[Bug c++/63940] New: C++ constexpr errors on AIX

[dje at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63940

            Bug ID: 63940
           Summary: C++ constexpr errors on AIX
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dje at gcc dot gnu.org

Created attachment 34029
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34029&action=edit
Full compiler error output

/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, false, false>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, false, true>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, true, false>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
424:31:   in constexpr expansion of 'std::__detail::_BracketMatcher<
<template-parameter-1-1>, <anonymous>, <anonymous>
>::_S_cache_size<std::regex_traits<char>, true, true>()'
/tmp/20141118/powerpc-ibm-aix7.1.0.0/libstdc++-v3/include/bits/regex_compiler.h:
425:20: error: '(int)(1ul * 8ul)' is not a constant expression