Hi Boost Users

 

I met a crash in following code after I upgrade from 1.44 to 1.74,

 

When I used “-O1 -DNDEBUG” to compile, it will crash.

But when  I used “-O1” or “-DNDEBUG” or “-O0 -DNDEBUG”, it will not crash.

In 1.44, all of them are ok.

 

My GCC version is 4.1.2 and test in redhat-AS 4 32 bit.

 

callstack

#0 at ./boost_1_74_0_bk/boost/xpressive/detail/static/transmogrify.hpp:160

160                 char const *name_end = m.name_ + std::strlen(m.name_);

#1  at ./boost_1_74_0_bk/boost/proto/transform/detail/preprocessed/fold_impl.hpp:80

#2  at ./boost_1_74_0_bk/boost/proto/transform/detail/preprocessed/fold_impl.hpp:80

#3  at ./boost_1_74_0_bk/boost/xpressive/detail/static/compile.hpp:79

#4  at ./boost_1_74_0_bk/boost/xpressive/detail/static/compile.hpp:99

#5  0x08049d5f in main () at ./boost_1_74_0_bk/boost/xpressive/basic_regex.hpp:252

 

Can you help to check this problem?

 

Best regards

Forston

 

callstack

 

Following is  source code.

#include <boost/xpressive/basic_regex.hpp>

#include <boost/xpressive/regex_primitives.hpp>

#include <boost/xpressive/match_results.hpp>

#include <boost/xpressive/regex_algorithms.hpp>

 

int main(int argc, char* argv[])

{

    std::wstring uri_string = L"https://192.168.1.1/test";

    printf("begin regex_match  %ls \n ", uri_string.c_str());

 

    using namespace boost::xpressive;

    static wsregex const uri_regex = bos

            >> (s1 = (alpha >> *(alnum | L'+' | L'-' | L'.')))

            >> L"://" >> (s2 = *(alnum | L'-' | L'.' | L':' | L'@' | L'[' | L']' | L'_'))

            >> !(as_xpr(L'/')

            >> (s3 = (*_)))

            >> eos

            ;

 

    wsmatch result;

    try

    {

        if (!regex_match(uri_string, result, uri_regex))

        {

                printf( "regex_match failed %ls \n ",  uri_string.c_str());

                return -1;

        }

 

    }

    catch (std::exception& e)

    {

        printf("regex_match failed %ls \n ", uri_string.c_str());

        return -1;

    }

 

    printf("end regex_match success %ls \n ", uri_string.c_str());

    return 0;

}