Bugs item #747552, was opened at 2003-06-02 07:21
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Category: graph
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Jeremy Siek (jsiek)
Summary: Bug in edge.hpp:99 std::ostream is NOT a template
Initial Comment:
Compiling boost with Intel compiler I’ve got such an error:
g++ -c -Wall -ftemplate-depth-100 -
DBOOST_PYTHON_DYNAMIC_LIB -
DBOOST_PYTHON_SOURCE -g -O0 -fno-inline -fPIC -
I"libs/python/build" -I "/usr/include/python2.2" -
I "/home/users/vsysoltx/boost_loki/boost_1_30_0" -
o "libs/python/build/bin/libboost_python.so/gcc/debug/run
time-link-dynamic/shared-linkable-
true/inheritance.o" "libs/python/build/../src/object/inherit
ance.cpp"
…
/home/users/vsysoltx/boost_loki/boost_1_30_0/boost/gra
ph/detail/edge.hpp(99): error: type "std::ostream" may
not have a template argument list
std::ostream<Char, Traits>&
^
…
The problem is in graph/detail/edge.hpp:99:
template <class Char, class Traits, class D, class V>
std::ostream<Char, Traits>&
operator<<(std::ostream<Char, Traits>& os,
const boost::detail::edge_desc_impl<D,V>& e)
You should have known that std::stream is not a
template - it is simply an end-user type defined as:
typedef basic_ostream<char, char_traits<char> >
ostream;
So template arguments are not suitable for it. Gcc 3.2
accepts the code because of an ugly bug in compiler,
gcc 3.4 has this bug fixed, so it emits the same error as
Intel compiler emits. The code in boost must be
changed, I suppose you meant basic_ostream instead
of ostream, with this assumption I’ve done the patch:
*** boost/graph/detail/edge.hpp.orig 2003-06-02
17:05:49.000000000 +0400
--- boost/graph/detail/edge.hpp 2003-06-02
17:20:34.000000000 +0400
***************
*** 96,103 ****
}
#else
template <class Char, class Traits, class D, class V>
! std::ostream<Char, Traits>&
! operator<<(std::ostream<Char, Traits>& os,
const boost::detail::edge_desc_impl<D,V>&
e)
{
return os << "(" << e.m_source << "," <<
e.m_target << ")";
--- 96,103 ----
}
#else
template <class Char, class Traits, class D, class V>
! std::basic_ostream<Char, Traits>&
! operator<<(std::basic_ostream<Char, Traits>& os,
const boost::detail::edge_desc_impl<D,V>&
e)
{
return os << "(" << e.m_source << "," <<
e.m_target << ")";
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