[Boost-bugs] [ boost-Bugs-1617058 ] doc of placeholer expression requirements incomplete

Bugs item #1617058, was opened at 2006-12-16 10:23 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1617058&group_id=7586 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Larry Evans (cppljevans) Assigned to: Nobody/Anonymous (nobody) Summary: doc of placeholer expression requirements incomplete Initial Comment: he 3 expression requirements on: http://www.boost.org/libs/mpl/doc/refmanual/placeholder-expression.html make no mention that X should have a nested type typedef. IOW, X must be a metafunction as defined here: http://www.boost.org/libs/mpl/doc/refmanual/metafunction.html However, I believe it should since I'm getting compile-time error messages without the nested typedef. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1617058&group_id=7586 ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Boost-bugs mailing list Boost-bugs@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

On 12/16/2006 10:23 AM, SourceForge.net wrote:
Bugs item #1617058, was opened at 2006-12-16 10:23 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1617058&group_id=7586 [snip] Initial Comment: he 3 expression requirements on:
http://www.boost.org/libs/mpl/doc/refmanual/placeholder-expression.html
make no mention that X should have a nested type typedef. IOW, X must be a metafunction as defined here:
http://www.boost.org/libs/mpl/doc/refmanual/metafunction.html
However, I believe it should since I'm getting compile-time error messages without the nested typedef.
The tuple_methods_proto.cpp in <boost-vauilt>/Template Metaprogramming demonstates the problem.
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Larry Evans
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