Re: [Boost-users] what does BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP

From: John Maddock (john_at_[hidden])
Date: 2005-01-25 05:49:50

>I need some expert's opinion on this:
>
> When I try to use the boost 1.32.0 in my work env, if i don't define this
> flag BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP, the
> lib/smart_ptr/test/intrusive_ptr_test.cpp fails to compile. if i do define
> it, my compiler would be happy (HP aCC) on intrusive_ptr_test.  My
> questions are:
>
> 1) What is the BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP?

It signifies that the compiler does not support argument dependent lookup of 
unqualified names, for example:

foo(bar);

will look for a definition of "foo" in the same namespace in which the type 
of bar is defined.

> 2) What will be the other impacts if I do define it in my code globally
> besides the intrusive_ptr_test?

It will activate various workarounds inside Boost code, and possibly disable 
a few features here and there as well; on the whole though you shouldn't 
notice any real difference, just be aware that you are using a compiler 
known to be rather broken.

John.