id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
8843,"bugs: xpressive: assertion begin!=end fails, instead of throwing an exception",richelbilderbeek@…,Eric Niebler,"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",Bugs,closed,To Be Determined,xpressive,Boost 1.54.0,Problem,fixed,xpressive debug release,