Re: [Boost-Users] Re: Re: Re: Re: Re: boost.function with CW 8.2 on W2k

10 Sep 2002

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"Peter Dimov"  schrieb im Newsbeitrag
news:001801c258e7$27b15d20$1d00a8c0@pdimov2...
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From: "Bertolt Mildner" 
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"Peter Dimov"  schrieb im Newsbeitrag
news:004301c258e2$cc559850$1d00a8c0@pdimov2...
From: "Douglas Gregor" 
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CW now gives me the same error in operator safe_bool() ...<<<
I'm curious... Do you get an error when you put boost/shared_ptr.hpp in
a
precompiled header?
No, I had no problems with Boost in precompiled headers so far except with
Boost.Function.
I'm using shared_ptr, BOOST_STATIC_ASSERT, lexical_cast, Boost.Threads,
From: "Bertolt Mildner" 
pool allocator, iterator adapters, any, ...<

shared_ptr reuses shared_ptr::get as the nonnull value, without a dummy
nested class:

    // implicit conversion to "bool"

    typedef T * (this_type::*unspecified_bool_type)() const;

    operator unspecified_bool_type() const // never throws
    {
        return px == 0? 0: &this_type::get;
    }

Perhaps something along these lines will work for boost::function.