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Re: [v3] Implement DR 1137

> 2010-02-21  Paolo Carlini  <>
>         * include/std/complex (proj): Change return type per DR 1137.
>         (conj): Copy from tr1_impl, likewise adjust return type.
>         * include/tr1_impl/complex (conj): Remove.
>         * include/tr1/complex (conj): Add both overloads.
>         * testsuite/26_numerics/complex/ Rename to...
>         * testsuite/26_numerics/complex/ ... this, and extend.
>         * include/tr1_impl/complex (arg): Optimize.

I am not sure if this is a problem with the patch or with ia64 HP-UX but
I am getting a build failure:

/proj/opensrc_nobackup/nightly2/build-ia64-hp-hpux11.23-trunk/obj_gcc/ia64-hp-hpux11.23/libstdc++-v3/include/tr1_impl/complex: In function 'typename __gnu_cxx::__promote<_Tp>::__type std::arg(_Tp)':
/proj/opensrc_nobackup/nightly2/build-ia64-hp-hpux11.23-trunk/obj_gcc/ia64-hp-hpux11.23/libstdc++-v3/include/tr1_impl/complex:314:14: error: 'signbit' is not a member of 'std'

I will try to investigate this and get more details about the failure.

Steve Ellcey

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