Re: [Boost-users] [Test] BOOST_*_COLLECTIONS

From: Sohail Somani (s.somani_at_[hidden])
Date: 2006-07-25 13:17:03

Err. Nm. Brain fart... Const ostream! 

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] 
> [mailto:boost-users-bounces_at_[hidden]] On Behalf Of 
> Sohail Somani
> Sent: Tuesday, July 25, 2006 10:00 AM
> To: boost-users_at_[hidden]
> Subject: [Boost-users] [Test] BOOST_*_COLLECTIONS
> 
> Sorry, I should have sent this email here:
> ---
> Hi,
> 
> With the following test case:
> 
> #include <boost/array.hpp>
> 
> template<typename T,size_t N>
> std::ostream operator<<(const std::ostream & os, const 
> boost::array<T,N> & arr)
> {
>     os << "[ ";
>     for(size_t i = 0 ; i < N-1; ++i)
>     {
>         os << arr[i] << ", ";
>     }
>     os << arr[N-1] << " ]";
>     return os;
> }
> 
> BOOST_AUTO_UNIT_TEST ( test_boost_test_array )
> {
>     boost::array<double,3> arr1[] = {
>         {{1,0,0}},
>         {{1,2,2}}
>     };
> 
>     boost::array<double,3> arr2[] = {
>         {{1,0,0}},
>         {{1,2,2}}
>     };
> 
>     BOOST_REQUIRE_EQUAL_COLLECTIONS(arr1,arr1+2,
>                                     arr2,arr2+2);
> }
> 
> I'm getting odd compile errors at this line:
> 
> res.message() << "\nMismatch in a position " << pos << ": "  
> << *left_begin << " != " << *right_begin;
> 
> gcc.compile.c++ bjam-build/gcc/release/unit_tests/data_utils.o
> external/boost/include/boost/test/utils/wrap_stringstream.hpp:
>  In function âboost::basic_wrap_stringstream<CharT>& 
> boost::operator<<(boost::basic_wrap_stringstream<CharT>&, 
> const T&) [with CharT = char, T = boost::array<double, 3u>]â:
> external/boost/include/boost/test/test_tools.hpp:495:   
> instantiated from âboost::test_tools::predicate_result 
> boost::test_tools::tt_detail::equal_coll_impl(Left, Left, 
> Right, Right) [with Left = boost::array<double, 3u>*, Right = 
> boost::array<double, 3u>*]â
> unit_tests/data_utils.cpp:62:   instantiated from here
> external/boost/include/boost/test/utils/wrap_stringstream.hpp:
> 66: error: no match for âoperator<<â in â(+ 
> targ)->boost::basic_wrap_stringstream<CharT>::stream [with 
> CharT = char]() << tâ
> 
> What am I missing here?
> 
> Sorry for the long email!
> 
> TIA,
> 
> Sohail
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