{"action":"created","issue":{"url":"https://api.github.com/repos/boostorg/heap/issues/12","repository_url":"https://api.github.com/repos/boostorg/heap","labels_url":"https://api.github.com/repos/boostorg/heap/issues/12/labels{/name}","comments_url":"https://api.github.com/repos/boostorg/heap/issues/12/comments","events_url":"https://api.github.com/repos/boostorg/heap/issues/12/events","html_url":"https://github.com/boostorg/heap/issues/12","id":372711641,"node_id":"MDU6SXNzdWUzNzI3MTE2NDE=","number":12,"title":"Implicit dependency on <boost/mpl/if.hpp>?","user":{"login":"jbeich","id":11153579,"node_id":"MDQ6VXNlcjExMTUzNTc5","avatar_url":"https://avatars3.githubusercontent.com/u/11153579?v=4","gravatar_id":"","url":"https://api.github.com/users/jbeich","html_url":"https://github.com/jbeich","followers_url":"https://api.github.com/users/jbeich/followers","following_url":"https://api.github.com/users/jbeich/following{/other_user}","gists_url":"https://api.github.com/users/jbeich/gists{/gist_id}","starred_url":"https://api.github.com/users/jbeich/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jbeich/subscriptions","organizations_url":"https://api.github.com/users/jbeich/orgs","repos_url":"https://api.github.com/users/jbeich/repos","events_url":"https://api.github.com/users/jbeich/events{/privacy}","received_events_url":"https://api.github.com/users/jbeich/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-10-22T21:38:00Z","updated_at":"2018-10-28T16:52:33Z","closed_at":null,"author_association":"NONE","body":"After https://github.com/boostorg/concept_check/pull/14 some consumers no longer build: [asc](https://ptpb.pw/UGQX), [colmap](https://ptpb.pw/vw16), [krita](https://ptpb.pw/So9B), [osrm-backend](https://ptpb.pw/9V2R). What's the path forward? CC @mjcaisse\r\n\r\n```c++\r\n#include <boost/heap/fibonacci_heap.hpp>\r\n\r\nint main(void)\r\n{\r\n  return 0;\r\n}\r\n```\r\n```c++\r\n$ clang++70 test.cc\r\nIn file included from test.cc:1:\r\nIn file included from /usr/include/boost/heap/fibonacci_heap.hpp:19:\r\n/usr/include/boost/heap/detail/heap_comparison.hpp:139:34: error: no type named 'if_c' in namespace\r\n      'boost::mpl'\r\n    typedef typename boost::mpl::if_c<use_ordered_iterators,\r\n            ~~~~~~~~~~~~~~~~~~~~~^~~~\r\n/usr/include/boost/heap/detail/heap_comparison.hpp:139:38: error: expected unqualified-id\r\n    typedef typename boost::mpl::if_c<use_ordered_iterators,\r\n                                     ^\r\n/usr/include/boost/heap/detail/heap_comparison.hpp:144:5: error: unknown type name 'equivalence_check'\r\n    equivalence_check eq_check;\r\n    ^\r\n/usr/include/boost/heap/detail/heap_comparison.hpp:228:34: error: no type named 'if_c' in namespace\r\n      'boost::mpl'\r\n    typedef typename boost::mpl::if_c<use_ordered_iterators,\r\n            ~~~~~~~~~~~~~~~~~~~~~^~~~\r\n/usr/include/boost/heap/detail/heap_comparison.hpp:228:38: error: expected unqualified-id\r\n    typedef typename boost::mpl::if_c<use_ordered_iterators,\r\n                                     ^\r\n/usr/include/boost/heap/detail/heap_comparison.hpp:233:5: error: unknown type name 'compare_check'\r\n    compare_check check_object;\r\n    ^\r\n6 errors generated.\r\n```\r\n"},"comment":{"url":"https://api.github.com/repos/boostorg/heap/issues/comments/433722036","html_url":"https://github.com/boostorg/heap/issues/12#issuecomment-433722036","issue_url":"https://api.github.com/repos/boostorg/heap/issues/12","id":433722036,"node_id":"MDEyOklzc3VlQ29tbWVudDQzMzcyMjAzNg==","user":{"login":"pdimov","id":3116174,"node_id":"MDQ6VXNlcjMxMTYxNzQ=","avatar_url":"https://avatars0.githubusercontent.com/u/3116174?v=4","gravatar_id":"","url":"https://api.github.com/users/pdimov","html_url":"https://github.com/pdimov","followers_url":"https://api.github.com/users/pdimov/followers","following_url":"https://api.github.com/users/pdimov/following{/other_user}","gists_url":"https://api.github.com/users/pdimov/gists{/gist_id}","starred_url":"https://api.github.com/users/pdimov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pdimov/subscriptions","organizations_url":"https://api.github.com/users/pdimov/orgs","repos_url":"https://api.github.com/users/pdimov/repos","events_url":"https://api.github.com/users/pdimov/events{/privacy}","received_events_url":"https://api.github.com/users/pdimov/received_events","type":"User","site_admin":false},"created_at":"2018-10-28T16:52:33Z","updated_at":"2018-10-28T16:52:33Z","author_association":"NONE","body":"cc @glenfe :-)"}}
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