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new 26_numerics failure


Just seeing this new one:

FAIL: 26_numerics/valarray_name_lookup.cc (test for excess errors)

Not quite sure when it came in.

Looks like:

%COMP.sh "-static -c" 26_numerics/valarray_name_lookup.cc
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/bits/valarray_before.h: In
   member function `_Tp std::__acos::operator()(const _Tp&) const [with _Tp =
   My::Number]':
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/bits/valarray_before.h:462:   instantiated from `typename std::__fun<_Oper, typename _Arg::value_type>::result_type std::_UnBase<_Oper, _Arg>::operator[](unsigned int) const [with _Oper = std::__acos, _Arg = std::valarray<My::Number>]'
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/bits/valarray_after.h:189:   instantiated from `_Tp std::_Expr<_Clos, _Tp>::operator[](unsigned int) const [with _Clos = std::_UnClos<std::__acos, std::_ValArray, My::Number>, _Tp = My::Number]'
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/bits/valarray_array.tcc:88:   instantiated from `void std::__valarray_copy(const std::_Expr<_Dom, _Tp>&, unsigned int, std::_Array<_Tp>) [with _Tp = My::Number, _Dom = std::_UnClos<std::__acos, std::_ValArray, My::Number>]'
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/valarray:379:   instantiated from `std::valarray<_Tp>& std::valarray<_Tp>::operator=(const std::_Expr<_Dom, _Tp>&) [with _Dom = std::_UnClos<std::__acos, std::_ValArray, My::Number>, _Tp = My::Number]'
26_numerics/valarray_name_lookup.cc:105:   instantiated from here
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/bits/valarray_before.h:81: error: call
   of overloaded `acos(const My::Number&)' is ambiguous
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/cmath:99: error:
candidates
   are: float std::acos(float)
/usr/include/bits/mathcalls.h:55: error:                 double acos(double)
/mnt/hd/bld/bld-x86-gcc/i686-pc-linux-gnu/libstdc++-v3/include/


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