Eric Niebler wrote:
I just uploaded to the Boost Sandbox File Vault a new and improved version of BOOST_FOREACH. Since much of the code is new, I removed many of the old work-arounds, so things are likely to break until the dust settles. I have verified it works on VC6+ and gcc 3.3.3.
I would be especially interested in seeing results from BCC, EDG-based compilers, and GCC 2.9x. You can find foreach.zip at:
http://tinyurl.com/5qhj8 http://boost-sandbox.sourceforge.net/vault/index.php?directory=eric_niebler
There is a simple regression test there and a Jamfile. If it doesn't compile, try defining BOOST_FOREACH_NO_CONST_RVALUE_DETECTION. If it still doesn't compiler, try defining BOOST_FOREACH_NO_RVALUE_DETECTION. Let me know the compiler version, and which macros you needed to define to get it to work.
gcc 2.95.3: without #defines: foreach.hpp:27: Invalid token in expression with NO_CONST_RVALUE_DETECTION: same error with NO_RVALUE_DETECTION: same error icc 8.1: without #defines: ../../../boost/foreach.hpp(241): error: a new-initializer may not be specified for an array ::new(data.address()) T(t); ^ detected during: instantiation of "boost::foreach::simple_variant<T>::simple_variant(const T &) [with T=const int [5]]" at line 349 instantiation of "boost::foreach::auto_any<boost::foreach::simple_variant<const T>> boost::foreach::contain(const T &, const bool &, boost::mpl::false_) [with T=int [5]]" at line 88 of "regress.cpp" instantiation of "std::vector<int, std::allocator<int>> to_vector_foreach_byval(Range &) [with Range=const int [5]]" ../../../boost/foreach.hpp(248): error: a new-initializer may not be specified for an array ::new(data.address()) T(*that.get()); ^ detected during: instantiation of "boost::foreach::simple_variant<T>::simple_variant(const boost::foreach::simple_variant<T> &) [with T=const int [5]]" at line 113 instantiation of "boost::foreach::auto_any<T>::auto_any(const T &) [with T=boost::foreach::simple_variant<const int [5]>]" at line 349 instantiation of "boost::foreach::auto_any<boost::foreach::simple_variant<const T>> boost::foreach::contain(const T &, const bool &, boost::mpl::false_) [with T=int [5]]" at line 88 of "regress.cpp" instantiation of "std::vector<int, std::allocator<int>> to_vector_foreach_byval(Range &) [with Range=const int [5]]" icc 8.1 with NO_CONST_RVALUE_DETECTION: works icc 8.1 with NO_RVALUE_DETECTION: works gcc 3.4.3, without #defines: ../../../boost/foreach.hpp: In copy constructor `boost::foreach::simple_variant<T>::simple_variant(const boost::foreach::simple_variant<T>&) [with T = const int[5]]': regress.cpp:88: instantiated from `std::vector<int, std::allocator<int> > to_vector_foreach_byval(Range&) [with Range = const int[5]]' regress.cpp:138: instantiated from here ../../../boost/foreach.hpp:248: error: ISO C++ forbids initialization in array new ../../../boost/foreach.hpp: In constructor `boost::foreach::simple_variant<T>::simple_variant(const T&) [with T = const int[5]]': ../../../boost/foreach.hpp:349: instantiated from `boost::foreach::auto_any<boost::foreach::simple_variant<const T> > boost::foreach::contain(const T&, const bool&, mpl_::false_) [with T = int[5]]' regress.cpp:88: instantiated from `std::vector<int, std::allocator<int> > to_vector_foreach_byval(Range&) [with Range = const int[5]]' regress.cpp:138: instantiated from here ../../../boost/foreach.hpp:241: error: ISO C++ forbids initialization in array new gcc 3.4.3, with NO_CONST_RVALUE_DETECTION: works gcc 3.4.3, with NO_RVALUE_DETECTION: works gcc-4, without #defines: ../../../boost/foreach.hpp: In copy constructor 'boost::foreach::simple_variant<T>::simple_variant(const boost::foreach::simple_variant<T>&) [with T = const int [5]]': regress.cpp:88: instantiated from 'std::vector<int, std::allocator<int> > to_vector_foreach_byval(Range&) [with Range = const int [5]]' regress.cpp:138: instantiated from here ../../../boost/foreach.hpp:248: error: ISO C++ forbids initialization in array new ../../../boost/foreach.hpp: In constructor 'boost::foreach::simple_variant<T>::simple_variant(const T&) [with T = const int [5]]': ../../../boost/foreach.hpp:349: instantiated from 'boost::foreach::auto_any<boost::foreach::simple_variant<const T> > boost::foreach::contain(const T&, const bool&, mpl_::false_) [with T = int [5]]' regress.cpp:88: instantiated from 'std::vector<int, std::allocator<int> > to_vector_foreach_byval(Range&) [with Range = const int [5]]' regress.cpp:138: instantiated from here ../../../boost/foreach.hpp:241: error: ISO C++ forbids initialization in array new gcc 4, with NO_CONST_RVALUE_DETECTION: works gcc 4, with NO_RVALUE_DETECTION: works HTH, m