The talk of inline functions gave me an idea. How about doing something
like this as a workaround:
template<class A1>  class list1
{
public:
[...]
BOOST_BIND_INLINE A1 operator[] (arg<1> ) const { return a1_; }
BOOST_BIND_INLINE A1 operator[] (arg<1> (*)()) const { return a1_; }
[..] (same for all lists)

[...]
template<int I>  struct add_value<arg<I> >
{
typedef arg<I>  type;
};

template<int I>  struct add_value<arg<I>(*)() >
{
typedef arg<I>  type;
};
[...]
template<int I>  BOOST_BIND_INLINE _avt_r1 _avt_f(arg<I>);
template<int I>  BOOST_BIND_INLINE _avt_r1 _avt_f(arg<I>(*)());
[...]
namespace
{
inline boost::_bi::arg<1>  _1() { return boost::_bi::arg<1>(); };
inline boost::_bi::arg<2>  _2() { return boost::_bi::arg<2>(); };
inline boost::_bi::arg<3>  _3() { return boost::_bi::arg<3>(); };
inline boost::_bi::arg<4>  _4() { return boost::_bi::arg<4>(); };
inline boost::_bi::arg<5>  _5() { return boost::_bi::arg<5>(); };
inline boost::_bi::arg<6>  _6() { return boost::_bi::arg<6>(); };
inline boost::_bi::arg<7>  _7() { return boost::_bi::arg<7>(); };
inline boost::_bi::arg<8>  _8() { return boost::_bi::arg<8>(); };
inline boost::_bi::arg<9>  _9() { return boost::_bi::arg<9>(); };
}

This way it can remain one header with no extra defines based on whether
you want/don't want precompiled headers. Or is something wrong with
this code?

-----Original Message-----
From: Peter Dimov [mailto: pdimov@[...].. ]
Sent: Wednesday, January 30, 2002 1:33 PM
To: boost@[...].com
Subject: Re: [boost] boost bind/functional/reference wrapper/mem_fn


>  The problem is not related to libraries as I first suspected (although
>  the linkage of the library is the first place it shows up), but rather
>  to precompiled headers. This is the default for newly created
projects
>  in MSVC usually. It is not documented that bind cannot be used in
>  precompiled headers. It is for this failure to compile that I asked
>  that they be macros.

I've moved the placeholders to their own header,
boost/bind/placeholders.hpp. bind.hpp now includes this header unless
BOOST_BIND_NO_PLACEHOLDERS is defined. The placeholders are now of type
boost::arg<N>  (they were of type boost::_bi::arg<N>); arg<> is defined
in
boost/bind/arg.hpp.



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