[Boost-bugs] [Boost C++ Libraries] #8843: bugs: xpressive: assertion begin!=end fails, instead of throwing an exception

Subject: [Boost-bugs] [Boost C++ Libraries] #8843: bugs: xpressive: assertion begin!=end fails, instead of throwing an exception
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-07-18 07:31:54

#8843: bugs: xpressive: assertion begin!=end fails, instead of throwing an
exception
-------------------------------------+--------------------------
 Reporter:  richelbilderbeek@…       |      Owner:  eric_niebler
     Type:  Bugs                     |     Status:  new
Milestone:  To Be Determined         |  Component:  xpressive
  Version:  Boost 1.54.0             |   Severity:  Problem
 Keywords:  xpressive debug release  |
-------------------------------------+--------------------------
 When a defect string ("\d{4} [") is compiled to be a sregex, then an
 assertion fails, instead of an exception being thrown. This is only in
 debug mode: in release mode, an exception is thrown as expected.

 The full error message:

 {{{
 Assertion failed!

 Program: myfolder/myexe.exe
 File:
 myfolder/boost_1_54_0/boost/xpressive/detail/dynamic/parse_charset.hpp,
 Line 201

 Expression: begin != end
 }}}

 The full code:

 {{{
 #include <iostream>

 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-local-typedefs"
 #include <boost/xpressive/xpressive.hpp>
 #pragma GCC diagnostic pop

 int main()
 {
   try
   {
     boost::xpressive::sregex::compile("\\d{4} [");
   }
   catch (boost::xpressive::regex_error& e)
   {
     std::cout << "OK\n";
     return 0;
   }
   return 1;
 }
 }}}

 The Qt Creator project file:

 {{{
 TEMPLATE = app
 CONFIG += console
 CONFIG -= app_bundle
 CONFIG -= qt
 SOURCES += main.cpp
 QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra -Werror

 INCLUDEPATH += \
   ../../Libraries/boost_1_54_0

 CONFIG(release, debug|release) {
   DEFINES += NDEBUG
 }
 }}}

 Technicalities:

 * Operating system: Windows Windows XP
 * IDE: Qt Creator 2.7.2
 * Project type: Console application
 * C++ standard: C++11
 * Compiler(s): G++ 4.8.0
 * Library used: Boost: version 1.54.0

 The full Qt Creator project is added to this ticket.

 Thanks for Boost.Xpressive!

 Richel Bilderbeek

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8843>
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