gcc/testsuite/g++.dg/cpp1y/udlit-char-template-vs-std-literal-operator.C

// { dg-do run { target c++14 } }
// { dg-options -w }

#include <cassert>

typedef decltype(sizeof(0)) size_type;

template<typename CharT, CharT... String>
int operator"" _script () {
  return 1;
}

int operator"" _script (const char*, size_type) {
  return 2;
}

int main ()
{
  assert ("123"_script == 2);
}