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Re: ambiguous reference to 'find' in std and std::ranges namespaces

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13.04.2022 16:28 Juha Nieminen kirjutas:
> Juha Nieminen <nospam@thanks.invalid> wrote:
>> Paavo Helde <eesnimi@osa.pri.ee> wrote:
>>> In my implementation it appears to be implemented as a function object,
>>> having operator() member functions. I guess the problem is caused by
>>> this specific implementation, as the whole point of niebloids seems to
>>> be the opposite (avoiding clashes with the std:: namespace).
>>
>> Perhaps a minimal example that replicates the mentioned behavior could
>> illuminate if this is normal to-be-expected behavior, a problem with
>> the library implementation, or perhaps even a problem with the compiler
>> itself.
> 
> (I mean a minimal example that doesn't use the standard library,
> ie. a piece of code that itself demonstrates what's happening inside
> the library for this error to happen.)

Here you are:

namespace A {
    template<typename T> void foo(T, T, T) {}
}

namespace B {
     struct C {
         void operator()(int) {}
     } foo;
}

using namespace A;
using namespace B;

int main() {
     foo(1);
}

ConsoleTestVS2019.cpp(15,8): error C2872: 'foo': ambiguous symbol
ConsoleTestVS2019.cpp(2,30): message : could be 'void A::foo(T,T,T)'
ConsoleTestVS2019.cpp(8,7): message : or       'B::C B::foo'
ConsoleTestVS2019.cpp(15,5): error C2672: 'A::foo': no matching 
overloaded function found
ConsoleTestVS2019.cpp(15,10): error C2780: 'void A::foo(T,T,T)': expects 
3 arguments - 1 provided
ConsoleTestVS2019.cpp(2): message : see declaration of 'A::foo'

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ambiguous reference to 'find' in std and std::ranges namespaces Ralf Goertz <me@myprovider.invalid> - 2022-04-13 09:58 +0200
  Re: ambiguous reference to 'find' in std and std::ranges namespaces Paavo Helde <eesnimi@osa.pri.ee> - 2022-04-13 14:27 +0300
    Re: ambiguous reference to 'find' in std and std::ranges namespaces Bo Persson <bo@bo-persson.se> - 2022-04-13 14:21 +0200
      Re: ambiguous reference to 'find' in std and std::ranges namespaces Paavo Helde <eesnimi@osa.pri.ee> - 2022-04-13 15:31 +0300
    Re: ambiguous reference to 'find' in std and std::ranges namespaces Juha Nieminen <nospam@thanks.invalid> - 2022-04-13 13:26 +0000
      Re: ambiguous reference to 'find' in std and std::ranges namespaces Juha Nieminen <nospam@thanks.invalid> - 2022-04-13 13:28 +0000
        Re: ambiguous reference to 'find' in std and std::ranges namespaces Paavo Helde <eesnimi@osa.pri.ee> - 2022-04-13 17:26 +0300
        Re: ambiguous reference to 'find' in std and std::ranges namespaces Christian Gollwitzer <auriocus@gmx.de> - 2022-04-14 07:13 +0200
          Re: ambiguous reference to 'find' in std and std::ranges namespaces Ralf Goertz <me@myprovider.invalid> - 2022-04-14 08:57 +0200
            Re: ambiguous reference to 'find' in std and std::ranges namespaces Bo Persson <bo@bo-persson.se> - 2022-04-14 13:23 +0200
              Re: ambiguous reference to 'find' in std and std::ranges namespaces Paavo Helde <eesnimi@osa.pri.ee> - 2022-04-14 16:32 +0300
                Re: ambiguous reference to 'find' in std and std::ranges namespaces Bo Persson <bo@bo-persson.se> - 2022-04-14 18:30 +0200
              Re: ambiguous reference to 'find' in std and std::ranges namespaces Ralf Goertz <me@myprovider.invalid> - 2022-04-15 10:14 +0200
            Re: ambiguous reference to 'find' in std and std::ranges namespaces Manfred <noname@add.invalid> - 2022-04-14 15:02 +0200
  Re: ambiguous reference to 'find' in std and std::ranges namespaces Christian Hanné <the.hanne@gmail.com> - 2022-04-15 14:39 +0200

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