MESSAGE
| DATE | 2016-11-08 |
| FROM | Ruben Safir
|
| SUBJECT | Re: [Learn] C++ signature ambiguity
|
From learn-bounces-at-nylxs.com Fri Nov 11 06:21:14 2016
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To: learn-at-nylxs.com
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From: Ruben Safir
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Subject: Re: [Learn] C++ signature ambiguity
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On 11/08/2016 03:36 PM, Christopher League wrote:
> Unclear to me why one might need both, but I tried removing the
> reference version and it died with a similar error somewhere else. Maybe
> I just needed to push the change further, into member classes.
> =
> I think it=92s perfectly fine to decide either that every generic type
> parameter is a pointer (what Java does), or that it=92s passed by value=
=85
> and then the client code can specify it either as |foo| if it expects
> copies, or |foo| if it expects dynamic allocation. The duplication
> of supporting every variation of |T|, |T&|, |const T&|, and |const T&
> const| (is that a thing?) is damn annoying.
> =
> CL
> =
I'm on the horn with google engineers about it right now.
Look at the current code and explain this error? I need to understand why =
this fails.
|| g++ -Wall -ggdb -c nodes.cpp
|| g++ -Wall -ggdb -o fitch.o -c fitch.cpp =
|| nodes.h: In instantiation of =91tree::NODE::NODE(std::__cxx11::stri=
ng, const unk&, tree::NODE*, tree::NODE*, tree::NODE*) [with=
unk =3D tree::Pstates; std::__cxx11::string =3D std::__cxx11::basic_s=
tring]=92:
fitch.cpp|22 col 55| required from here
nodes.h|105 col 96| error: no matching function for call to =91tree::Pstate=
s::Pstates()=92
|| NODE::NODE( std::string xt, const unk &x, NODE *xcl , NODEk> *xcr, NODE *xp ){
|| =
^
nodes.h|180 col 3| note: candidate: tree::Pstates::Pstates(std::vecto=
r >) [with cost =3D int]
|| Pstates (std::vector< state > x)
|| ^~~~~~~
nodes.h|180 col 3| note: candidate expects 1 argument, 0 provided
nodes.h|174 col 7| note: candidate: tree::Pstates::Pstates(const tree:=
:Pstates&)
|| class Pstates
|| ^~~~~~~
> Ruben Safir ruben-at-mrbrklyn.com writes:
> =
> I need to separate these two method signatures
> =
> =
> include
> =
> =
> include
> =
> =
> include =93nodes.h=94
> =
> using namespace std;
> =
> int main(int argv, char ** argc) { tree::state a{=93A=94, 65500};
> tree::state c{=93C=94, 0}; tree::state g{=93G=94, 65500}; tree::state=
t{=93T=94,
> 65500};
> =
> vector< tree::state > posible_states =3D {a,c,g,t};
> =
> tree::Pstates node_status{posible_states}; tree::NODE cr1{=93T01=94, =
3};
> tree::NODE cl1{=93T00=94,2}; // tree::NODE root{=93T0=94,1};
> =
> // tree::NODE > cr1{=93T01=94, 3}; // tree::NODE > cl1{=93T00=94,2};
> tree::NODE > root{=93T0=94,node_status}; return 0; }
> =
> template class NODE{ public:
> //=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3DLIFECYCLE=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> /* Constructor // NODE( std::string xt, unk &x , NODE /xcl=3D 0, NODE
> /xcr =3D 0, NODE /xp =3D 0 ); NODE( std::string xt, unk x , NODE /xcl=
=3D
> 0, NODE /xcr =3D 0, NODE *xp =3D 0 ); ~NODE();
> =
> I=92m open to ideas
> =
> http://www.nylxs.com/docs/thesis/src/fitch/fitch.tgz is the code
> =
> =96 So many immigrant groups have swept through our town that
> Brooklyn, like Atlantis, reaches mythological proportions in the
> mind of the world - RI Safir 1998 http://www.mrbrklyn.com
> =
> DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002
> http://www.nylxs.com - Leadership Development in Free Software
> http://www2.mrbrklyn.com/resources - Unpublished Archive
> http://www.coinhangout.com - coins! http://www.brooklyn-living.com
> =
> Being so tracked is for FARM ANIMALS and and extermination camps,
> but incompatible with living as a free human being. -RI Safir 2013
> _______________________________________________ Learn mailing list
> Learn-at-nylxs.com http://lists.mrbrklyn.com/mailman/listinfo/learn
> =
> =
> =
> _______________________________________________
> Learn mailing list
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> =
-- =
So many immigrant groups have swept through our town
that Brooklyn, like Atlantis, reaches mythological
proportions in the mind of the world - RI Safir 1998
http://www.mrbrklyn.com =
DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002
http://www.nylxs.com - Leadership Development in Free Software
http://www2.mrbrklyn.com/resources - Unpublished Archive
http://www.coinhangout.com - coins!
http://www.brooklyn-living.com
Being so tracked is for FARM ANIMALS and and extermination camps,
but incompatible with living as a free human being. -RI Safir 2013
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