[Bug c++/77449] False ambiguity for variadic function with non-deduced template parameter

[egall at gwmail dot gwu.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77449

Eric Gallager <egall at gwmail dot gwu.edu> changed:

           What    |Removed                     |Added
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                 CC|                            |egall at gwmail dot gwu.edu

--- Comment #1 from Eric Gallager <egall at gwmail dot gwu.edu> ---
The full error message is:

$ /usr/local/bin/g++ -c -Wall -Wextra pr77449.cc
pr77449.cc: In function ‘int main()’:
pr77449.cc:11:17: error: call of overloaded ‘bar(int, const char [1])’ is
ambiguous
  bar<void>(7, ""); // ambiguous according to gcc
                 ^
pr77449.cc:4:6: note: candidate: void bar(Check, T ...) [with X = void; Check =
int; T = {const char*}]
 auto bar(Check, T...) -> void;
      ^~~
pr77449.cc:7:6: note: candidate: void bar(int, T ...) [with X = void; T =
{const char*}]
 auto bar(int, T...) -> void;
      ^~~

As a human reader who doesn't know C++ very well I'd consider it to be
ambiguous, too... maybe as a compromise the error could be downgraded to a
warning?