Simple remedy on CLANG error: no member named * in namespace *

Given the following code snippet in C++, when it is compiled with gcc, there is no issue. However, when compiled using the clang, then we see the following error:

Compilation:

clang++ -std=c++14 -pedantic -Wall  main.cpp

Output:

main.cpp:12:18: error: no member named 'runtime_error' in namespace 'std'
      throw std::runtime_error("Cannot find the input file...");
            ~~~~~^
1 error generated.

Code snippet given the above error with Clang.

#include <fstream>
#include <iostream>

using namespace std;

int main() {

   ifstream input;
   input.open("test.txt");

   if (!input.is_open()){
      throw std::runtime_error("Cannot find the input file...");
   }

   input.close();

   return 0;
}

This is because clang cannot find the header file. Either it should be included or simply telling clang which header file to look at solves the problem. In this particular example, including the header file where runtime_error() is defined which is the #include is good enough.