What is happening here is that in the two element initializer list both of the string literals can be implicitly converted to const char*
since their type is const char[N]
. Now std::vector
has a constructor that takes two iterators which the pointers qualify for. Because of that the initializer_list
constructor of the std::vector<std::string>
is conflicting with the iterator range constructor of std::vector<int>
.
If we change the code to instead be
doSomething({"hello"s, "stack"s});
Then the elements of the initializer list are now std::string
s so there is no ambiguity.