4_9-branch/libstdc++-v3/ChangeLog
    branches/gcc-4_9-branch/libstdc++-v3/include/bits/regex_scanner.tcc

[Bug libstdc++/67362] std::regex("((.)", std::regex_constants::basic) throws

[timshen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

Tim Shen <timshen at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Tim Shen <timshen at gcc dot gnu.org> ---
Fixed.

[Bug libstdc++/67362] std::regex("((.)", std::regex_constants::basic) throws

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67362

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |5.3
             Blocks|                            |102445


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102445
[Bug 102445] [meta-bug] std::regex issues