Re: std::vector<boost::xpressive::sregex> fails to compile using gcc

From:

"flewpaul@gmail.com" <flewpaul@gmail.com>

Newsgroups:

comp.lang.c++

Date:

Mon, 25 Jan 2010 10:30:22 -0800 (PST)

Message-ID:

<74722c71-07f9-4d4d-9f0b-7a3ac7f49954@b2g2000yqi.googlegroups.com>

On Jan 22, 9:19 am, "flewp...@gmail.com" <flewp...@gmail.com> wrote:

On Jan 22, 5:41 am, Christophe Bourez <bou...@gmail.com> wrote:

On 22 jan, 14:38, Jeff Flinn <TriumphSprint2...@hotmail.com> wrote:

flewp...@gmail.com wrote:

Hi

I'm trying to use a vector of Boost Xpressive sregex objects. VS200=

compiles my code successfully, but gcc 3.4 and 4.1 fail with:

<path>/include/c++/3.4.5/bits/stl_construct.h: In function `void
std::__destroy_aux(_ForwardIterator, _ForwardIterator, __false_type=

)

[with _ForwardIterator = boost::xpressive::sregex*]':
<path>/include/c++/3.4.5/bits/stl_construct.h:152: instantiated=

from

`void std::_Destroy(_ForwardIterator, _ForwardIterator) [with
_ForwardIterator = boost::xpressive::sregex*]'
<path>/include/c++/3.4.5/bits/stl_vector.h:256: instantiated fr=

`std::vector<_Tp, _Alloc>::~vector() [with _Tp =
boost::xpressive::sregex, _Alloc =
std::allocator<boost::xpressive::sregex>]'
..\test.cpp:9: instantiated from here
<path>/include/c++/3.4.5/bits/stl_construct.h:120: error: no matchi=

function for call to `_Destroy(const
boost::proto::exprns_::expr<boost::proto::tag::address_of,
boost::proto::argsns_::list1<boost::xpressive::basic_regex<__gnu_cx=

x::__normal_iterator<const

char*, std::basic_string<char, std::char_traits<char>,
std::allocator<char> > > >&>, 1l>)'

The code to generate this is:

#include <vector>
#include <boost/xpressive/xpressive_dynamic.hpp>

using namespace std;
using namespace boost::xpressive;

int main(int argc, char* argv[])
{
vector<sregex> vec;
return 0;
}

My guess is that sregex is an incomplete type in this context, and II=

RC,

std::vector requires complete type for instantiation. Did you mean to
include xpressive_dynamic.hpp? sregex probably is only forward declar=

with this include. Did you mean to include xpressive_static.hpp?

Jeff

Hi Jeff,

In my test, I did
#include <boost/xpressive/xpressive.hpp> which includes both dynamic
and static.

Christophe

Thanks for the responses. I'll look at my code to see whether a list<>
will offer the performance I need in this case. I did cross-post to
gnu.g++.bug but haven't got any response - I'll post on the Boost list
aswell.

Many Thanks

Paul

Posted on Boost bug list, turns out it has already been reported and
fixed for Boost 1.42 (https://svn.boost.org/trac/boost/ticket/3712)