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boost::function not found??

Started by Gaiiden Oct 7, 2004 at 11:38 PM 2 replies 1.9k views

Original Post

Oct 7, 2004 at 11:38 PM


typedef boost::function<void(DataPtr)> Callback;

error C2039: 'function' : is not a member of 'boost' Ugh. I included "boost/function.hpp", I don't have the namespace defined but I'm doing boost::function<>, I made sure the boost folder was set in my include directories list, I tried a full rebuild... Anyone have any idea what I may be missing here? The example I saw listed only "boost/function.hpp" as being needed, so I don't know why I'm getting this error. It can't be a missing .lib can it? Since I haven't even reached the linking stage thanks to this error (and a few other related ones). [help]

Houdini

Oct 7, 2004 at 11:44 PM

Perchance are you using a non-conforming compiler such as VC++ 6.0? If so, you need to use 'typedef boost::function1 Callback;' instead.

- Houdini

darookie

Oct 7, 2004 at 11:46 PM

I guess this a compiler-specific issue. Older versions of the VC++
compiler (VC++ 6 for sure, maybe even VC++ 2002) don't have full support for C++ templates. You will have to use boost::function_1 or something like that depending on the number of actual arguments passed to it.

VC++ 2003 and later don't have this problem. I don't know for any other compiler (like older versions of GCC), but with VC++ lack of template support is the main reason for this issue.

Check out the boost docs, IIRC this is mentioned somewhere.

Hope this helps,
Pat.

Gaiiden

Oct 7, 2004 at 11:52 PM

[oh]

When I was reading the docs I assumed the portable syntax to mean platforms, not compilers. D'oh! Obviously I was skimming and didn't pay it much heed, because in retrospect that's a kinda dumb assumption. But I see now that they list VC++ 6 under the portable syntax table at the top.

I knew it was something stupid. Ah well. Rating++ to you guys [smile]

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